Cup Or Shell Drawing (i.e., Deep Drawing) Patents (Class 72/347)
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Publication number: 20130125852Abstract: A starting element has a housing (4) and a guide pin (6) for centering the starting element during assembly. The guide pin (6) is made of sheet metal and is connected to the housing (4) by means of a positive connection. A method of producing such housing of a starter element is also disclosed.Type: ApplicationFiled: November 15, 2012Publication date: May 23, 2013Applicant: ZF Friedrichshafen AGInventor: ZF Friedrichshafen AG
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Publication number: 20130104616Abstract: A method of production of pressed sheet parts with integrated preparation of blanks of non-uniform thickness includes the steps of heating a steel sheet blank in heating equipment to the austenite region of the steel of the sheet steel blank in question, then forming the blank into a flat semi-finished product of non-uniform thickness in forming equipment, then immediately thereafter deep drawing the semi-finished product in deep drawing equipment into a final spatially shaped part. The method may further include cooling down the final spatially shaped part either during the drawing step or immediately after the deep drawing step in a manner which causes the final spatially shaped part to develop hardening microstructure, which imparts high strength to the final shaped part with non-uniform wall thickness.Type: ApplicationFiled: October 26, 2012Publication date: May 2, 2013Inventors: Bohuslav MASEK, Hana JIRKOVÁ, David AISMAN, Jiri Malina
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Patent number: 8424356Abstract: A deep drawing apparatus is provided in which a sheet material is subjected to optimal heating and cooling, whereby the limiting draw ratio is increased and a product can be worked more deeply, and uniformity of the sheet thickness of the product can be controlled. This apparatus includes: a punch 2 for subjecting a sheet material 9 to deep drawing; a die 3, used along with the punch, for forming the sheet material and subject the same to deep drawing; an anti-wrinkling component 4 for preventing wrinkling around the periphery of the forming portion in the sheet material; an induction heating coil 5 for directly heating the sheet material at a portion supported by the anti-wrinkling component; a heating controller 6 for controlling the amount of heating of the sheet material by the induction heating coil; and cooling means 21 to 23 for cooling the sheet material at the portion formed by the punch.Type: GrantFiled: January 10, 2008Date of Patent: April 23, 2013Assignee: Nagaoka University of TechnologyInventors: Ikuo Tanabe, Hiroyuki Sugai
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Patent number: 8413480Abstract: A bending apparatus for bending a metal member includes at least one die, a punch disposed on an opposite side of the die through the metal member for pressurizing the metal member by relatively moving with respect to the die to perform bending, and a knock out die for supporting the metal member when the bending is performed. Friction generated on a surface of the knock out die for receiving the metal member becomes smaller continuously or gradually from a center portion toward side portions thereof in a bending ridge line direction.Type: GrantFiled: May 24, 2012Date of Patent: April 9, 2013Assignee: Canon Kabushiki KaishaInventor: Ken Matsui
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Patent number: 8413477Abstract: A calibration tool for fabricating disk springs. The tool includes a circular cylindrical tool body having an insertion bevel at its face end portion for receiving and centering a workpiece within an inner circumferential enveloping surface of the tool body. A tool surface at the inner circumferential enveloping surface aligns the workpiece relative to a forming tool disposed within the inner circumferential enveloping surface. The tool surface includes a first portion having an inner diameter that increases in size along the axial longitudinal direction of the tool body, and a second portion with an inner diameter that decreases in size along the axial longitudinal direction of the tool body.Type: GrantFiled: March 26, 2009Date of Patent: April 9, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Fabian Bauer, Dianne Shelly, Kunding Wang
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Publication number: 20130081439Abstract: A manufacturing method for a cup-shaped member including a corrugated portion includes a drawing step, a preliminary processing step, and a finishing step. In the preliminary processing step, at least preliminary large diameter portions in a preliminary corrugated portion are each formed to have a width larger than the size of each of the large diameter portions of the corrugated portion, thereby reducing an ironing resistance in the manufacturing of the cup-shaped member.Type: ApplicationFiled: September 12, 2012Publication date: April 4, 2013Applicant: AISIN AW CO., LTD.Inventors: Isao NAKASHIMA, Masaki NAKAJIMA, Atsushi MAEDA
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Patent number: 8402804Abstract: A device for forming a tailored blank plate 12 having a thick plate 14 connected to a thin plate 16 to a desired configuration is provided with a press device 10 and a re-strike device 100. The press device 10 is provided with a first punch part 18, a first die part 20 and holder parts 22 and 22. Between the first punch part 18 and the first die part 20, the tailored blank plate 12 is mounted and positioned so that a stepped part 12b intersects orthogonally to punch protruding parts 50a and 50b of the first punch part 18 and punch recessed parts 72a and 72b of the first die part 20 to press-form the tailored blank plate 12. Then, the press-formed tailored blank plate 212 is moved to the re-strike device 100 to carry out a re-striking process by a second punch part 102 and a second die part 104, so as obtain the tailored blank plate 300 of a final shape.Type: GrantFiled: July 22, 2010Date of Patent: March 26, 2013Assignee: Honda Motor Co., Ltd.Inventors: Keiichiro Nakao, Takanori Sato, Takuo Kobayashi
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Publication number: 20130068775Abstract: A cooking utensil having a deformation-free base and a method for producing said cooking utensil are disclosed. The cooking utensil enables temperature regulation of the entire cooking system enabling cooking/roasting in a very energy-efficient manner and additionally with a large number of advantageous properties, some of which are safer handling, no flames or fires in the kitchen, no akrylamide, no more carcinogenic substances, no oil deterioration and many others. The method for producing a cooking utensil with a deformation-free base allows for production of an inexpensive cooking utensil using industry-standard technology and production steps without having to resort to external technologies.Type: ApplicationFiled: April 20, 2011Publication date: March 21, 2013Applicant: Mitsubishi Electric CorporationInventors: Dusko Maravic, Sebastian Rastberger
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Publication number: 20130062041Abstract: A multi-layered heat transfer tube for use in a carburetor for a liquefied gas, comprising an inner tube which is equipped with a passage through which a liquefied gas can pass and an outer tube which covers the outer peripheral surface of the inner tube, wherein each of the inner tube and the outer tube has multiple fins that extend in the direction of the length of the multi-layered heat transfer tube and are arranged along the direction of the circumference of the multi-layered heat transfer tube, at least the outer tube is composed of a fully dense material, and the outer tube covers the entire outer surface of the inner tube and is bound to the inner tube via a metallic bond.Type: ApplicationFiled: May 23, 2011Publication date: March 14, 2013Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Akira Sakae, Kotaro Toyotake
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Publication number: 20130056298Abstract: A shell muffler for an internal combustion engine that is formed of a first shell and at least one second shell, which shells are connected at their respective edge regions BS so as to form the shell muffler, each edge region BS having a box-like inner contour KSi, which has four corner regions (E1)-(E4) and a width (B) and a length (L), and an outer contour KSa, and each shell being produced from a shell blank R, which is formed by deforming a sheet metal strip using a deep drawing tool having the shape of the shell, the blank R, after deforming, having an edge region BR with an outer contour KR, said edge region being removed at least partially after the blank H has been cut to size so as to form the outer contour KSa of the edge region BS of the shell, In addition to the box-like basic shape G, the inner contour KSi of the edge region BS of the shell has at least one corner region (E1-E4) which is expanded beyond the width B and the length L of the box-like basic shape (G) and is thus adapted at least partType: ApplicationFiled: May 17, 2011Publication date: March 7, 2013Applicant: HEINRICH GILLET GMBHInventor: Klaus Schröer
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Publication number: 20130040161Abstract: The invention relates to a component, a method, and a tool for forming, in particular for the lateral extrusion or upsetting of thin-walled preforms to form components having a structure formed thereon, in particular having a toothing, wherein, by carrying out the method according to the invention and by using the tool according to the invention, buckling of the wall of the preform during the forming process to form the component according to the invention is prevented.Type: ApplicationFiled: August 20, 2012Publication date: February 14, 2013Applicant: Schuler Cartec GmbH & Co. KGInventors: Lars GERLACH, Michael WERBS, Andreas BAWOHL, Karl GEISINGER
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Publication number: 20120299335Abstract: A recess (1?) is proposed in a bottom panel (2?) of a body, in particular of a vehicle body, having a recess bottom (4?) which for its part merges into a recess wall (5?), wherein the recess (1?) has one or more first bottom corrugations (3?) which reinforce the recess bottom (4?) and one or more first wall corrugations (6?) which reinforce the recess wall (5?), wherein at least one first bottom corrugation (3?) and at least one associated first wall corrugation (6?) are arranged in a common vertical plane in such a way and are formed in such a way that the profile structure of the first bottom corrugation (3?) adjoins the profile structure of the associated first wall corrugation (6?) in the transition region from the recess bottom (4?) to the recess wall (5?), and wherein the shaped-out portion of said first wall corrugation (6?) is changed with regard to the shaped-out portion of the first bottom corrugation (3?) in such a way that the first bottom corrugation (3?) is formed towards the recess interior andType: ApplicationFiled: November 26, 2010Publication date: November 29, 2012Inventors: Knut Raffel, Tran Minh Dang
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Patent number: 8316686Abstract: A press tool arrangement for use in hot creep forming, a method of hot creep forming a component of titanium alloy, and a resilient urging arrangement usable at elevated temperatures are described. The press tool arrangement includes a die, a holder member engageable with a blank of material in the die, and a resilient urging arrangement engageable with the holder member to urge same against a blank of material in the die.Type: GrantFiled: August 26, 2009Date of Patent: November 27, 2012Assignee: Rolls-Royce PLCInventor: Timothy J. Summers
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Patent number: 8312753Abstract: A method of forming a hollow curled portion on a hollow body, the curled portion being oriented from one end to the other end of the hollow body. The method includes a bending step of curving an end of the hollow body toward another end of the hollow body, thereby forming a curled portion, an ironing step of ironing the curled portion with a die, and a recurving step of stopping the die from ironing the curled portion and allowing the curled portion to recurve under its own resiliency in a direction opposite to the direction in which the end of the hollow body has been curved. The ironing step and the recurving step are repeated.Type: GrantFiled: July 2, 2010Date of Patent: November 20, 2012Assignee: Honda Motor Co., Ltd.Inventors: Tsunenari Futagi, Nobuyuki Kakiya, Tadahisa Akiyama, Ikuo Kato, Akitoshi Uchiumi
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Patent number: 8296922Abstract: A method for producing low-springback half shells made of a metal, in particular steel or a steel alloy, includes drawing in at least one drawing die a blank, such that the blanks have flange regions on the deep drawn body after the deep drawing. The flange regions are shaped by upsetting a corner substantially perpendicularly to a wall of the deep drawn region of the blank and the flange regions are subsequently trimmed in a shearing die, such that half shells without margins are produced.Type: GrantFiled: April 23, 2007Date of Patent: October 30, 2012Assignee: ThyssenKrupp Steel Europe AGInventors: Thomas Flehmig, Lothar Hömig, Konstantinos Savvas
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Patent number: 8256262Abstract: A bending apparatus for bending a metal member includes at least one die, a punch disposed on an opposite side of the die through the metal member for pressurizing the metal member by relatively moving with respect to the die to perform bending, and a knock out die for supporting the metal member when the bending is performed. Friction generated on a surface of the knock out die for receiving the metal member becomes smaller continuously or gradually from a center portion toward side portions thereof in a bending ridge line direction. In addition, a surface of the knock out die includes multiple grooves formed at the side portions thereof in the bending ridge line direction, and widths of the multiple grooves become larger continuously or gradually from the center portion toward the side portions of the knock out die in the bending ridge line direction.Type: GrantFiled: March 24, 2009Date of Patent: September 4, 2012Assignee: Canon Kabushiki KaishaInventor: Ken Matsui
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Publication number: 20120217717Abstract: A component, especially a control arm for a vehicle, includes a base wall and a passage extending away from said base wall, and in particular, a control arm lug. A method for producing such a component includes shortening a deep-drawn contour which connects one side of the base wall to an inner contour of a passage in the longitudinal direction of the passage by means of upsetting.Type: ApplicationFiled: September 14, 2010Publication date: August 30, 2012Inventors: Ernst Lindtner, Josef Schellnegger
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Publication number: 20120204618Abstract: The invention relates to a device, a method and a tool for producing a rimmed passage in a component, said device having a die unit and a punch apparatus, wherein the die unit can be arranged on a first side of the component and the punch apparatus can be arranged opposite on a second side of the component. As claimed in the invention, the punch apparatus includes a hollow punch with a punch recess which is matched to a die section of the die unit in such a manner that when there is a relative movement between the unit and the punch apparatus, the die section enters the punch recess, wherein the punched-out material region is pushed into the punch recess.Type: ApplicationFiled: February 24, 2012Publication date: August 16, 2012Applicant: Tox Pressotechnik GmbH & Co. KGInventor: Michael BADENT
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Patent number: 8240014Abstract: A method of fabricating a piezo actuator is disclosed. The method includes forcing a blank against a mold to form a cylindrical casing having an open end and a closed end and rotating the cylindrical casing. The method also includes urging a die having a plurality of equally spaced protrusions into a surface of the cylindrical casing to form bellows in the cylindrical casing. The method further includes positioning a piezo element within the cylindrical casing.Type: GrantFiled: August 18, 2008Date of Patent: August 14, 2012Assignee: Caterpillar Inc.Inventors: Dennis H. Gibson, Jinhui Sun
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Publication number: 20120198905Abstract: According to the present invention, an apparatus for manufacturing necking cans processes inlets of cans for which drawing processes are completed, wherein the apparatus comprises: a lower press plate; an upper press plate arranged so as to move linearly in the upward and downward directions relative to the lower press plate; a molding unit including a guide formed on the lower press plate, a plurality of holders arranged on the guide such that the holders can be transferred, and a plurality of molds arranged on the upper press plate; transferring means for transferring the holders along the guide; and driving means for driving the upper press plate. The apparatus of the present invention is advantageous in that cans for which the drawing processes are completed are linearly transferred by a plurality of cylinders and processed at a high speed.Type: ApplicationFiled: October 20, 2010Publication date: August 9, 2012Applicant: PASECO CO., LTD.Inventor: Il Han Yoo
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Publication number: 20120073350Abstract: A bossed disc-like member manufacturing method and apparatus with which it is possible to simply form a boss portion with a desired height. The method includes a level difference formation step that moves a second portion, which is positioned on the inner peripheral side of a first portion in a radial direction of a disc-like blank, relative to the first portion in a first direction which is the thickness direction of the blank, thus forming a level difference between the first portion and the second portion. A conical portion formation step moves the second portion relative to the first portion in a second direction opposite to the first direction, eliminating the level difference. In this manner, a conical portion is formed in the second direction on the inner side of the second portion; and a burring step performs a burring process on the conical portion, thus forming the boss portion.Type: ApplicationFiled: August 16, 2011Publication date: March 29, 2012Applicant: AISIN AW CO., LTD.Inventors: Daisuke IWATA, Masanori SATO, Masayuki MAKI, Yohei MUKAIDA
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Publication number: 20120055223Abstract: This method is for producing a compact (fuel-cell separator) having a projection by pressing a plate by a die and a punch. A tip end surface of the punch presses the plate to form an overhang, and then a sidewall of the overhang is sandwiched between an inclined surface of the die and an inclined surface of the punch, and in this state the sidewall is rolled, thereby forming the projection.Type: ApplicationFiled: August 15, 2011Publication date: March 8, 2012Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Takuma WATANABE, Kohei USHIDA, Shirou FUJIMURA
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Patent number: 8091403Abstract: A bodymaker ram attachment has a screwed locator (60), which is fastened to a slide block (70) of the bodymaker and can be aligned to the machine. A new ram with an internal thread and location diameter is screwed onto the locator. A clamp ring (65) tightens a locking element (80) so as to fix the ram (50) to the locator (60) when screws (68), which fasten the clamp ring to the locator, are tightened. The advantage of this new attachment is that the ram can be removed quickly by loosening the clamp ring and locking element then unscrewing the ram from the locator. The ram can then be removed and replaced by sliding through the front of the machine without the need for further disassembly.Type: GrantFiled: September 17, 2007Date of Patent: January 10, 2012Assignee: Crown Packaging Technology, Inc.Inventor: William Woulds
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Patent number: 8061176Abstract: A press molding device, which has a die 2, a punch 3 and a cushion ring constituted by a first cushion ring 5 and a second cushion ring 6, is characterized in that the first cushion ring 5 is disposed around the punch 3, the punch 3 has a void 3c which houses the second cushion ring 6, and the second cushion ring 6 is housed in the void 3c of the punch 3 and has a reinforcing structure 50 maintaining posture of the second cushion ring 6.Type: GrantFiled: February 15, 2006Date of Patent: November 22, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Norihiro Takayama, Yasuhito Hanaki
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Patent number: 8057571Abstract: There is disclosed a cemented carbide tool containing tungsten carbide, titanium carbide, nickel and cobalt, molybdenum and chromium. The composition of the materials provides a good resistance to corrosion as well as high hardness and wear resistance. These properties are particularly interesting for the manufacture of tools for coldforming operations. Cold forming tools made with these materials have steady performance over a long period of time.Type: GrantFiled: December 20, 2007Date of Patent: November 15, 2011Assignee: Sandvik Intellectual Property ABInventors: Emmanuel Pauty, Håkan Engström, Victor Rimbau, Gerard Vasco i Salas
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Patent number: 8051696Abstract: The invention provides a press forming method of an aluminum alloy sheet and a press device capable of forming a large panel which is an automobile body outer panel such as a luggage outer panel and the like and is of a shape difficult in forming. In a method of press forming of the aluminum alloy sheet 30 into a formed product panel having non-contact outer peripheral parts 5, 6 not contacting the punch for forming the center part of the panel until the vicinity of the bottom dead point, the first punch forming the center part 2 of the panel and the second punch 15 capable of shifting independently with respect to the first punch are provided, and these punches are interlocked with each other so that the second punch 15 is made contact the non-contact outer peripheral parts 35, 36 of the sheet with the relative position of the second punch 15 with respect to the first punch 11 being shifted to the dice 22 side.Type: GrantFiled: March 7, 2007Date of Patent: November 8, 2011Assignee: Kobe Steel, Ltd.Inventors: Masatoshi Yoshida, Haruyuki Konishi, Takeo Sakurai
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Publication number: 20110265540Abstract: A metallic reflector device having one or an array of individual reflector elements for positioning over a corresponding one or array of light sources, preferably comprising one or more light emitting diodes (LEDs). The metallic reflector device includes a planar base and a plurality of the reflector elements. The planar base has one or a plurality of apertures, each aperture having an edge that defines a proximal rim of the reflector element. Each reflector element includes an annular sidewall having an inner surface that extends from the proximal annular rim to a distal annular rim. The proximal annular rim defines a first opening through which direct and reflected light from a light source is emitted. The distal annular rim defines a second opening through which the light source is disposed. The inner surface of the annular sidewall is formed from the material of the planar sheet by mechanically deforming the planar sheet, such as by stamping or drawing.Type: ApplicationFiled: July 8, 2011Publication date: November 3, 2011Applicant: LSI Industries, Inc.Inventor: John D. Boyer
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Patent number: 8037727Abstract: A non-planar sputter target having differing crystallographic orientations in portions of the sputter target surface that promote more desirable deposition and density patterns of material sputtered from the target surface onto a substrate. A closed dome end of the sputter target is comprised of a first crystallographic orientation and sidewalls of the sputter target are comprised of a crystallographic orientation different from that of the dome. The sputter target is formed, preferably by hydroforming or other metal working techniques, in the absence of annealing. The hydroforming manipulations result in the different crystallographic orientations while minimizing, or ideally omitting, the application of heat. Quick and cost effective non-planar sputter targets that are easily repeatably producable are achievable as a result.Type: GrantFiled: May 29, 2009Date of Patent: October 18, 2011Assignee: Tosoh SMD, Inc.Inventors: Robert S. Bailey, Melvin K. Holcomb, David B. Smathers, Timothy Wiemels
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Publication number: 20110219842Abstract: A forming device for cup-shaped hollow bodies (7) having a machine frame (2), a drive device (15), a workpiece rotary table (3) and having a tool holder (4) for accommodating processing tools (10), wherein the workpiece rotary table (3) and the tool holder (4) face one another and can be turned about a rotational axis (5) in relation to one another and can be linearly moved in relation to one another along the rotational axis (5), wherein the drive device (15) is designed for providing a rotary step movement and a cyclical linear movement between workpiece rotary table (3) and tool holder (4), in order to enable the hollow bodies (7) to be formed by means of the processing tools (10) in a plurality of consecutive processing steps, and wherein the workpiece holder (6) has a recess (16) for accommodating a hollow body (7) and a wall section (42), which limits the recess (16) in certain areas, has an adjustable geometry, which is designed to narrow the cross-section of the recess (16), in order to enable the holType: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Applicant: HINTERKOPF GMBHInventors: Helmut Aichele, Josef Schulz, Alexander Traxler
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Patent number: 8015851Abstract: When forming a dowel section by performing press working on each of portions constituting side walls of a buckle base member, a die having a negative clearance with a punch portion (2) is used whose length or diameter is larger than a length or diameter of a die portion (3). The dowel section is required as a guide for a tongue inserted into a buckle and as a load receiver when a latch member is elongated at a time of collision etc. When a ratio C/t of a clearance C between the punch portion and the die portion with respect to a plate thickness t of the buckle base member is set within a range of ?(30 to 5) %, no crack is generated in the root of the dowel section, and the dowel section of a shear cross-section length ?0.25×t, a shear cross-section starting height ?0.7×t, and a height of (0.70 to 0.95)×t is easily obtained, and the perpenducularity of the dowel section side surface is enhanced.Type: GrantFiled: December 25, 2006Date of Patent: September 13, 2011Assignees: Nisshin Steel Co., Ltd., Takata CorporationInventors: Hirokazu Sasaki, Naofumi Nakamura, Shigeru Morikawa, Hideto Hashimoto, Takaaki Kimura, Yoshihiko Kawai
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Publication number: 20110214473Abstract: A forming device for cup-shaped hollow bodies (56) having a machine frame (2), a drive device (6), a workpiece rotary table (3) for accommodating hollow bodies (56) and a tool holder (4) for accommodating processing tools (58), wherein workpiece rotary table (3) and tool holder (4) face one another and can be turned about a rotational axis (5) in relation to one another and can be linearly moved in relation to one another along the rotational axis (5), and wherein the drive device (6) comprises first drive means (20) for providing a rotary step movement and second drive means (7, 8) for providing a cyclical linear movement between workpiece rotary table (3) and tool holder (4), in order to enable the hollow bodies (56) to be formed by means of the processing tools (58) in a plurality of consecutive processing steps.Type: ApplicationFiled: March 4, 2011Publication date: September 8, 2011Applicant: HINTERKOPF GMBHInventors: Wilfried Abt, Helmut Aichele, Carsten Brechling
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Publication number: 20110203341Abstract: A corrugate fin manufacturing apparatus includes: a die; a machining punch inserted into a concave in the die to form a rib, wherein on entering the concave, the machining punch does not contact a part of a plate-like body that has not been machined into ribs or does not cause resistance to drawing in of the unmachined part during formation of a rib even when there is contact; a mounting portion provided on the die; and a flat punch provided upstream of the machining punch, wherein when a rib is being formed, the flat punch is positioned to not contact the unmachined part or shaped to not cause resistance to drawing in of the machined part even when there is contact, and wherein after formation of a rib, the flat punch presses down the unmachined part and flattens the unmachined part in combination with the mounting portion.Type: ApplicationFiled: February 18, 2011Publication date: August 25, 2011Inventors: Toshiyuki NANAARASHI, Keiichi Morishita
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Publication number: 20110180773Abstract: A fence post cap is fabricated of thin-walled material with a cap portion above a plurality of depending walls. A first wall has an inwardly and upwardly extending thin-walled first protrusion with a first upper edge providing a mouth between the first wall adjacent the first upper edge and the first upper edge. Likewise, a second side wall, opposite the first side wall, has an inwardly and upwardly extending thin-walled second protrusion with a second upper edge providing a mouth between the second side wall adjacent the second upper edge and the second upper edge. The protrusions can be positioned so that they are opposite one another such that a shortest distance between the first wall adjacent the first protrusion and the second wall adjacent the second protrusion is greater than a shortest distance between the first wall inwardly extending portion and the second wall inwardly extending portion.Type: ApplicationFiled: December 17, 2010Publication date: July 28, 2011Applicant: 1461043 ONTARIO LIMITEDInventor: Carlos Pacheco
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Publication number: 20110179846Abstract: A method of forming a part that has areas of high strain and predicted areas of low strain from a blank and method of designing a die for forming such a part. Predicted areas of low strain are identified that are adjacent to predicted areas of high strain. A pre-forming die is designed to form the blank to provide a donor pocket in an intermediate part in a predicted low strain area that is adjacent to the predicted high strain area. The donor pocket of the intermediate part is drawn into the predicted high strain area while forming the intermediate part into the part.Type: ApplicationFiled: March 11, 2011Publication date: July 28, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Sergey Fedorovich Golovashchenko
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Publication number: 20110154878Abstract: A press molding device, which has a die 2, a punch 3 and a cushion ring constituted by a first cushion ring 5 and a second cushion ring 6, is characterized in that the first cushion ring 5 is disposed around the punch 3, the punch 3 has a void 3c which houses the second cushion ring 6, and the second cushion ring 6 is housed in the void 3c of the punch 3 and has a reinforcing structure 50 maintaining posture of the second cushion ring 6.Type: ApplicationFiled: February 15, 2006Publication date: June 30, 2011Inventors: Norihiro Takayama, Yasuhito Hanaki
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Patent number: 7954353Abstract: A method and a device for determining a quality of a metallic surface of a metallic substrate, for example a steel or steel alloy substrate, are provided. The device includes a mould, a sheet holder and a die, with which the metallic substrate is formed to produce a drawn test surface. The method and device are used to test the quality of the metallic surface of a metallic coating with a view to a later utilization, especially with a view to a later forming, wherein the metallic substrate is formed at least in-an area of a test surface, wherein a main and an additional shape change of the metallic substrate in the area of the test surface assume predetermined values that are related to the later utilization of the metallic substrate, and wherein the quality of the metallic surface is tested on the test surface after forming.Type: GrantFiled: February 23, 2007Date of Patent: June 7, 2011Assignee: ThyssenKrupp Steel AGInventors: Andreas Birkenstock, Peter Heidbüchel, Michael Linnepe
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Publication number: 20110094283Abstract: The aim of the invention is to provide a method for controlling the flow of material when deep-drawing a workpiece, which better utilizes the drawing capacity of a workpiece and produces a better shape accuracy, particularly of the bottom of the drawn part. The aim is achieved by a method in which the deep-drawing process is performed incrementally and in which at least one bead is incorporated into the flange region of the workpiece prior to each increment of the deep-drawing process. Due to this, the shape accuracy of the bottom can be improved and material accumulations in the flange zone can be prevented.Type: ApplicationFiled: March 31, 2009Publication date: April 28, 2011Applicant: THYSSENKRUPP STEEL EUROPE AGInventors: Thomas Flehmig, Klaus Göhler, Konstantinos Savvas
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Publication number: 20110089182Abstract: A container, such as a beverage or food can is provided, which includes a first sidewall, a second sidewall and a bottom portion extending between the first and second sidewalls. The material of the bottom portion is stretched relative to the first sidewall and the second sidewall to form a thinned preselected profile, such as a dome. The material of the container at or about the dome has a substantially uniform thickness. The container is formed from a blank of material, which has a base gauge prior to being formed. After being formed, the material of the container at or about the dome has a thickness less than the base gauge. Tooling and a method for selectively forming a blank of material into a container, are also disclosed.Type: ApplicationFiled: October 12, 2010Publication date: April 21, 2011Inventors: JAMES A. MCCLUNG, Paul L. Ripple
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Publication number: 20110079069Abstract: There is provided a hard film excellent in wear resistance. The hard film in accordance with the present invention includes (TiaCrbAlcLd) (BxCyNz) in terms of composition, in which the L is at least one of Si and Y, and the a, b, c, d, x, y, and z each denote the atomic ratio, and satisfy: 0.1?a<0.3; 0.3<b<0.6; 0.2?c<0.35; 0.01?d<0.1; a+b+c+d=1; x?0.1; y?0.1; 0.8?z?1; and x+y+z=1.Type: ApplicationFiled: September 15, 2010Publication date: April 7, 2011Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventor: Kenji YAMAMOTO
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Publication number: 20110061437Abstract: Disclosed is a device for producing molded articles, comprising two cross members that are interconnected using tie rods. At least one cross member (11, 12) has an annular section accommodating a pressing module. At least one passage (30) is formed between at least two supporting blocks (3) which allow the distance between the cross members (11, 12) to be adjusted.Type: ApplicationFiled: January 26, 2010Publication date: March 17, 2011Applicant: Theodor Graebener GmbH & Co KGInventor: Dieter Kapp
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Patent number: 7900492Abstract: An addendum shape portion of a panel material is drawn by a drawing portion of a press forming die by an amount equal to or less than the limit to which the panel material can be drawn, whereby a to-be-product portion of the panel material is roughly conformed to a forming face of a punch. In this state, the to-be-product portion of the panel material is stretched or drawn. Accordingly, the cross section of the to-be-product portion is uniformly changed at the minimum level, which makes it possible to produce, by press forming, a fender panel made of aluminum base alloy, which has a great plane dimension L and high quality. As a result, flexibility in the design of panel parts, which are formed by pressing the panel material into shapes, is increased.Type: GrantFiled: October 5, 2006Date of Patent: March 8, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventor: Junichi Komatsu
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Patent number: 7882721Abstract: A container bodymaker gearbox (20, 130) drives rams (60, 66) linearly by use of a hypocycloid drive that controls operation of a rotating and orbiting output shaft (40) by synchronizing the rotating and orbiting motion such that a tracking point at a predetermined radius from the shaft 40 tracks a straight line. A coaxial sleeve (124) is spaced around shaft (40) and carries an annular crank hub (140) on bearings (142). The crank hub (140) is eccentrically mounted on the sleeve (124) with the hub centerpoint positioned to track the straight line tracking point. A rotary ring (166) mounted around the periphery of the crank hub (140) supports diametrically opposed connections (176) to rams (60, 66). The ring (166) and rams (60, 66) translate on the straight-line path determined by the centerpoint, with the hub (140) rotating as required within the ring (166) to cancel rotary motion of hub (14) from the translational motion of the ring (166).Type: GrantFiled: August 15, 2007Date of Patent: February 8, 2011Inventor: Laszlo A. Gombas
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Patent number: 7841062Abstract: An upsetting method for working a metal slug of cylindrical shape and provided with a coating is disclosed. The slug is placed, lengthwise, in a sleeve the internal wall of which leaves a space with respect to the lateral surface of the slug, the slug and sleeve assembly is placed in an upsetting container, and an upsetting force is exerted on the slug on at least one of its transverse surfaces until a determined slenderness ratio has been obtained, and the slug is separated from the sleeve. The slug is upset continuously but only the slug is upset because of the space formed by the internal wall of the sleeve. The material of the sleeve, for example made of steel, is not welded or seized to the slug, which means that it need not be machined in order to separate the two after the operation.Type: GrantFiled: February 21, 2006Date of Patent: November 30, 2010Assignee: SnecmaInventors: Jean-Pierre Bergue, Gilbert Leconte
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Publication number: 20100242567Abstract: Exemplary embodiments of the invention relate to an apparatus and method for producing untrimmed container bodies from pre-cut metal blanks. The method involves cupping a metal blank by positioning the blank against an immovable draw punch comprising an annular body having an inner surface adapted to form a redraw die and an outer surface, and drawing a periphery of the blank over the outer surface of the draw punch with an encircling draw die to form a cup having an open end, a closed end and an interior. The cup is then inverted and redrawn by forcing a redraw punch into the closed end of the cup to draw the closed end through the redraw die until the cup is inverted to form an inverted cup with a closed end supported on the punch. The inverted cup while supported on the redraw punch is passed through one or more ironing rings to lengthen the inverted cup to form an untrimmed container body having a closed end.Type: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Inventors: Dubravko Nardini, Sven Lindemann, Alois Bökers
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Publication number: 20100218442Abstract: The invention relates to a deep-drawing method and a corresponding deep-drawing device. The deep-drawing device has at least two projections (112) and at least two corresponding lamellar gaps (102) in a die (106), the width and positioning (Pi) of the lamellar gaps (102) being adjustable. Folding of a metal sheet (10) is brought about by closing the lamellar gaps (102). During the subsequent deep-drawing process, the projections (112) are lowered into corresponding recesses (103). Flat metal sheets (10) as well as previously corrugated metal sheets (10) can be folded and deep drawn by means of the deep-drawing device and the deep-drawing method.Type: ApplicationFiled: September 15, 2008Publication date: September 2, 2010Inventors: Michael Matheisl, Thomas Novacek, Peter Khu
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Publication number: 20100212389Abstract: The subject matter of the invention is a method of manufacturing a hollow body (1, 10) by applying to such a hollow body blank seated in a cavity an internal pressure at increased temperature, wherein said hollow body blank is made using at least one previous forming or master shaping process, said hollow body blank differing by at least 10% in circumferential length on its circumference.Type: ApplicationFiled: April 3, 2009Publication date: August 26, 2010Inventor: Karl Kipry
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Publication number: 20100206692Abstract: The escalator step (1) or the travelator plate comprises a step skeleton (2) or a plate skeleton which carries at least one tread element (22). A first cheek (3), a central cheek (4), a second cheek (5), a carrier (6), a bridge (7) and a bracket (8) form the step skeleton (2). For each cheek (3, 4, 5), a sheet metal blank is stamped from a sheet metal strip and is subsequently formed into the cheek by means of deep drawing processes. The carrier (6), bridge (7) and bracket (8) connect the cheeks (3, 4, 5), wherein the components are welded by means of spot welding processes. The carrier (6), bridge (7) and bracket (8) are produced endlessly from sheet metal coil by means of a rolling deformation process and are cut to length depending on the step width.Type: ApplicationFiled: September 26, 2008Publication date: August 19, 2010Inventors: Michael Matheisl, Thomas Illedits, Thomas Novacek, Gerhard Kleewein
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Publication number: 20100172606Abstract: The invention relates to a method for the production of a roller bearing (5) which does not require machining, wherein the roller bearing (5) has a bearing inner ring and a bearing outer ring (3a?, 3b?) and at least one rolling body row (9) guided between said rings in raceways (8a, 8b). In order to be able to implement the production of the bearing rings (3a?, 3b?) including the raceways (8a, 8b) for the rolling bodies (9) according to a forming method which does not involve machining, in a manner which is more cost-effective with respect to known production methods, a ring element (3) is initially produced from a sheet metal blank (1) by means of dies and pressure forming, the ring element having a section (3a) lying radially on the inside, a ring-shaped section (3b) lying radially on the outside, and having a central recess (4), raceways (8a, 8b), and preferably a set breaking point (6) between the two ring-shaped sections (3a, 3b).Type: ApplicationFiled: February 7, 2008Publication date: July 8, 2010Applicant: SCHAEFFLER KGInventors: Erich Lunz, Ralph Painta, Peter Schuster, Horst Doeppling
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Publication number: 20100139357Abstract: A method for deep drawing blanks, which are punched out of sheet metal that is painted or coated with film material, for example made of steel or aluminium, into flangeless moulded blanks, wherein the blanks are formed to a crucible-shaped part, with a flangeless cylindrical edge, around a drawing core by means of a drawing bell of a drawing die, and a predetermined spring force is applied to the side of the edge opposite to the drawing bell during the forming of the edge of the blanks by means of a blank holder, characterised in that the spring force applied to the blank holder is spontaneously reduced substantially to zero shortly before the end of the drawing process.Type: ApplicationFiled: November 11, 2007Publication date: June 10, 2010Inventor: Thomas Haar
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Patent number: 7726162Abstract: Method wherein a) a container (1, 6) is placed in a two halves mould (2) having an internal shaped wall (21), b) an internal pressure P of a fluid is build up so as to shape the skirt (12), is characterized in that an external pressure P?of a fluid is applied in an upper space (101) contiguous to an external or upper surface (100) of the open top end (10) and/or in a lower space (141) contiguous to an external or lower surface (140) of the shaped bottom end (14), so as to have, during the span of time ?t, a pressure difference ?P|P?P?1 low enough to prevent any distortion of the shaped open top end (10) and/or the shaped bottom end (14), so as to form a shaped metallic container (1?, 6?). An apparatus for carring out the method is also disclosed.Type: GrantFiled: April 13, 2005Date of Patent: June 1, 2010Assignee: Impress Group B.V.Inventors: Guy Druesne, Cornelis Verboom