Forcing Work Into Or Within Closed Die; E.g., Forging Patents (Class 72/352)
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Publication number: 20130255345Abstract: Disclosed is a fin processing apparatus including an upper pressing die (1) and a lower pressing die (2) placed apart from each other and capable of coming close to and away from each other, a corrugating mechanism (3) disposed between the pressing dies (1, 2) for continuously forming a plurality of consecutive corrugated members (Fa) from a flat plate (Fo) which is a workpiece material, the consecutive corrugated member (Fa) having a predetermined number of crest portions, and a restriking mechanism (4) disposed between both pressing dies (1, 2) for simultaneously restrike-forming a plurality of crest and trough portions of the consecutive rectangle member (Fb) from the consecutive corrugated member (Fa). The corrugating mechanism (3) and the restriking mechanism (4) are provided integrally.Type: ApplicationFiled: April 1, 2013Publication date: October 3, 2013Applicant: CALSONIC KANSEI CORPORATIONInventors: Teruhisa KANEDA, Minoru Tsuchiya, Makoto Kobayashi
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Publication number: 20130255346Abstract: A metal-stamping die or tool is provided. Another aspect uses an additive manufacturing machine and material to create a die. A further aspect provides a method of making a die from an additive manufacturing process and/or using such a die to stamp a metal part, such as a fastener or clip.Type: ApplicationFiled: March 12, 2013Publication date: October 3, 2013Applicant: A. Raymond et CieInventors: Michael Richard Danby, Jason F. Reznar
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Publication number: 20130240095Abstract: High temperature heat treatable aluminum alloys that can be used at temperatures from about ?420° F. (?251° C.) up to about 650° F. (343° C.) are described. The alloys are strengthened by dispersion of particles based on the L12 intermetallic compound Al3X. These alloys comprise aluminum; silicon; at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, and niobium. Magnesium and copper are optional alloying elements.Type: ApplicationFiled: April 30, 2013Publication date: September 19, 2013Applicant: United Technologies CorporationInventor: Awadh B. Pandey
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Publication number: 20130239645Abstract: A method of producing an L-shaped product (10) which includes an L-shaped flat top wall (12), an inside wall (14) extending and connected along an inside edge (12c) of the top wall, and an outside wall (16) extending and connected along an outside edge (12d) of the top wall, each of the inside and outside walls being terminated by flange (18, 20) substantially parallel to the top wall, is disclosed. The method comprises the steps of: providing sheet metal material; providing a drawing die assembly; and stamping the sheet metal material by the drawing die assembly to produce an intermediate product. The method further comprises the steps of: providing a bending die assembly; and stamping the intermediate product by the bending die assembly to produce an L-shaped product completed.Type: ApplicationFiled: November 24, 2011Publication date: September 19, 2013Inventors: Yasuharu Tanaka, Takashi Miyagi, Misao Ogawa, Shigeru Uchiyama, Takatoshi Sasahara
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Publication number: 20130205863Abstract: A forming tool and a method for hot forming and partially press hardening a workpiece, wherein the workpiece is heated prior to forming and is subsequently hot formed in a forming tool including a die, a punch, and a cooling device. When the forming tool is closed, the contact between the workpiece and the contact surfaces of the die and the punch of the forming tool is interrupted by moving apart a movable die part and a movable punch part. The die includes a first die part and at least one second die part which is movable relative to the first die part. The punch includes a first punch part and at least one second punch part which is movable relative to the first punch part. The at least one movable second die part and the at least one movable second punch part interact with an opening device.Type: ApplicationFiled: July 6, 2011Publication date: August 15, 2013Applicant: GMF UMFORMTECHNIK GMBHInventor: Siegfried Loesch
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Patent number: 8505352Abstract: The invention relates to a method for producing hollow profile-members having a longitudinal flange, wherein a plate which is arranged between the stamp and the first die being preshaped by introducing a stamp into a first die to form an U-shaped profile-member having a first member and a second member, and wherein the U-shaped profile-member being shaped with a second die to form an O-shaped profile-member having a longitudinal flange. In one aspect, the plate is preshaped to form the U-shaped profile-member, a longitudinal flange member portion is shaped in at least the first member and the longitudinal flange member portion is constructed during the shaping of the U-shaped profile-member to form an O-shaped profile-member substantially in a shape-retaining manner to form a portion of the longitudinal flange.Type: GrantFiled: November 14, 2012Date of Patent: August 13, 2013Assignee: ThyssenKrupp Steel Europe AGInventors: Thomas Flehmig, Michael Brüggenbrock, Jörg Gorschlüter
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Publication number: 20130199258Abstract: There is provided a useful method for producing a press-formed product without making the structure of a press tool complicated, which product has favorable formability in a level so as to be able to be produced by deep drawing, and which product is produced by press-forming a thin steel sheet with a punch and a die, in which the thin steel sheet is heated to a temperature not lower than an Ac3 transformation point thereof, and the press-forming is then started, wherein the forming is carried out so that a temperature difference in the thin steel sheet is adjusted to be not higher than 200° C. at a stage when the thin steel sheet has reached one third of a forming height.Type: ApplicationFiled: September 30, 2011Publication date: August 8, 2013Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Junya Naitou, Keisuke Okita, Shushi Ikeda
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Patent number: 8499456Abstract: A method for producing a housing for a hydrodynamic bearing apparatus includes forming a housing 7 which has a cylindrical shape and which includes a fixing face 7c for fixing the outer circumferential surface 8b of a bearing sleeve 8, and axial circulation grooves 7d for bringing both end faces 8c, 8d of the bearing sleeve 8 into circulation on the inner periphery. The method includes providing a groove molding portion 18a2 on the outer circumference of a rod 18 which serves as a forming mold for the inner periphery of the housing 7, and forming the circulation grooves 7d of the housing by forging with the groove molding portion 18a2 of the mold. Moreover, after a sealing face 107d and a cylindrical outer circumferential surface 107e provided on the outer periphery of the housing 107 are formed by forging, an inner circumferential surface 107c is formed by forging.Type: GrantFiled: August 16, 2011Date of Patent: August 6, 2013Assignee: NTN CorporationInventors: Nobuyoshi Yamashita, Toshiyuki Mizutani, Tetsuya Kurimura, Kiyoshi Shimizu, Yoshitaka Kabata, Masatoshi Tanigawa, Eiichi Fujita, Koji Yamagata, Masato Utiumi
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Patent number: 8499606Abstract: In accordance with various embodiments, plates are formed via a plurality of upset-forging and forging-back cycles followed by a plurality of rolling passes.Type: GrantFiled: November 21, 2011Date of Patent: August 6, 2013Assignee: H.C. Starck Inc.Inventor: Peter R. Jepson
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Publication number: 20130192330Abstract: A die for forging a toothed section of a gear rack of a steering device, including a first die part (9) having a first molding recess (11) for molding the toothing and a second die part (10) having a second molding recess (12), which has the shape of the back area of the gear rack opposite the toothing. The die parts (9, 10) can be moved toward each other in a closing direction (13) into an end position, in which the die parts have a distance (s) from each other, wherein a main cavity (14) is formed between the die parts (9, 10) in a region of the molding recesses (11, 12) of the die parts (9, 10), the main cavity being open on opposite sides to secondary cavities (16, 17), which lie in respective regions between the first and second die parts (9, 10).Type: ApplicationFiled: July 2, 2011Publication date: August 1, 2013Applicant: THYSSENKRUPP PRESTA AKTIENGESELLSCHAFTInventors: Jurgen Dohmann, Christoph Westerkamp
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Publication number: 20130197610Abstract: A titanium alloy metal sheet is provided and heated to a superplastic forming temperature. A die has a plurality of housing forming areas each corresponding to one of the medical device housing portions. The heated titanium alloy metal sheet is forced onto the die and over each one of the plurality of housing forming areas, thereby superplastically forming a workpiece comprising a plurality of integrally formed implantable medical device housing portions.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: GREATBATCH, LTD.Inventors: Daniel N. Kelsch, Alexander K. Smith, Francis J. Toal
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Patent number: 8491398Abstract: A manufacturing method for a tripod type constant velocity universal joint includes, when forging a raw-shaped material corresponding to each of three journals into a journal shape using a molding surface of a die and in a state where a relief portion is provided on a raw-shaped-material-leading-end-side of the die, molding an outer peripheral surface of the raw-shaped material into a projected round shape. The molding occurring with a tapered surface formed on the molding surface with which the outer peripheral surface of the raw-shaped material is held in contact and a recessed round surface formed between the molding surface and the tapered surface.Type: GrantFiled: April 2, 2010Date of Patent: July 23, 2013Assignee: NTN CorporationInventors: Junichi Izumino, Kenji Konaka, Hiroshi Murakami, Akira Sera, Jiahua Miao, Shunsuke Makino
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Publication number: 20130167611Abstract: A raceway member (6) of a wheel support hub unit, having wheel or vehicle body fixing portions (7) extending radially outward from a solid or hollow shaft portion, and a wheel or vehicle body positioning cylindrical portion (9) extending concentrically with the shaft portion, the fixing portion (7) being formed by the cold side extrusion so that the fixing portion is integral with the shaft portion (5).Type: ApplicationFiled: February 26, 2013Publication date: July 4, 2013Applicant: NSK, Ltd.Inventors: Kazuto KOBAYASHI, Kiyoshi OOTUKA, Yuu YASUDA
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Patent number: 8464570Abstract: A method of making an S-shaped bent edge component comprising: placing in order an upper layer of metal base plate and a lower layer of metal base plate as well as a middle layer of heat-isolating materials in between; fixing the metal base plates with the heat-isolating materials; forming J-shaped edges on the base plates by stamping, and the J-shaped edges of the base plates are perpendicular to a horizontal portion of the metal base plates; each of the J-shaped edges of the base plates has an outwardly bent curve with a crown and a curve end; by means of a stamping step performed by an upper mold M1 with a concave surface and a flat surface and a lower mold M2 with a flat surface, the concave surface of the mold M1 exerts lateral force onto the curve ends so that the J-shaped edges of the base plates inwardly bend towards the upper metal base plate.Type: GrantFiled: December 17, 2008Date of Patent: June 18, 2013Inventor: Xuejun Cui
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Publication number: 20130143690Abstract: The present invention provides a golf club improved in ball hitting sound and ball hitting feeling and its manufacturing method. First, low-carbon steel is subjected to press processing of hot forging to form portions of irregularity on the face on a side of a hitting surface. Then, when there are projecting portions in the portions of irregularity, only the projecting portions are subjected to press processing of cold forging to crush the projecting portions to be flat. Then, the surface is slightly smoothed by machining to be flat and crystal grains at the portions of irregularity and the area therearound are pressed to be fined, thereby enhancing the hardness and forming fiber flows parallel to the hitting surface. A part of the hardened face becomes harder than the hardness of a base material before press processing by 10% or more within a range of 1 mm in a depth.Type: ApplicationFiled: November 26, 2012Publication date: June 6, 2013Applicant: K. K. ENDO SEISAKUSHOInventor: K. K. ENDO SEISAKUSHO
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Publication number: 20130137532Abstract: A co-forged iron type golf club is disclosed. More specifically, the present invention discloses a co-forged iron type golf club with the body portion made out of a first material and at least one weight adjustment portion monolithically encased within the body portion of the co-forged iron type golf club head without the need for secondary attachment or machining operations. The present invention creates of an iron type golf club head from a pre-form billet that already contains two or more materials before the actual forging process resulting in a multi-material golf club head that doesn't require any post manufacturing operations such as machining, welding, swaging, gluing, and the like.Type: ApplicationFiled: November 28, 2011Publication date: May 30, 2013Inventors: Uday V. Deshmukh, Ronald K. Hettinger, Jonathan Hebreo
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Publication number: 20130091919Abstract: The invention relates to a method for producing hollow profile-members having a longitudinal flange, wherein a plate which is arranged between the stamp and the first die being preshaped by introducing a stamp into a first die to form an U-shaped profile-member having a first member and a second member, and wherein the U-shaped profile-member being shaped with a second die to form an O-shaped profile-member having a longitudinal flange. In one aspect, the plate is preshaped to form the U-shaped profile-member, a longitudinal flange member portion is shaped in at least the first member and the longitudinal flange member portion is constructed during the shaping of the U-shaped profile-member to form an O-shaped profile-member substantially in a shape-retaining manner to form a portion of the longitudinal flange.Type: ApplicationFiled: November 14, 2012Publication date: April 18, 2013Inventors: Thomas Flehmig, Michael Brüggenbrock, Jörg Gorschlüter
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Patent number: 8413479Abstract: A forging die tool set defines a cavity and includes a core rod in the cavity for shaping a void in a work piece. The core rod extends in a direction in which the work piece is introduced, compressed, and ejected from the cavity. The core rod includes an upper portion and a lower portion. The upper portion has a cross sectional shape that forms a certain shape in the work piece and a radially tapered section that tapers toward the lower portion of the core rod. The lower portion also has a cross sectional shape that forms a certain shape in the work piece, and the cross sectional shape of the upper portion differs from the cross sectional shape of the lower portion, the lower portion being a more wear resistant shape characterized by larger radii and the upper portion being a finishing shape with smaller radii for shaping the final form of the forged work piece.Type: GrantFiled: October 17, 2008Date of Patent: April 9, 2013Assignee: GKN Sinter Metals, LLCInventor: Henry J. Knott
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Publication number: 20130061647Abstract: Methods and apparatuses for manufacturing a press-molded product with a preform including a pair of side wall portions and a connecting wall portion are taught. The preform is pressed with a mold until at least one wall portion is bent toward a gap within the mold, and a plate thickness is increased at the at least one wall portion and the connecting wall portion by pressing other wall portions.Type: ApplicationFiled: November 12, 2012Publication date: March 14, 2013Applicant: NISSAN MOTOR CO., LTD.Inventor: Nissan Motor Co., Ltd.
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Publication number: 20130056085Abstract: A rupture disk (20), along with associated methods, is disclosed. More particularly, a miniaturized rupture disk is disclosed, comprising a transition area (23) configured to determine a pressure at which the rupture able portion will rupture. A method for forming a rupture disk is also disclosed, wherein a radius (R) of a transition area is configured to set the burst pressure of the rupture disk. A rupture disk having an indent at its apex (24) and a circular line of weakness configured to improve opening performance is also disclosed. Additionally, a method of relieving pressure in a pressurized system is disclosed, wherein a set of rupture disks is provided, wherein each rupture disk in the set has a different radius of transition area. A rupture disk may be selected from the set and installed based on a burst pressure set by the radius of transition area.Type: ApplicationFiled: September 29, 2010Publication date: March 7, 2013Inventors: John Tomasko, Paul Goggin, Geof Brazier
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Publication number: 20130057373Abstract: A molding system with inserts placed on the die and/or the punch of the mold, which allows one to obtain molded products with co-molded ferromagnetic inserts on the surfaces thereof.Type: ApplicationFiled: May 10, 2011Publication date: March 7, 2013Inventors: Mauro Masiero, Antonio Sgaravatti
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Patent number: 8387246Abstract: A low-cost shaft member for hydrodynamic bearing apparatuses restores the pressure balance in a thrust bearing gap formed on both axial sides of the flange portion in an early stage. A shaft material integrally having a shaft portion and a flange portion with a through-hole between both end faces of the flange portion is formed in a common forging step. As a result, the through-hole is formed to open to an inner diameter side of the bearing gaps avoiding the thrust bearing gaps formed on both end faces of the flange portion of the shaft member as a finished product.Type: GrantFiled: April 20, 2011Date of Patent: March 5, 2013Assignees: NTN Corporation, Fukui Byora Co., Ltd.Inventors: Nobuyoshi Yamashita, Natsuhiko Mori, Toshiyuki Mizutani, Takeshi Shimazaki, Koji Yamagata
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Publication number: 20130043677Abstract: Described is a sealing system for use at high pressure. End-face seals minimize the sealing radius and therefore allow various fittings—including known ferrule fittings—to be used in high-pressure systems. End-face seals at such high pressure may require smooth surfaces. In order to reduce cost, an end-face preparation tool forges a dimple into the end face to mechanically deform and smooth the surface.Type: ApplicationFiled: May 2, 2011Publication date: February 21, 2013Inventor: James David Gibson
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Publication number: 20130039689Abstract: A guy adapter includes a main body having first and second ends. A socket member is connected to the first end. An eye member is connected to the second end. A non-integral pulling eye is slidably mounted on the main body. The socket member is forged to the first end of the main body. A pulling eye is slidably disposed on the main body. The eye member is forged to the second end of the main body. Accordingly, the guy adapter is formed having a non-integral pulling eye slidably mounted thereon.Type: ApplicationFiled: August 9, 2011Publication date: February 14, 2013Applicant: HUBBELL INCORPORATEDInventors: Jacob C. Atchley, Kelly S. Hawkins, Tim Staelens
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Patent number: 8365573Abstract: The present invention includes a bar having a maximum cross section region smaller than a minimum cross section region of a hollow portion of a pipe P, and projected portions mounted along an axial direction of the bar and including a projected portion with maximum extent Hb, extent Ha of the projected portion positioned at a leading end side of the bar is set to be smaller than extent Hb of the projected portion positioned at a center side in the axial direction, and extent Hc of the projected portion positioned at a base end side of the bar is set to be less than or equal to extent Hb of the projected portion.Type: GrantFiled: February 21, 2008Date of Patent: February 5, 2013Assignee: Neutron Co., Ltd.Inventor: Takashi Yamawaki
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Publication number: 20130025341Abstract: A high pressure tube compression fitting/flared fitting for use in combination with a thick-walled tube and a connection body wherein a sleeve is in engagement with a thick-walled tube. The sleeve is generally cylindrically shaped with the exterior thereof coated and then etched. The sleeve includes a sharp annular biting portion engaging the thick walled tube. The sleeve further includes an inner annular symmetric concavity which engages the thick-walled tube upon deformation thereof. The thick-walled tube includes a flared end portion. A gland about the thick-walled tube engages the sleeve forcing it into engagement with the frusto-conical portion of the connection body coupling the tube, tube fitting and connection body together. The flared end of the thick-walled tube interengages and seals the frusto-conical portion of the connection body.Type: ApplicationFiled: August 27, 2012Publication date: January 31, 2013Applicant: PARKER-HANNIFIN CORPORATIONInventors: SAMUEL D. CIPRICH, MATTHEW T. BERNOSKY
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Publication number: 20130025338Abstract: A tube is made by first making a tubular billet with a central cavity by a primary shaping operation. Then the billet is fed to a radial forging machine where it is forged into the tube by decreasing an outer diameter of the billet and a radial thickness of a wall of the billet.Type: ApplicationFiled: July 27, 2012Publication date: January 31, 2013Inventors: Ulrich VOHSKAEMPER, Paul Nieschwitz
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Publication number: 20130019649Abstract: Any of various features of a workpiece are forged by a common set of tools. The feature is incrementally forged as the tool set is moved to successive forging locations on the surface of the workpiece. One of the tools is used to plasticize and extrude a portion of the workpiece while one or more of the other tools are used to form dams that contain and shape the extruded portions.Type: ApplicationFiled: September 25, 2012Publication date: January 24, 2013Inventors: Kevin T. Slattery, James B. Castle, Christopher S. Huskamp
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Publication number: 20130004911Abstract: Proposed is a method and apparatus for forming an orthodontic bracket for use with an orthodontic archwire involving shaping a length of material to form at least two enlarged portions and a base member, the base member being intermediate two arm members and the respective enlarged portions having a thickness that is thicker than the thickness of the base member; bending the length of material at the respective enlarged portions; and coining the respective enlarged portions, such that portions of the arm members define a channel to receive a portion of the orthodontic archwire.Type: ApplicationFiled: December 28, 2011Publication date: January 3, 2013Inventor: Atsushi DANNO
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Publication number: 20130000374Abstract: A forging die and tooling stack consist of a top and bottom die set positioned on a pusher plate in a die holder. Prior art die and tooling stack designs with rectangular axial cross sections concentrated loading toward the radial center of the stack. By contouring the top surface of the pusher plate and the bottom surface of the die holder, loading at the bottom of the stack can be redistributed to reduce non-uniform loading of components beneath the stack in the load train.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: United Technologies CorporationInventors: Albert Rabinovich, John Richard Palitsch, Vincent Joseph Rovinski
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Patent number: 8341997Abstract: The present invention is a method of forging a bevel gear, comprising: a first forging step in which a first intermediate article is obtained by pressing a blank, such that there is formed a preliminary one-end recessed part that is axially recessed in an axis-center part on an axially one-end side and/or a preliminary other-end recessed part that is axially recessed in an axis-center part on an axially other-end side; a second forging step in which a second intermediate article is obtained by pressing the first intermediate article in a hermetically sealed cavity space defined by a first die and a second die that is positioned opposedly to the first die in the axial direction, such that there are formed: a body part including a tooth part on a radially circumference thereof and a one-end recessed part that is axially recessed in an axis-center part on the axially one-end side; and a projecting part projecting from a rear surface part of the body part on the axially other-end side; and a through-hole formingType: GrantFiled: May 22, 2009Date of Patent: January 1, 2013Assignee: Musashi Seimitsu Industry Co., Ltd.Inventor: Yasuyoshi Matsui
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Patent number: 8342969Abstract: A tripod-type constant-velocity universal joint has a journal raw profile with reduced weight and a reduced number of manufacturing steps. A leading end corner portion of the journal raw profile is held with use of a die and forged. By the forging, at the part including an elliptically longitudinal side relatively on a leading end portion side of an outer peripheral surface of each of journals, edge portions reducing a lateral sectional area of each of the journals toward a leading end side thereof are formed, and tapered surfaces are formed on the leading end side of the edge portions. Centering on each of the journals is performed by causing two points on an elliptically longitudinal side of the edge portions to abut against a centering jig.Type: GrantFiled: July 29, 2009Date of Patent: January 1, 2013Assignee: NTN CorporationInventors: Junichi Izumino, Kenji Konaka
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Publication number: 20120328472Abstract: A forged devitrified aluminum alloy of forging devitrified aluminum alloys having a desired shape. The alloy is forged in a plane strain forging die with the axis of extrusion being parallel to the direction of forging.Type: ApplicationFiled: June 27, 2011Publication date: December 27, 2012Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Thomas J. Watson, Venkatarama K. Seetharaman
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Publication number: 20120325036Abstract: A ball screw is provided in which an outer circumferential formation is formed at a portion facing a ball circulating passage out of outer circumferential surface of a nut. The ball screw includes: a screw shaft having on its outer circumferential surface a screw groove; a nut having on its inner circumferential surface a screw groove facing the screw groove; a plurality of balls rollably loaded in a spiral ball rolling passage formed by both screw grooves; and a ball circulating passage to return the balls from a start point to an end point of the ball rolling passage for recirculation. The ball circulating passage is a concaved groove formed by concaving a groove on a part of the cylindrical inner circumferential surface of the nut by plastic working. Then, a flange is integrally provided at a portion facing the ball circulating passage and the screw groove.Type: ApplicationFiled: March 16, 2011Publication date: December 27, 2012Applicant: NSK Ltd.Inventors: Toru Harada, Koji Hashimoto, Tsuyoshi Ito, Tomofumi Yamashita, Naoya Aoki
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Patent number: 8312856Abstract: A method of making a forged piston includes the steps of providing a workpiece made of an aluminum alloy, a magnesium alloy or a titanium alloy; and forging the workpiece with stress applied thereto in a predetermined direction (forging direction). The method further includes, before the step of forging, the step of working the workpiece such that fiber flows of the workpiece are nonparallel to the predetermined direction.Type: GrantFiled: June 22, 2007Date of Patent: November 20, 2012Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Hiroshi Yamagata, Hirotaka Kurita
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Publication number: 20120279273Abstract: A product including a top surface part, a vertical wall part connected to an end of the top surface part and a corner part interposed between the top surface part and the vertical wall part is manufactured by flowing a material of the corner part toward the top surface part while applying a pressing force on a workpiece.Type: ApplicationFiled: April 26, 2012Publication date: November 8, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Takashi Tsuchiya, Teruo Kamada, Daisuke Yamamoto, Kaoru Hirotani, Kenji Matsutani
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Publication number: 20120279351Abstract: A heat-resistant superalloy having chromium, aluminum, cobalt, titanium, and ruthenium added thereto as main components, and having a subcomponent(s) optionally added thereto, the remainder, excluding the main components and the subcomponent(s), comprising nickel and an impurity inevitably contained, wherein the amount of the chromium added is 2 to 25% by mass, the amount of the aluminum added is 0.2 to 7% by mass, the amount of the cobalt added is 19.5 to 55% by mass, the amount of the titanium added is [0.17×(% by mass for cobalt?23)+3] to [0.17×(% by mass for cobalt?20)+7] % by mass (with the proviso that the amount of the titanium added is 5.1% by mass or more), and the amount of the ruthenium added is 0.1 to 10% by mass.Type: ApplicationFiled: November 18, 2010Publication date: November 8, 2012Applicant: National Institute For Materials ScienceInventors: Yuefeng Gu, Hiroshi Harada, Toshiharu Kobayashi
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Publication number: 20120279678Abstract: Processes and methods related to producing, processing, and hot working alloy ingots are disclosed. An alloy ingot is formed including an inner ingot core and an outer layer metallurgically bonded to the inner ingot core. The processes and methods are characterized by a reduction in the incidence of surface cracking of the alloy ingot during hot working.Type: ApplicationFiled: June 26, 2012Publication date: November 8, 2012Applicant: ATI PROPERTIES, INC.Inventor: Ramesh S. Minisandram
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Publication number: 20120255175Abstract: A method for producing a hollow engine valve is disclosed which involves gradually reducing the size of the outer diameter and inner diameter of a hollow shaft of a semi-finished product sequentially inserting the hollow shaft into a plurality of molding holes having different hole shapes so as to gradually extend the length of the hollow shaft, and forming the hollow shaft into a predetermined shape by sequentially performing a drawing process. The semi-finished product is subjected to heat treatment such that the hardness thereof is equal to or less than a predetermined hardness, and the maximum thickness between the hollow shaft and an umbrella portion connected to the bottom edge of the hollow shaft is formed to be thicker than the thickness of the hollow shaft by means of a molding hole of a die which is adjusted to have a specific length and maximum inner diameter.Type: ApplicationFiled: September 24, 2010Publication date: October 11, 2012Applicants: YOSHIMURA COMPANY, MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hirokazu Morii, Hyoji Yoshimura
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Publication number: 20120247172Abstract: To present a manufacturing apparatus of a plate-like tooth profile member capable of forging and forming in one process by using a closed type die, being hardly accompanied by burrs due to plastic changes in the circumferential direction and in the axial direction of the material of the plate-like tooth profile member.Type: ApplicationFiled: November 19, 2010Publication date: October 4, 2012Inventors: Tadashi Okumura, Nobuyasu Nishihata, Kenji Tasaki
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Patent number: 8276427Abstract: A frame of a metal-forming press having upper and lower traverses interconnected by vertical columns having upper and lower ends is provided with respective sets each of a plurality of identical tension bolts at each end of each of the columns. The traverses are formed at each end of each column with an array of throughgoing holes through each of which a respective one of the bolts extends, and the columns have opposite ends each formed with an identical array of blind threaded bores each in turn aligned with a respective one of the throughgoing holes. Each bolt has an inner end seated in a respective on of the bores of the respective column end and an outer end bearing inwardly on a face of the respective traverse.Type: GrantFiled: March 10, 2010Date of Patent: October 2, 2012Assignee: SMS Meer GmbHInventor: Walter Kirchner
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Publication number: 20120222463Abstract: A method for manufacturing an insert pocket of a cutter body is disclosed. First, the insert pocket of the cutter body a rough milling process. Then, the insert pocket is forged using a forging tool having a shape that generally conforms to the shape of the insert pocket. Then, the insert pocket undergoes a finish milling process to qualify the pocket geometry without removing the majority of the forge-enhanced pocket material. The insert pocket can be optionally heated prior to the forging step. The grain orientation of the inset pocket is compressed by the forging process to increase the impact and fatigue resistance of the insert pocket.Type: ApplicationFiled: March 4, 2011Publication date: September 6, 2012Applicant: KENNAMETAL INC.Inventor: Kevin Michael Gamble
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Patent number: 8256119Abstract: A method of manufacturing forks for lift trucks comprises the steps of: providing a straight metal bar designed to make the fork, heating the bar at a segment thereof where the fork knee is to be formed, bending the bar at the heated segment in order to form the knee by carrying out bending in a closed-die press provided with containment walls that, when bending has been completed, enclose the knee so as to define the surface contours of the latter.Type: GrantFiled: April 8, 2008Date of Patent: September 4, 2012Assignee: Bolzoni S.p.A.Inventor: Emilio Bolzoni
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Publication number: 20120216589Abstract: A pretensioner is provided, of which the cylinder, including a restriction portion, can be inexpensively formed, the cylinder having the restriction portion for positioning a gas generation unit to be mounted to a cylinder, and a pretensioner manufacturing method for manufacturing such a pretensioner is provided. In the pretensioner, since the cylinder is molded by forging, an inexpensive material compared with a stainless pipe member can be used for the molding. In addition, since the positioning portion can be molded during forging-molding for molding the entire cylinder, cost can be reduced even in this regard.Type: ApplicationFiled: May 2, 2012Publication date: August 30, 2012Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventor: Taku YAMADA
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Publication number: 20120216643Abstract: A method for manufacturing a toothed part from a cylindrical blank using a forming die. When forming a toothed portion on a radially outer section of the blank by applying a load in the axial direction of the blank to a radially center section of the blank while constraining a portion of an outer circumferential surface of the blank such that a constituent material of the blank flows radially outward, the constituent material of the blank at an intermediate section between the center section and the outer section flows in the axial direction toward a depressed portion of the forming die to form a projection portion. When the load is at maximum, a space is provided between the toothed portion and the forming die, and a space is provided between the projection portion and the forming die.Type: ApplicationFiled: February 3, 2012Publication date: August 30, 2012Applicant: AISIN AW CO., LTD.Inventor: Hiromu SAKAMAKI
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Publication number: 20120216644Abstract: When forming a toothed portion on the outer section of a blank by contacting a tooth profile-forming portion of a forming die with a curved portion of the blank, the first projection of the blank is accommodated in a first depression, and a load is applied axially to a center section of the blank so a material of the blank flows radially outward. The material of the blank at the first projection flows in the axial direction to inside the first depression, and the material of the blank at an intermediate section between the center and the outer section flows in axially to inside a second depression to form a second projection. When the load is maximized, a space is provided between a toothed portion and the tooth profile-forming portion, between the first projection and the forming die, and between the second projection and the forming die.Type: ApplicationFiled: February 3, 2012Publication date: August 30, 2012Applicant: AISIN AW CO., LTD.Inventors: Hiromu SAKAMAKI, Ariyoshi TERAO, Toshifumi NAGATA
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Patent number: 8252129Abstract: The invention relates to a method for transforming steel blanks. The invention in particular relates to a method for transforming a steel blank comprising kneading in order to obtain very good mechanical properties. The obtained products may notably be used for forming a pressure device component.Type: GrantFiled: August 2, 2007Date of Patent: August 28, 2012Assignee: Aubert & DuvalInventors: Gérald Gay, Bruno Gaillard-Allemand, Dominique Thierree
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Publication number: 20120210765Abstract: Disclosed is a method for producing a mechanical part superior in rolling fatigue life. The mechanical part includes a rolling portion for a rolling element to roll along an inner diameter surface of an annular workpiece material subjected to cold forging. The method includes performing cold forging by applying a hydrostatic stress to the inner diameter surface of the annular workpiece material on which the rolling portion is to be formed, thereby forming the rolling portion on the inner diameter surface of the annular workpiece material for the rolling element to roll therealong and increasing an inner diameter of the annular workpiece material other than the rolling portion, so as to provide an annular mechanical part including the rolling portion superior in rolling fatigue life.Type: ApplicationFiled: August 24, 2010Publication date: August 23, 2012Applicant: SANYO SPECIAL STEEL CO., LTD.Inventors: Toshihusa Nakamizo, Kazuya Hashimoto
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Publication number: 20120214612Abstract: An iron golf club is one made of metal material, which is manufactured integrally through press working and gives dedication to improvement of golf club design. The head (1) has a concave portion (4) surrounded by a convex portion (6) in the backside portion (3) behind the face portion (2). Treatment for making a mirror surface is applied to the bottom portion (5) of this concave portion through press working with a fixed die (11) having a surface roughness finer than the mirror surface for which treatment for making a mirror surface is to be performed and a movable die (10). Press working of this bottom portion can be also performed through treatment for making a mirror surface with a liner member (17).Type: ApplicationFiled: February 16, 2012Publication date: August 23, 2012Applicant: K. K. ENDO SEISAKUSHOInventors: Rui Kondo, Tamotsu Hasegawa
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Publication number: 20120198906Abstract: A method for manufacturing cold-gorged wing bolts uses short basic rods cut from a solid linear metal material Under the conditions of maintaining the combination capacity of metal material organization to possess close-fitting strength, the short basic rods are cold-forged and compressed into shape through several steps of shaping and trimming and then treated with thread rolling to finish wing bolts. By so designing, the wing bolts can be manufactured simply and quickly, able to lower cost, obtain better quality and production capacity and thus greatly elevate economic gain.Type: ApplicationFiled: February 8, 2011Publication date: August 9, 2012Inventor: FENG-LONG WU