Means For Molding Powdered Metal Patents (Class 425/78)
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Patent number: 8419400Abstract: Provided is an apparatus that includes a molding die for producing a sintered body. The molding die is configured for cold isostatic pressing and includes a knockdown mold frame comprised of plural frame members and a bottom plate provided in contact with the knockdown mold frame. An upper punch is provided to be movable along the inner surface of the knockdown mold frame. The frame members configured to be movable relative to each other to accommodate an expansion of a green body which takes place at the time of reducing the pressure after the completion of pressing.Type: GrantFiled: January 27, 2006Date of Patent: April 16, 2013Assignee: Tosoh CorporationInventors: Kenichi Itoh, Masami Mesuda, Hitoshi Nagayama, Tetsuo Shibutami, Shunsuke Yatsunami
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Publication number: 20130089749Abstract: An apparatus for increasing the bulk density of metal powder may include a sealed chamber, a nozzle, and a target. The sealed chamber may include an inert environment. The nozzle may be coupled to an inert gas source and may be configured to introduce raw metal powder into a flow of the inert gas for discharge as a cold spray mixture of the raw metal powder and the inert gas into the chamber. The target may be housed within the sealed chamber and may be configured to receive an impact of the cold spray mixture. The nozzle and the target may be configured to flatten the raw metal particles into flattened metal particles in response to the cold spray mixture impacting the target.Type: ApplicationFiled: October 8, 2011Publication date: April 11, 2013Applicant: THE BOEING COMPANYInventor: Kevin Thomas Slattery
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Publication number: 20130078400Abstract: There are provided a mold for manufacturing a sleeve capable of improving product quality by preventing damage in an edge of a mold used for manufacturing a sintered type sleeve, and a sleeve manufactured by using the same. The mold includes: a housing mold having a hollow part formed therein, a closed lower end, and a pillar standing at a center thereof in order to form a shaft hole of a sleeve; and a pressing mold pressing sintering powder after the housing mold is filled with the sintering powder, thereby allowing the sintering powder to be sintered in a sleeve shape, wherein the pressing mold has an outer inclined surface formed along an edge portion of an outer diameter of a front end thereof and a step portion formed at an outermost portion of the outer inclined surface.Type: ApplicationFiled: August 20, 2012Publication date: March 28, 2013Applicant: Samsung Electro-Mechanics Co., Ltd.Inventor: Young Tae KIM
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Publication number: 20130064707Abstract: A modeling apparatus includes a box holding mechanism, a box, a supply mechanism, and an elevation mechanism. The box includes a main body and a stage movably provided to the main body. The box is capable of accommodating powder and detachably provided to the box holding mechanism. The supply mechanism is configured to selectively supply liquid that bonds the powder together to a modeling enabled area inside the box. The elevation mechanism is configured to cause the stage to ascend and descend in the main body relative to the main body.Type: ApplicationFiled: September 5, 2012Publication date: March 14, 2013Applicant: SONY CORPORATIONInventors: Takeshi Matsui, Hiroaki Morikawa, Kazuo Niizaka, Junichi Kuzusako, Nobuhiro Kihara
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Publication number: 20130064706Abstract: The present invention relates to an optical irradiation unit (10) for a plant (100) for producing workpieces by irradiating powder layers of a raw material powder with laser radiation, comprising optical components (40, 50, 60, 70) for guiding and focussing a beam path of a first laser beam (200), and an optical splitting and coupling unit (62, 64, 66) for splitting the first laser beam (200) into at least two laser sub-beams and/or for coupling a second laser beam (300) with a wavelength differing from the wavelength of the first laser beam (200) into the beam path of the first laser beam (200). The invention also relates to a plant (100) for producing work-pieces by irradiating powder layers of a raw material powder with laser radiation, and to an associated method.Type: ApplicationFiled: December 3, 2010Publication date: March 14, 2013Applicant: SLM SOLUTIONS GMBHInventors: Dieter Schwarze, Henner Schoeneborn, Andreas Wiesner
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Publication number: 20130052290Abstract: A NdFeB sintered magnet production system including: a first weight unit for measuring the mold weight when the alloy powder is not yet filled; a guide attachment unit to extend the mold cavity with a guide to form a supply cavity with a predetermined volume; a powder supply unit for supplying the alloy powder into the supply cavity so that the alloy powder volume is equal to the supply cavity capacity; a filling unit for pressing the alloy powder contained in the supply cavity into the mold cavity to densify the alloy powder to the filling density; a second weight unit for measuring the mold weight after being filled with the alloy powder; and a controlling unit for computing the alloy powder weight filled into the mold cavity based on the difference between the measurement value from each of the first weight unit and the second weight unit.Type: ApplicationFiled: May 9, 2011Publication date: February 28, 2013Applicant: INTERMETALLICS CO., LTD.Inventor: Shinichi Hayashi
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Publication number: 20130039798Abstract: A method for manufacturing a cutting insert green body from a sinterable powder, a tool set for manufacturing the cutting insert green body by that method and the green body manufactured by the tool set. The tool set has axially moving upper and lower punches and radially moving side punches. The side punches move slidably on die rods. The side punches and die rods move in channels in a base body on which a cover plate is mounted. The upper and lower punches move in through holes in the cover plate and base body, respectively. The die rods are stationary during compaction of the sinterable powder. The upper, lower and side punches form surfaces of the green body and the die rods form some of the edges of the green body. The green body can have undercuts and the edges formed by the die rods can be non-linear in shape.Type: ApplicationFiled: April 12, 2012Publication date: February 14, 2013Applicant: Iscar, Ltd.Inventors: Amir Satran, Alexander Zibenberg
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Publication number: 20130004359Abstract: A system for forming a bulk material having insulated boundaries from a metal material and a source of an insulating material is provided. The system includes a heating device, a deposition device, a coating device, and a support configured to support the bulk material. The heating device heats the metal material to form particles having a softened or molten state and the coating device coats the metal material with the insulating material from the source and the deposition device deposits particles of the metal material in the softened or molten state on the support to form the bulk material having insulated boundaries.Type: ApplicationFiled: June 29, 2012Publication date: January 3, 2013Inventor: Martin Hosek
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Patent number: 8343402Abstract: In one embodiment method to form a composite part from a metallic composite powder, comprises positioning a metallic composite powder preform in a mold cavity formed by a first susceptor and a second susceptor, heating the mold cavity to a first processing temperature, applying a pressure to the mold cavity, and applying a thermal oscillation cycle to the mold cavity, wherein the thermal oscillation cycle oscillates the temperature of the mold cavity between a first temperature in which the metallic composite powder is in a first phase and a second temperature in which the metallic composite powder is in a second phase, different from the first phase.Type: GrantFiled: November 24, 2009Date of Patent: January 1, 2013Assignee: The Boeing CompanyInventors: Marc R. Matsen, Wesley B. Crow, Brad L. Kirkwood
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Publication number: 20120329659Abstract: A sintering apparatus comprising a container for holding small particles that contact one another, an electric current generator generating an alternating electric current and a flux concentrator having a collector positioned to be exposed to an alternating magnetic field generated by the alternating electric current and a tip that focuses the alternating magnetic field so that the particles are exposed to the alternating magnetic field, the alternating magnetic field heating surfaces of the particles so that they join and are fused together.Type: ApplicationFiled: June 25, 2012Publication date: December 27, 2012Applicant: Grid Logic IncorporatedInventor: Matthew J. Holcomb
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Publication number: 20120328465Abstract: A method is provided for producing pressed articles which contain direct-reduced, fine particulate iron (direct reduced iron, DRI) from a fluidized bed reduction system for direct reduction of fine particulate iron ore, wherein direct-reduced, fine particulate iron produced in the fluidized bed reduction system during direct reduction is compacted into pressed articles. Dry, fine particulate material containing at least fine particulate iron ore and optionally fine particulate iron and carbon is admixed to the direct-reduced fine particulate iron and the mixture thus obtained is subsequently compacted into pressed articles. An apparatus for carrying out such method is also provided.Type: ApplicationFiled: February 18, 2011Publication date: December 27, 2012Inventors: Thomas Eder, Robert Millner, Jan-Friedemann Plaul, Norbert Rein
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Publication number: 20120321499Abstract: The invention relates to a method for manufacturing a dog ring gear, each dog being made up of a front portion and a rear portion, the method including the following steps: forming, by means of compression and sintering, a ring gear with dog preforms extending on all or part of the periphery thereof; and calibrating the sintered ring gear in a die including a front die half and a rear die half intended for engaging at the junction between the front and rear portions of the dogs, the thickness (A) of a rear portion (BP) of each preform, in the original plane of the dogs, being greater than the narrowest section (S1) of a groove formed in the rear die half and smaller than the thickest section (S2) of the groove, in the plane.Type: ApplicationFiled: December 16, 2010Publication date: December 20, 2012Applicant: FEDERAL MOGUL SINTERTECHInventors: Vincent Bonnefoy, Jean-Luc Ebroussard
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Patent number: 8312612Abstract: Disclosed is a method and apparatus for the refurbishing of compaction tooling components, particularly the tips and heads of compaction punches.Type: GrantFiled: June 9, 2010Date of Patent: November 20, 2012Assignee: Blue Sky Vision Partners, LLCInventor: Luka Gakovic
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Patent number: 8292607Abstract: The powder compression molding machine includes: a case having a frame; a fresh air intake provided to the case; a suction port for drawing in an atmosphere in the case; an internal pressure measure that measures internal pressure in the case; a suction force measure that measures a suction force for drawing in the atmosphere in the case from the suction port; and a suction force control device that controls the suction force for drawing in the atmosphere in the case from the suction port. The internal pressure in the case is controlled by controlling the suction force by the suction force controller based on the internal pressure in the case measured by the internal pressure measure and/or the suction force measured by the suction force measure.Type: GrantFiled: April 13, 2010Date of Patent: October 23, 2012Assignee: Kikusui Seisakusho Ltd.Inventors: Jun Oyama, Katsuhito Fujisaki
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Patent number: 8281714Abstract: For collecting fine particles from fume generated in the process of thermal cutting or welding of a metal material and solidifying them, a fume disposal system comprises a fume introducing chamber 25 which is connected to a cutting machine body through a suction duct 2 and into which suctioned fume is introduced; a bug filter 24 for separating and collecting fine particles from the fume introduced into the fume introducing chamber 25; a hopper 22 for storing the separated, collected fine particles; a screw conveyor for conveying the fine particles stored in the hopper 22 to a molding chamber; and a pressurizing device 38 for pressurizing the fine particles fed into the molding chamber to reduce the volume thereof.Type: GrantFiled: August 28, 2006Date of Patent: October 9, 2012Assignees: Komatsu Industries Corporation, Shinkogiken Co., Ltd.Inventors: Yoshihiro Yamaguchi, Satoshi Ohnishi, Takahiro Hata, Yukihiro Ishikuri
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Publication number: 20120251378Abstract: There is provided a method for manufacturing a three-dimensional shaped object. The method of the present invention comprises the steps of: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing sintering of the powder of the predetermined portion or melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, and then irradiating another predetermined portion of the new powder layer with the light beam, the steps (i) and (ii) being repeatedly performed in a chamber; wherein a localized gas flow is provided in the chamber, and at least a part of a fume generated by the irradiation of the light beam is entrained by the localized gas flow.Type: ApplicationFiled: October 20, 2010Publication date: October 4, 2012Applicant: PANASONIC CORPORATIONInventors: Satoshi Abe, Norio Yoshida, Isao Fuwa, Yoshikazu Higashi
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Publication number: 20120237385Abstract: A metal injection molding apparatus includes a metal injection mold die having first and second die halves, a first set of features provided in the first die half, a second set of features provided in the second die half and complementary to the first set of features provided in the first die half and an ultrasonic transducer disposed in contact with the metal injection mold die. A binderless metal injection molding method is also disclosed.Type: ApplicationFiled: June 1, 2012Publication date: September 20, 2012Inventor: Carey E. Wilkinson
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Publication number: 20120216654Abstract: The invention relates to a method for producing a green compact, said green compact comprising at least two partial green compacts, each partial green compact being compacted and joined from at least one powdery material in one working cycle. Particularly, two, three, four or more than four partial green compacts can be compacted and joined in one working cycle.Type: ApplicationFiled: March 22, 2012Publication date: August 30, 2012Inventors: Rainer Schmitt, Antonio Casellas
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Publication number: 20120214014Abstract: The invention relates to a method for producing a composite part, the composite part comprising at least one powder metal part compacted from a powdery material and at least one solid part. The powdery material is compacted to a powder metal part inside the working chamber of a press, especially a pressing tool of a press, and the solid part is at least partially fed to the working chamber in the same step, especially in the same working cycle of the press so that the composite part is produced within one working cycle.Type: ApplicationFiled: March 22, 2012Publication date: August 23, 2012Inventors: Rainer Schmitt, Frank Sablotny
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Patent number: 8221111Abstract: Disclosed is a mold wherein one bottom surface member (2) and four lateral surface members (3) are assembled. The sides of each lateral surface member (3) are respectively provided with a projection (5) and a recess (6) for combining the lateral surface members together, and the projection (5) of one lateral surface member (3) is engaged with the recess (6) of the adjacent lateral surface member (3). By using the one bottom surface member (2) and four lateral surface members (3), a mold can be assembled or disassembled without using screw or bolts. Consequently, the assembly or disassembly work of the mold is dramatically simplified, thereby improving work efficiency significantly.Type: GrantFiled: January 27, 2005Date of Patent: July 17, 2012Assignee: Kyocera CorporationInventors: Youhei Sakai, Yoshiyuki Amano
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Patent number: 8211359Abstract: A method, control system, computer program, and article of manufacture for controlling hydraulic press systems, and a new press system that utilizes a number of improvements over the assignee's original system. The control system is designed to control a hydraulic press having a die, at least two separate sets of workpiece forming punches, and at least two hydraulic pistons, each operatively associated with one set of workpiece-forming punches. The control system includes a means for controlling a magnitude of a pressing force applied by each set of workpiece-forming punches, and a means for controlling a position of each set of workpiece-forming punches relative to the die.Type: GrantFiled: November 21, 2003Date of Patent: July 3, 2012Inventor: Glenn L. Beane
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Patent number: 8186988Abstract: A powder press, with a press frame, which comprises an upper and lower frame section, an upper linear drive attached to the upper frame section and a lower linear drive attached to the lower frame section, wherein the drives are connected to an upper and lower punch plate or a die table, respectively, wherein the punch plates have a clamping system for an upper or a lower punch, a die clamping system on a die table with a die, and at least one force measuring device for measuring the pressing force on at least one punch, characterized in that at least one force measuring device is disposed between a punch plate and the associated clamping system.Type: GrantFiled: June 26, 2009Date of Patent: May 29, 2012Assignee: Fette GmbHInventors: Udo Baltruschat, Stephan Mallon, Harald Römer, Jan Naeve, Ingo Schmidt
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Publication number: 20120107434Abstract: A forming die assembly for microcomponents includes a forming die and a punch. The forming die is formed with a cavity, a punch hole connected to the cavity, and a supply path for supplying a raw material with a metal powder and a binder having plasticity. The supply path is connected to the cavity so as to have a gate therebetween and is used for supplying the raw material into the cavity. The punch is slidably inserted into the punch hole, and it opens and closes the gate by reciprocatory sliding. The punch closes the gate and compresses the raw material in the cavity into a green compact by sliding in the direction of the cavity.Type: ApplicationFiled: October 24, 2011Publication date: May 3, 2012Applicant: HITACHI POWDERED METALS CO., LTD.Inventors: Narutoshi MURASUGI, Kazunori MAEKAWA, Zenzo ISHIJIMA
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Publication number: 20120100032Abstract: The invention relates to a mould assembly for a hot isostatic pressing, HIP, process, comprising: an insert comprising a plurality of pieces which combine to provide a recess in which a protrusion of the component can be formed; and, a holding piece having at least one cavity in which the insert is mateably received.Type: ApplicationFiled: October 5, 2011Publication date: April 26, 2012Applicant: ROLLS-ROYCE PLCInventors: Wayne E. VOICE, Junfa MEI, Thomas P. JARVIS
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Publication number: 20120100033Abstract: This invention relates to a mould assembly for a hot isostatic pressing, HIP, process for fabricating a component, comprising: a first part which includes a shaped surface for forming a first surface of the component, the shaped surface having at least one recess; a second part arranged to move relative to the first part during the HIP process so as to compress a powder in-fill held therebetween, wherein the second part includes a formation configured to focus pressure toward the recess so as to aid consolidation of the powder in-fill at a distal end thereof.Type: ApplicationFiled: October 5, 2011Publication date: April 26, 2012Applicant: ROLLS-ROYCE PLCInventors: Wayne E. VOICE, Thomas P. JARVIS
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Publication number: 20120100031Abstract: The invention concerns a method for producing three-dimensional objects (6) layer by layer using a powdery material (7) which can be solidified by irradiating it with a high-energy beam (4), said method comprising the steps of: applying a first layer of powdery material onto a working area (5); solidifying a part of said first layer by irradiating it with a high-energy beam; and applying a second layer (8) of powdery material onto the first, partly solidified layer. The invention is characterized in that the method comprises the step of: determining a rate at which the temperature of the second layer (8) increases after application onto the first layer. The invention also concerns an apparatus configured to operate according to the above method.Type: ApplicationFiled: July 15, 2009Publication date: April 26, 2012Applicant: ARCAM ABInventor: Ulric Ljungblad
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Patent number: 8137089Abstract: A punch for a rotary press, which has a shaft and a head, wherein the head has an upper mirror surface, a cylinder surface and a rounded transition area between the mirror surface and cylinder surface with a first and a second radius, wherein the first radius is larger than the second radius and wherein the punch head also has a preferably conical transition area from the cylinder surface to the shaft, wherein the diameter of the head is less than 25 mm and the first radius of the transition area is selected such that its height is less than half the height of the cylinder surface.Type: GrantFiled: April 2, 2009Date of Patent: March 20, 2012Assignee: Fette GmbHInventors: Jürgen Schikowski, Friedrich Meissner, Jan Naeve, Harald Römer, Reinhard Wagner
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Publication number: 20120055100Abstract: A metal bond grind stone producing method in which electric power consumption is reduced is provided. In the metal bond grind stone producing method, a sintered metal bond grind stone is obtained by a sintering process of sintering a metal bond grind stone material that is a mixture of a metal binder powder and abrasive grains. In the sintering process, the metal bond grind stone material containing the metal binder powder is heated with microwaves to obtain the sintered metal bond grind stone. The sintering process may be a pressure sintering process of performing microwave heating while pressurizing the metal bond grind stone material.Type: ApplicationFiled: May 26, 2010Publication date: March 8, 2012Inventors: Hiroshi Yamazoe, Masahiro Itoi, Tomohiko Mitani, Taro Sonobe
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Publication number: 20120058340Abstract: The cross-sectional shape of a main part except for both end portions is generally divided into a lower arc surface extending along a base circle and an upper arc surface of which a top portion corresponds to the base circle. Side edge portions extending inward from the base circle are formed on both side surfaces of the upper arc surface. Curved edge portions which concavely curves upward from the side edge portions to end surfaces and continues to the end surfaces and chamfer portions extending from the end surfaces to the side surfaces which planes the edges and curves so that width thereof gradually narrows, are formed on both ends in a longitudinal direction.Type: ApplicationFiled: May 12, 2010Publication date: March 8, 2012Applicant: HITACHI POWDERED METALS CO., LTD.Inventors: Jiro Shima, Kazunori Maekawa
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Patent number: 8119062Abstract: A method for manufacturing a cutting insert green body having undercuts includes providing a die cavity formed in closed top and bottom dies; closing a bottom of the die cavity by a bottom punch accommodated in a punch tunnel formed in the bottom die; filling the die cavity with a pre-determined amount of sinterable powder; moving a top punch towards the die cavity through a punch tunnel formed in the top die; compacting the powder by urging the top and bottom punches towards each other, thereby forming the green body; and moving the top die and punch away from the bottom die and punch, thereby enabling removal of the formed green body. An apparatus for manufacturing a cutting insert green body having undercuts includes top and bottom dies which abut each other and top and bottom punches which slide in their respective dies.Type: GrantFiled: April 28, 2010Date of Patent: February 21, 2012Assignee: Iscar, Ltd.Inventors: Carol Smilovici, Osama Atar, Assaf Ballas, Basem Dakwar
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Publication number: 20120025409Abstract: A method for a vacuum process of isostatic pressing of powder material comprises preparing an explosive charged rubber bag by charging a rubber bag with powder, forming a vacuum environment by putting the explosive charged rubber bag in a vacuum box, sealing an inlet of the explosive charged rubber bag which is in a vacuum state, and maintaining the vacuum state by putting the explosive charged rubber bag in a fluid contained in a reservoir by a predetermined depth in a state that the inlet of the explosive charged rubber bag has been sealed.Type: ApplicationFiled: October 4, 2010Publication date: February 2, 2012Applicant: AGENCY FOR DEFENSE DEVELOPMENTInventors: Jin Sung LEE, Hee Duk PARK, Hee Sul SA
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Patent number: 8105060Abstract: A target capsule includes (A) a pedestal having a central projection, (B) a pedestal aid attached to the central projection so as to define a sample-loading assembly, and (C) an impact-receiving member, wherein the components (A), (B), and (C) are detachable from each other. The impact target capsule can be readily loaded with a sample, allows the sample to be easily retrieved after application of impact pressure, and can be used repeatedly, and thereby the capsule can be preferably used as an impact compression apparatus in combination with a single-stage powder gun or a single-stage gas gun.Type: GrantFiled: August 31, 2007Date of Patent: January 31, 2012Assignee: Kuraray Co., Ltd.Inventors: Hideharu Iwasaki, Takayuki Ikeda, Hideaki Fujiwara, Yoshihisa Tsuji
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Patent number: 8087918Abstract: A pressing mold for use in press working of a material includes a mold body, a coating film formed on the portion of the pressing mold that comes into contact with the material in the press working, the coating film being formed by PVD method. The coating film includes a TiN layer formed on a surface of the mold body, a Ti(CxNy) layer (wherein, x+y=1, x<1, and x gradually increases to 1 as it becomes more distant from the surface of the TiN layer) formed on the TiN layer, and a TiC layer formed on the Ti(CxNy) layer.Type: GrantFiled: December 3, 2007Date of Patent: January 3, 2012Assignee: Toyo Advanced Technologies Co., Ltd.Inventors: Hiroshi Fujiwara, Ichiro Kanba, Tadashi Takano
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Patent number: 8088322Abstract: The present invention relates to a method and a device for shaping a pharmaceutically active substance in the form of powders, granules, multiparticulate medicaments, in particular pellets and microcapsules, for the production of a tablet or a multiparticulate medicament by means of ultrasound, with an ultrasound generator, a sonotrode and a mould, into which the pharmaceutically active substance can be poured.Type: GrantFiled: March 22, 2006Date of Patent: January 3, 2012Assignee: Gruenenthal GmbHInventors: Elisabeth Arkenau-Maric, Johannes Bartholomaeus, Anja Geissler, Rene Jansen
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Publication number: 20110316202Abstract: A process is described for the sintering of powders (D) comprising conductive powders, loose or in the form of powder compacts, that comprises the operations of: inserting said powders (D) in a mould (23; 33, 34); applying (5, 6) a pressure (P(t)) to said powders (D) in said mould (23; 33, 34) commanding (4) nominal pressure values to pressure application devices (5, 6) to said powders (D); applying (1, 2, 3, 4) one or more current impulses (Ii) to said powders (D) in said mould (23; 33, 34) for a respective time interval of predetermined duration (tf), wherein said nominal pressure values (P(t)) commanded said pressure application devices (5, 6) defining an increment of pressure (P1) from a first pressure, value (P0) to a second pressure value (Pj) greater | than said first pressure value (P0) and said increment in the pressure (P4) being applied in a synchronised way with respect to the initiation of said time interval of predetermined duration (tf) of the current impulse (Ii)o.Type: ApplicationFiled: December 18, 2009Publication date: December 29, 2011Inventor: Alessandro Fais
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Publication number: 20110311667Abstract: A pressing tooling machine, including one or two punches, a die including sectors that can separate from each other but are connected to a shared primary portion, and a ring surrounding and holding the sectors, against which it is adjusted by tapered surfaces, and the altitude of which varies owing to the rotation of a crown provided with a surface in relief. When compression is finished, stripping is preceded by a slight separation of the sectors, which makes it possible to release stresses in the compressed piece and avoid many risks of damaging the piece. The sectors are made resistant by inserts made from a hard material, generally removable and able to be machined to an exact profile of the pieces to the formed.Type: ApplicationFiled: March 2, 2010Publication date: December 22, 2011Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALTInventors: Jean-Philippe Bayle, Frédéric Jorion, Gérard Delette
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Publication number: 20110297277Abstract: The invention relates to a powder metallurgically manufactured steel with a chemical composition containing, in % by weight: 0.01-2 C, 0.6-10 N, 0.01-3.0 Si, 0.01-10.0 Mn, 16-30 Cr, 0.01-5 Ni, 0.01-5.0 (Mo+W/2), 0.01-9 Co, max. 0.5 S and 0.5-14 (V+Nb/2), where the contents of N on the one hand and of (V+Nb/2) on the other hand are balanced in relation to each other such that the contents of these elements are within an area that is defined by the coordinates A?, 13% G, H, A?, where the coordinates of [N, (V+Nb/2)] are: A?: [0.6,0.5]; B?: [1.6,0.5]; G: [9.8,14.0]; H: [2.6,14.0], and max. 7 of (Ti+Zr+Al), balance essentially only iron and impurities at normal amounts. The steel may be used for tools for injection moulding, compression moulding and extrusion of components of plastics, and cold working.Type: ApplicationFiled: August 17, 2011Publication date: December 8, 2011Applicant: UDDEHOLMS ABInventors: Lennart Jönson, Odd Sandberg
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Patent number: 8062014Abstract: A split case die is used to press powder, wherein the die parts are moveable in a direction non-parallel to the direction of the pressing axis. The part produced by such a split case die has an external surface with parting line marks oriented in a direction non-perpendicular to the pressing axis.Type: GrantFiled: November 27, 2007Date of Patent: November 22, 2011Assignee: Kennametal Inc.Inventors: Richard J. Gubanich, Edward M. Dinco, Kent P. Mizgalski, Thomas R. Weisel
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Publication number: 20110256253Abstract: An apparatus for producing a three-dimensional shaped product capable of decreasing thermal dissipation due to thermal conduction of a heating device or a cooling device loading a base plate, in which powder is sequentially sintered on a table and a base plate a inside a shaping tank wherein a space of vertical direction is formed on the table or the space is formed and a heat insulating material is filled into the thus formed region, a heating device or a cooling device which loads the base plate a supporting the sintered layer is firmly fixed.Type: ApplicationFiled: July 14, 2010Publication date: October 20, 2011Applicant: MATSUURA MACHINERY CORPORATIONInventors: Koichi Amaya, Yukinori Urushizaki, Hideto Matsubara
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Publication number: 20110256252Abstract: An apparatus for producing a three-dimensional shaped product installs on a surface of a table a base plate which loads powder and a shaped article, with a vertical space being formed. A frame body is installed upright on the table The base plate is placed on a support horizontally projecting from the frame body and/or a step portion which provides an inner direction part of the table of the frame body. The base plate is supported so the center of gravity of the base plate is inside a triangle formed by three locations or a quadruple formed by four locations inside a region of the support or the step portion on which the base plate is placed, and the part projecting above the support and/or an inner wall of the frame body are contacted with a horizontally surrounding part of the base plate at three or more locations.Type: ApplicationFiled: July 14, 2010Publication date: October 20, 2011Applicant: MATSUURA MACHINERY CORPORATIONInventors: Koichi AMAYA, Yukinori URUSHIZAKI, Hideto MATSUBARA
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Publication number: 20110250087Abstract: Provided is an easy and inexpensive method for producing a sintered rare-earth magnet having cavities, such as slits, for making the magnet less likely to be influenced from eddy currents and/or performing a grain boundary diffusion process. The method for producing a sintered rare-earth magnet includes performing the following successive processes: a filling process ((a), (b)) for filling a powder of rare-earth magnet alloy into a powder-filling container together with a cavity-forming member; an aligning process (b) for aligning the rare-earth magnet alloy powder in a magnetic field; and a sintering process (e) for sintering the rare-earth magnet alloy powder by heating the rare-earth magnet alloy powder in a state of being held in the powder-filling container, wherein (d) the cavity-forming member is removed after the aligning process is completed and before the rare-earth magnet alloy powder begins to be sintered.Type: ApplicationFiled: October 29, 2009Publication date: October 13, 2011Applicant: INTERMETALLICS CO., LTD.Inventor: Masato Sagawa
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Patent number: 8033805Abstract: A die for use with a uni-axial press including top and bottom rams, at least one of the top and bottom rams being movable along a pressing axis. The die includes at least two separable die parts mutually engageable along adjacent parting surfaces extending in a direction non-perpendicular to the pressing axis and a removable core rod. The die parts are movable between separated and engaged positions in a direction non-parallel to the pressing axis. The die includes a first passageway extending therethrough between the periphery of the die and the die chamber. The first removable core rod is configured to be inserted into the die chamber through the first passageway.Type: GrantFiled: December 15, 2009Date of Patent: October 11, 2011Assignee: Kennametal Inc.Inventors: Richard J. Gubanich, Daniel Joseph Meharey, Edward M. Dinco
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Publication number: 20110241947Abstract: An apparatus (10) for forming a three dimensional object (30) by layer-wise addition of a build material has a build-support (100) for supporting the object (30) during forming and a removable metallic base-layer (110) that is in the form of a mesh, film, sheet or foil. The base-layer (110) is removably securable to the build support (100).Type: ApplicationFiled: October 30, 2009Publication date: October 6, 2011Applicant: MTT Technologies LimitedInventors: Simon Peter Scott, Sutcliffe Chris
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Patent number: 8029261Abstract: A transfer board for transferring a columnar primary compression molded product which is supplied continuously one by one vertically in a shooter into a mortar of a secondary tablet compression machine, having at least an inclined portion having a plane-state inclined face, an input portion adjacent thereto, a portion for limiting drop of primary compression molded product, and a bottom plate provided at a lower part of the input portion, the inclined face being inclined so as to become lower toward the input portion, the inclined portion and the adjacent input portion performing a linear motion or rotary motion at a constant speed horizontally in a direction opposite to the input portion, and the input portion and the bottom plate being able to supply the primary compression molded product into the mortar of the secondary tablet compression machine while the columnar direction is kept substantially in a state of the horizontal direction.Type: GrantFiled: February 19, 2008Date of Patent: October 4, 2011Assignee: Teijin Pharma LimitedInventors: Masahiko Narasaki, Tomoya Akutagawa, Takamasa Maki, Minoru Uemura
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Publication number: 20110189325Abstract: A new process and technical arrangement to produce in series penetrator rods which have a true single crystal structure consisting of an alloy of 40% by weight Tungsten, 40% by weight Titanium, 20% by weight Osmium. Those single crystal penetrator rods do not break up upon impact on a target, the material sleeves back over the surface whilst the core drives forward and penetrates till the given velocity is used up. This phenomena is only achievable with a single crystal structure and leads to a size and weight reduction because there is not any material lost upon impact on the target as it happens with all penetrator rods which have a grain structure and as they are used today. This alloy as named above has the highest density and highest hardness possible, caused by the crystal growth process and it permits the user to stay out of reach of any opponent not using the same material.Type: ApplicationFiled: June 9, 2010Publication date: August 4, 2011Inventor: Juergen Wisotzki
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Publication number: 20110190904Abstract: Provided are methods and systems for fabricating multimaterial bodies in a layer-wise fashion, which bodies may be used bone-stabilizing implants. The multimaterial bodies include rigid and flexible portions that are integrally formed with one another. The multimaterial bodies may be softened or stiffened in specific areas to match the biological or anatomical features of a bone.Type: ApplicationFiled: December 28, 2010Publication date: August 4, 2011Inventors: Beat Lechmann, Dieter Schmidli, Robert Frigg, Reto Nardini
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Publication number: 20110189046Abstract: A mold is provided for making a cutting tool insert from a material to be molded, the cutting tool insert having an edge defined by two intersecting surfaces. The mold includes a first surface, a second surface intersecting with the first surface to define an edge, and an air gap between the first surface and the second surface at the edge, the width of the air gap varying in a controlled way along its length. A method for making a cutting tool insert is also disclosed.Type: ApplicationFiled: May 8, 2009Publication date: August 4, 2011Applicant: Seco Tools ABInventors: Johnny Bruhn, Mikael Gronqvist
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Patent number: 7976300Abstract: A pelleting machine has a die table having at least one die plate, dies associated with the die plate and a feed device for feeding a material to be pressed into the die plates. The feed device includes a feed shoe arranged substantially parallel to a surface of the die table and has at least one feed opening which is arranged or can be arranged in the region of the die plates. The pelleting machine includes a sealing device disposed between the feed shoe and the die table. The sealing device has at least one sealing element forming the contour of the feed opening, wherein a force acting in the direction of the die table is applied to the sealing element.Type: GrantFiled: May 7, 2007Date of Patent: July 12, 2011Assignee: Korsch AGInventors: Michael Matthes, Jörg Reiche, Helmut Haase
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Patent number: 7972545Abstract: A device and a method for manufacturing an end mill in which the amount of grinding of a blank end mill is small. The device for manufacturing an end mill includes: upper and lower punches; a die; a feed box for supplying a powder of material for the end mill; and a cleaner for eliminating the powder from a top surface of the die. The upper and lower punches are movable up and down relative to each other and have a lengthwise molding cavity formed thereon. The die has a penetrating slit sized to be approximated to the width of the upper and lower punches. The penetrating slit allows the up-and-down movements of the upper and lower punches. The feed box supplies the powder into a space formed by the wall of the penetrating slit and the lower punch.Type: GrantFiled: June 11, 2007Date of Patent: July 5, 2011Assignee: TaeguTec, Ltd.Inventor: Byung Gyun Bae
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METHOD AND DEVICE FOR PRODUCING A WORKPIECE, PARTICULARLY A SHAPING TOOL OR A PART OF A SHAPING TOOL
Publication number: 20110129380Abstract: A method for producing a workpiece, particularly a shaping tool or a part of a shaping tool, includes the following steps: providing a heat-resistant mold (2) with a first molded part (2a) and at least a second molded part (2b) in a chamber that can be evacuated (1); filling a metal-containing material into the heat-resistant mold (2); producing a vacuum in the chamber that can be evacuated (1); heating the metal-containing material; compressing the heated metal-containing material in the heat-resistant mold (2) by hot pressing under vacuum conditions. The present invention further relates to a device for producing a workpiece, particularly a shaping tool or a part of a shaping tool.Type: ApplicationFiled: May 23, 2009Publication date: June 2, 2011Applicant: ROVALMA, S.A.Inventor: Isaac Valls Angles