| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Warm or hot longitudinally simultaneous extrusion high speed type forging method and device | JP27172896 | 1996-09-19 | JPH1085890A | 1998-04-07 | YANO MASAKAZU; OZAKI KATSUHIKO; YOSHIDA TADATSUGU; KASAHARA YOSHIO |
| PROBLEM TO BE SOLVED: To provide a high speed forging method and device in which the longitudinally simultaneous extrusion is substantially performed, the metal flow is excellent and no flaws are generated, and ring-shaped parts of stable quality can be efficiently formed with excellent accuracy at high speed of >=80 slide strokes per minute. SOLUTION: A die 2 having a rearwardly projected part 3, a work 7 to be heated, and a punch 4 having a forwardly projected part 5 are arranged in a container 1 of a die forging device in the order from the forward part in the extrusion direction, a withdrawal type die 6 is arranged between the container 1 and the work 7, the die 2 and the punch 4, the forwardly installed die 2 is fixed to set the die speed VD to be zero, the punch speed VP is set twice as the withdrawal type die speed VWD, the stroke length of the withdrawal type die 6 is >=1/2 of the forward extrusion length of a product, and a ring- shaped stock symmetrical to the center is formed through warm or hot longitudinally simultaneous extrusion die forging to press the punch in the die direction. | ||||||
| 142 | Manufacture of yoke for elastic universal joint | JP16350595 | 1995-06-29 | JPH0914282A | 1997-01-14 | ABE SHOICHI; OKUBO KIYOSHI |
| PURPOSE: To automate the manufacturing work of a yoke for an elastic universal joint and shorten machining time by facilitating the automation of stamping, bending, deep drawing, ironing, boring, and the like, and consisting of only processes requiring short time. CONSTITUTION: Stamping in a first process, bending in a second process, deep drawing in a third process, ironing in a fourth process, boring in a fifth process, adjusting the inner diameter dimension of a bored part in a sixth process, and diameter contracting work in a seventh process are respectively applied to obtain seventh intermediate material. Finally in an eighth process, mutually concentric circular holes 32, 33 are bored in the tip parts of a pair of arm parts 40, 40 forming the seventh intermediate material to obtain a yoke 81 for an elastic universal joint. Bearing cups 34, 34 forming radial needle bearings 33, 33 are fittingly fixed into the circular holes 32 of the yoke 81 thus completed. A cushioning cylinder is further fittingly fixed into a large diameter part of a cylindrical part 64b, and a required transmission piece or the like is mounted to complete the elastic universal joint. | ||||||
| 143 | Manufacture of cuplike product made of aluminum | JP14532882 | 1982-08-20 | JPS5935840A | 1984-02-27 | SATOU KENICHI; SHIMOIDE TAKASHI |
| PURPOSE:To reduce fraction defectives, by cutting an Al wire rod whose tensile strength is below a specified value, to fixed length, bringing it to header working, and thereafter, performing its deep drawing. CONSTITUTION:An Al wire rod which is softened by cleaning and annealing processes after wire drawing, and has <=11kg/mm.<2> tensile strength is cut to fixed length, and thereafter, is brought to header working. It is brought to deep drawing, by which a cuplike product made of Al is obtained. In this regard, when an Al wire rod whose tensile strength is <=8kg/mm.<2> is used, fraction defectives in case of fixed length cutting and header working can be further reduced. | ||||||
| 144 | JPS5621482B2 - | JP1312977 | 1977-02-10 | JPS5621482B2 | 1981-05-20 | |
| 145 | METHOD OF PROVIDING A SOLENOID HOUSING | EP08743020.3 | 2008-04-17 | EP2136940B1 | 2016-11-02 | MEHTA, Shreyas, R.; PARTHASARATHY, Hassan Cheluva, Iyenger |
| 146 | TORSIONAL EXTREME-PLASTIC PROCESSING METHOD OF CONIC METAL PIPE | EP12856595 | 2012-11-30 | EP2808101A4 | 2015-10-21 | KIM HYOUNG-SEOP; UM HO-YONG; YOON EUN-YOO; LEE DONG-JUN; LEE SEONG |
| The present invention relates to a torsional extreme-plastic processing method capable of replacing a metal spinning process that is a method for processing a conic metal pipe which is mainly used for a projectile such as a bullet, missile, and a nose cone of an airplane. In other words, a processing method in which severe plastic deformation based on torsion and compressive force is applied to a material by using a mold to produce miniaturize and nano-size crystal particles in a conic pipe. According to the severe plastic deformation method of the present invention, a punch that matches an inner shape of the conic metal pipe is mounted inside the conic metal pipe, and then a mold that matches an outer shape of the conic metal pipe is mounted outside the conic metal pipe. Thus, microstructures of the conic metal pipe may be ultra-finely crystallized or nano-crystallized through shearing by applying compression and torsion to the conic metal pipe. | ||||||
| 147 | A METHOD FOR THE MANUFACTURE OF A VESSEL BOTTOM WITH A FLANGE | EP11863254.6 | 2011-12-28 | EP2807651A1 | 2014-12-03 | PETRZELA, Jirí; LÁSZLÓ, Vladimír; CECHEL, Tomás; GREGER, Miroslav |
| A method for the manufacture of a vessel bottom with a flange includes the following steps: after heating of an ingot to a forming temperature, a preliminary forging (1) in shape of a circular plate having the height (H) and diameter (0) is made by free forging on a forging press; after the second heating to a forming temperature, the preliminary forging (1) is placed on a working plate (4) of a lower swage and the first male die (2) is pushed concentrically into the forging (1) to a depth necessary for the formation of a flattened segment (3); the flattened segment (3) is rotated by 180° and after its location on a machine tool a bellows (7) is formed by mechanical machining, which has in the centre a recess (X) and around the perimeter of the convex region (5) a recess (Y) having the radius (R); after heating, the bellows (7) is placed on a pre-prepared set of tools for the pressing via the convex part (5) upwards on a forming ring (8); the main male die (10) is pushed concentrically into the bellows (7) for pressing the bottom (11) by means of a reverse drawing, the bottom (11) being equipped with an external flange (6). | ||||||
| 148 | Manufacturing method for bearing outer ring | EP13157777.7 | 2008-01-16 | EP2602501A1 | 2013-06-12 | Kobayashi, Kazuto; Koyama, Hiroshi |
Provided is a manufacturing method of an outer ring (3) in which a cylindrical material is sequentially subjected to a upsetting process, a simultaneous forward-backward extrusion process, a punching process, a rolling process, and a finishing process, to thereby produce a bearing outer ring (3) comprising back-to-back arrangement double-row outer ring raceways (2) at two locations in the axial direction on the inner peripheral surface.
|
||||||
| 149 | MANUFACTURING METHOD FOR BEARING OUTER RING | EP08703317 | 2008-01-16 | EP2103826A4 | 2011-12-28 | KOBAYASHI KAZUTO; KOYAMA HIROSHI |
| 150 | METHOD OF PROVIDING A SOLENOID HOUSING | EP08743020.3 | 2008-04-17 | EP2136940A2 | 2009-12-30 | MEHTA, Shreyas, R.; PARTHASARATHY, Hassan Cheluva, Iyenger |
| The invention relates to a method of providing a solenoid housing, including the steps of providing a solid cylinder of malleable material having a first part and a second part; reducing a diameter of the first part of the cylinder to be less than a diameter of the second part of the cylinder; compressing the second part in an axial direction toward the first part, resulting in a flattened disc generally perpendicular to the first part; raising at least a part of a perimeter of the flattened disc in a direction toward the first part for defining a raised wall; and wherein the first part, second part, and raised perimeter are all integrally connected as a single piece. | ||||||
| 151 | DIFFERENTIAL WITH DIE FORMED HOUSING | EP04761786 | 2004-09-15 | EP1664594A4 | 2009-07-22 | PASCOE DAVID MARK; DORIGO DAVID; MU CHENG; LI JIANWEN |
| A differential comprises a die formed housing having a spherical inner volume. A subassembly is disposed in the spherical inner volume of the housing. A die formed cover is fixedly attached to the die formed housing for enclosing the subassembly with the housing. A ring gear is connected to the housing for transmitting torque from a prime mover through the differential. The differential is both light and strong and reasonably inexpensive to manufacture. | ||||||
| 152 | MOLDING METHOD BY FORGING AND MOLDING METHOD FOR CASE | EP04728001 | 2004-04-16 | EP1736255A4 | 2007-05-02 | TABEI YOUICHI; ARAKI TAKASHI; KOUNO SHINJI; YANAOKA SHOICHI; MIURA TAKASHI |
| A molding method by forging, wherein, a material (1) manufactured by punching out a plate-like member is molded, in an upsetting step, in a first intermediate molded product (2) by molding its peripheral edge part in an annular thin-walled part (21), molding the inside of the annular thin-walled part (21) in a thick-walled part (22) thicker in wall thickness than the annular thin-walled part (21), and forming a recessed part (22A) at the center part of the thick-walled part (22). A gear or a cup-like case with an inner boss is manufactured by using the first intermediate molded product (2). When the cup-like case with the inner boss is manufactured, the first intermediate molded product (2) is molded into a second intermediate molded product (3), in a drawing with ironing step, by molding its thick-walled part (22) in a bottom part (32) and pressing/molding the annular thin-walled part (21) in a peripheral wall part (31) integrally extended from the bottom part (32). The second intermediate molded product (3) is extruded forward and backward to extrude an inner boss (43) on the inside of the bottom part (42) and an outer boss (44) on the outside of the bottom part (42), and an outward flange part (41A) is formed at the outer end edge part of a peripheral wall part (41). | ||||||
| 153 | MOLDING METHOD BY FORGING AND MOLDING METHOD FOR CASE | EP04728001.1 | 2004-04-16 | EP1736255A1 | 2006-12-27 | TABEI, Youichi, c/o Bosch Automotive Systems Corp.; ARAKI, Takashi, c/o Bosch Automotive Systems Corp.; KONO, Shinji, c/o Bosch Automotive Systems Corpor.; YANAOKA, Shoichi; MIURA, Takashi |
A material member blanked from metal sheet is subjected to upsetting to form an annular peripheral portion that is thinner than the center part of the material inside the annular portion, and the thicker inside portion is formed into a concavity. The first intermediate product thus formed is drawn to form a cup-shaped case with an internal boss and/or an external boss, and an outside flange. The intermediate product can also be used to make gears and the like. |
||||||
| 154 | REFRACTORY METAL POTS | EP05726097.8 | 2005-03-23 | EP1733065A1 | 2006-12-20 | JEPSON, Peter, R. |
| The invention relates to a computer-implemented process for making a pot that involves: (a) cutting an ingot comprising a refractory metal component into a first work piece; (b) subjecting the first work piece to upset forging, and thereby forming a second work piece; (c) subjecting the second work piece to a first annealing step in a vacuum or an inert gas to a first temperature that is sufficiently high to cause at least partial recrystallization of the second work piece, and thereby forming an annealed second work piece; (d) forging-back the annealed second work piece by reducing the diameter of the second work piece, and thereby forming a third work piece; (e)subjecting the third work piece to upset forging, and thereby forming a fourth work piece; (f)forging back the fourth work piece by reducing the diameter of the fourth work piece, and thereby forming a fifth work piece; (g) subjecting the fifth work piece to a. second annealing step to a temperature that is sufficiently high to at least partially recrystallize the fifth work piece; (h) subjecting the fifth work piece to upset forging, and thereby forming a sixth work piece; (i)subjecting the sixth work piece to a third annealing step, and thereby forming an annealed sixth work piece; (j) rolling the annealed sixth work piece into a plate by subjecting the annealed sixth work piece to a plurality of rolling passes; wherein the annealed sixth work piece undergoes a reduction in thickness after at least one pass and the annealed sixth work piece is turned between at least one pass, and thereby forming a plate; and (k)deep drawing the plate into a pot, thereby forming the pot; in which a fourth annealing step is carried out either (1) after step (j) before step (k), or (2) after step (k). Dimensions of at least one work piece or plate suitable for processing into a pot are pre-determined with a computer-implemented finite element modeling assessment method so that at least one work piece in steps (b)-(j) or plate in step (k) has dimensions that are substantially similar to the dimensions determined by the computerimplemented finite element modeling assessment method. | ||||||
| 155 | METHOD FOR MANUFACTURE OF A METAL SHELL, AND A CUP DESIGNED TO SERVE AS A BLANK | EP03765416.7 | 2003-07-03 | EP1536899A1 | 2005-06-08 | Häkansson, Lennart DI |
| The invention relates to manufacture of a cup (1) that is designed to serve as a blank in the production of a metal shell (2) by providing a body (3)of a bar material, placing the body (3) in a counterdie (6) in which a first end surface of the body (3),which is substantially perpendicular to the central axis (C) of the body, is placed facing towards the bottom of the counterdie while the inner wall of the counterdie (6) encloses at least a part of the body and preferably the whole body, so that the body (3) is hereby placed in the counterdie (6), applying a mandrel (9) to a second end surface of the body that is substantially perpendicular to the central axis C of the body (3), applying a pressing force to the mandrel (9) so that the body (3) is cold flow pressed through plastic deformation into a cup (1). The invention also relates to an application of a body for manufacture of a blank for a grenade/cartridge shell and a process for manufacture of a grenade/cartridge shell. | ||||||
| 156 | Verfahren zur Herstellung eines einteiligen Pressfittings aus Metall | EP02090282.1 | 2002-07-26 | EP1281456A3 | 2004-05-12 | Sedlak, Bernd |
Die Erfindung betrifft ein Verfahren zur Herstellung eines einteiligen Pressfittings aus Metall, bestehend aus einem Grundkörper und mindestens einem verpressbaren Anschlusselement, bei dem ausgehend von einem Band zunächst ein längsnahtgeschweißtes Rohr erzeugt wird, das in einem weiteren Schritt in einzelne Abschnitte aufgeteilt wird und deren Enden bearbeitet werden und dieser Rohrabschnitt abschließend über eine Vielzahl einzelner Umformschritte in einen einteiligen Pressfitting mit der vorgegebenen Kontur und Abmessung umgeformt wird. Dabei wird unter Wegfall der Rohrherstellung, Aufteilung und Endenbearbeitung vom Band (1) ein Stück abgetrennt oder heraus gearbeitet und mittels Tiefziehen ein Blechnapfkörper (5) hergestellt, der über mehrere Umformschritte und mindestens einem Abtrennschnitt zum vorgegebenen einteiligen Pressfitting umgeformt wird. |
||||||
| 157 | Thin, forged magnesium alloy casing and method for producing the same | EP99105853.8 | 1999-03-23 | EP0945199B1 | 2003-11-26 | Seki, Isao; Hama, Shigeo; Taniike, Shigehiro; Watanabe, Fukashi; Kakizaki, Masahiko; Seki, Shinji |
| 158 | Verfahren zur Herstellung eines einteiligen Pressfittings aus Metall | EP02090282.1 | 2002-07-26 | EP1281456A2 | 2003-02-05 | Sedlak, Bernd |
Die Erfindung betrifft ein Verfahren zur Herstellung eines einteiligen Pressfittings aus Metall, bestehend aus einem Grundkörper und mindestens einem verpressbaren Anschlusselement, bei dem ausgehend von einem Band zunächst ein längsnahtgeschweißtes Rohr erzeugt wird, das in einem weiteren Schritt in einzelne Abschnitte aufgeteilt wird und deren Enden bearbeitet werden und dieser Rohrabschnitt abschließend über eine Vielzahl einzelner Umformschritte in einen einteiligen Pressfitting mit der vorgegebenen Kontur und Abmessung umgeformt wird. Dabei wird unter Wegfall der Rohrherstellung, Aufteilung und Endenbearbeitung vom Band (1) ein Stück abgetrennt oder heraus gearbeitet und mittels Tiefziehen ein Blechnapfkörper (5) hergestellt, der über mehrere Umformschritte und mindestens einem Abtrennschnitt zum vorgegebenen einteiligen Pressfitting umgeformt wird. |
||||||
| 159 | PROCESS FOR MANUFACTURING A CAPTIVE SCREW | EP99915334.9 | 1999-04-08 | EP1117501A1 | 2001-07-25 | ELLIS, Thomas, J.; MCCORMACK, Edward, A.; DICKERSON, Harry, L. |
| A method of making a knob (30) and ferrule (50) for a captive screw (10) is disclosed, the knob (30) integrally attached to the screw (10), the ferrule (50) attachable to a panel (60). The method of making the knob (30) includes providing an aluminum alloy base metal for the knob (30), pressing by cold-forming the base material into a generally cylindrical cup-shaped article (32) using at least one pressing operation, the cup having a generally cylindrical side wall (33), removing any base material situated outside of the perimeter of the cup-shaped article (32) and providing a hole in the bottom of the cup (32), coaxial with the hollow cylindrical walls (33) of the cup (32), thereby forming the knob (30). | ||||||
| 160 | Thin, forged magnesium alloy casing and method for producing the same | EP99105853.8 | 1999-03-23 | EP0945199A3 | 2001-04-25 | Seki, Isao; Hama, Shigeo; Taniike, Shigehiro; Watanabe, Fukashi; Kakizaki, Masahiko; Seki, Shinji |
A thin, forged magnesium alloy casing is integrally constituted by a thin plate with projections on either or both surfaces, and the thin plate is as thin as about 1.5 mm or less. The thin forged casing can be produced by (a) roughly forging a magnesium alloy plate to form an intermediate forged product under the conditions of a preheating temperature of the magnesium alloy plate of 350 to 500 °C, a die temperature of 350 to 450 °C, a compression pressure of 3 to 30 kbar, a compressing speed of 10 to 500 mm/s and a compression ratio of 75 % or less; and (b) precisely forging the intermediate forged product under the conditions of a preheating temperature of the intermediate forged product of 300 to 500 °C, a die temperature of 300 to 400 °C, a compression pressure of 1 to 20 kbar, a compressing speed of 1 to 200 mm/s, and a compression ratio of 30% or less. |
||||||
QQ群二维码
意见反馈
意见反馈