序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
41 Refractory metal pots US10593620 2005-03-23 US20070169529A1 2007-07-26 Peter Jepson
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 computer-implemented finite element modeling assessment method.
42 Thin, forged magnesium alloy casing and method for producing same US09834602 2001-04-16 US20010020498A1 2001-09-13 Isao Seki; Shigeo Hama; Shigehiro Taniike; Fukashi Watanabe; Masahiko Kakizaki; Shinji Seki
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) carrying out a first forging step for 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 350-500null C., a die temperature of 350-450null C., a compression pressure of 3-30 tons/cm2, a compressing speed of 10-500 mm/sec. and a compression ratio of 75% or less; and (b) carrying out a second forging step for precisely forging the intermediate forged product under the conditions of a preheating temperature of the intermediate forged product of 300-500null C., a die temperature of 300-400null C., a compression pressure of 1-20 tons/cm2, a compressing speed of 1-200 mm/sec., and a compression ratio of 30% or less.
43 Method of fabricating shaft from metal plate US147557 1999-01-20 US6006579A 1999-12-28 Mitsuhiro Iseri; Kazuaki Hayashizaki; Yutaka Hino
A method of forming integrally an axis on a metallic plate at an arbitrary position thereof and perpendicular to a surface thereof. A first surface of the metallic plate is place on a first die having a first diameter opening and a second surface of the metallic plate, opposing the first surface, is pressed with a first punch to form a projection from the first surface via half blanking or forward squeezing. The projection has a tip surface extending into the first diameter opening a first distance from the first surface. The first surface of the metallic plate is then placed on a second die having a depression with the projection extending into the depression. The depression has a second diameter and a depth distance greater than the first distance. The second surface of the metallic plate is then contacted with a second punch causing the tip surface of the projection to contact a bottom surface of the depression and form the axial projection via rear-squeezing. The axial projection has a tip surface extending a second distance from the first surface, greater than the depth distance of the depression.
44 Method of manufacturing a hollow point bullet US963752 1997-11-04 US5943749A 1999-08-31 Brian Eugene Swank
A method of manufacturing a hollow point bullet is disclosed. A cavity is formed in an end portion of a slug of generally solid material. A plurality of grooves are formed on an outer surface of the end portion of the slug. A slit is cut through a portion of each of the grooves substantially adjacent a peripheral edge of the end portion. The end portion of the slug is contoured so that the bullet has a desired shape and geometry.
45 Process for manufacturing a captive screw US059735 1998-04-14 US5910052A 1999-06-08 Thomas J. Ellis; Edward A. McCormack; Harry L. Dickerson
A method of making a knob and ferrule for a captive screw is disclosed, the knob integrally attached to the screw, the ferrule attachable to a panel. The method of making the knob includes providing an aluminum alloy base metal for the knob, pressing by cold-forming the base material into a generally cylindrical cup-shaped article using at least one pressing operation, the cup having a generally cylindrical side wall, removing any base material situated outside the perimeter of the cup-shaped cylindrical article, and providing a hole in the bottom of the cup, coaxial with the hollow cylindrical walls of the cup, thereby forming the knob. The method of making the ferrule includes providing a metal base material for the ferrule, pressing the base material, by cold-forming, into a cylindrical article using at least one pressing operation, the cylindrical article having a cylindrical side wall having an outer surface, cold-forming an attachment device an end of the ferrule; and removing any base material situated outside the perimeter of the cylindrical article, thereby forming the ferrule. All major parts of the captive screw, including the knob, ferrule and screw may be cold formed.
46 Method of forming slugs from rod stock US3595058D 1969-01-28 US3595058A 1971-07-27 BENEKE CHARLES J
A method of forming slugs from rod stock which provides a workhardened center and completely eliminates burrs from the slugs. Suitably sized and straightened rod stock is fed to a first press where it is subjected to the action of a pair of cropping dies to form a cylindrical blank. The latter is fed into an extrusion cavity of a second press, the volume of which is slightly more than the volume of the cylindrical blank. When the cylindrical blank is impacted in this extrusion cavity a slug is formed with a work-hardened center and flat, unburred surfaces on the upper and lower peripheral surfaces thereof.
47 Method for the production of metallic pre-forms US13682861 1961-09-08 US3187421A 1965-06-08 HEINZ FELDMANN; GUILLEAUME SCHAMING
48 Method of preparing steel blanks for drawing US54520455 1955-11-07 US3055104A 1962-09-25 ALBERT LYON GEORGE
49 Method and apparatus for forming metal blanks US33306453 1953-01-26 US2792623A 1957-05-21 GIOVANNI MELIDONIS
50 Method of cold working blocks bertween dies US33010353 1953-01-07 US2747266A 1956-05-29 GUILLAUME SCHAMING
51 Apparatus for forming cup-shaped US2371304D US2371304A 1945-03-13
52 Method of making bearings US32896828 1928-12-28 US1867412A 1932-07-12 KLOCKE WILLIAM H
53 Press pot and process of making same US1564225 1925-03-14 US1679464A 1928-08-07 CARVER FRED S
54 Forging device and forging method US14888855 2014-03-11 US09522422B2 2016-12-20 Shuhei Kaneko
A forging device that shapes a raw material for forging includes an upper mold and a lower mold that compress a raw material, an upper punch provided to be pierceable through a first hole part formed in the upper mold, a lower punch provided to be pierceable through a second hole part formed in the lower mold, and a drive control part that performs control of driving the upper and lower molds and control of driving the upper punch and/or the lower punch. In accordance with a decreased amount of a thickness of a raw material portion compressed by the upper punch and the lower punch the drive control part performs drive control to move the raw material portion compressed by the upper and lower molds to a side of the upper mold and enlarge a cylindrical part formed by causing a material to flow into a gap between the upper punch and the second hole part.
55 MANUFACTURING METHOD FOR BEARING OUTER RING US13585878 2012-08-15 US20130205593A1 2013-08-15 Kazuto KOBAYASHI; Hiroshi KOYAMA
Provided is a manufacturing method of an outer ring of a back-to-back arrangement double-row angular ball bearing from a raw material comprising an upsetting, a backward extrusion process, a punching, a rolling and a finishing, wherein an outer diameter of a first intermediate material produced by the upsetting is equal to or smaller than an inside diameter of an inner periphery large diameter portion of the inner circumference of a die used in the backward extrusion process and larger than an inside diameter of an inner periphery small portion of the die, and in a condition with the first intermediate material sitting on the inner periphery inclined portion of the die, the intermediate material is pushed toward a base of the die by a punch, to thereby the middle metal material with the highest cleanliness of the raw material is exposed to two outer ring raceways of the outer ring.
56 Manufacturing method for bearing outer ring US12522311 2008-01-16 US08424208B2 2013-04-23 Kazuto Kobayashi; Hiroshi Koyama
Provided is a manufacturing method of an outer ring (3) of a back-to-back arrangement double-row angular ball bearing from a raw material (10) comprising a upsetting (A to B), a backward extrusion process (C to D), a punching (D to E), a rolling (E to F) and a finishing, wherein an outer diameter of a first intermediate material (11a) produced by the upsetting is equal to or smaller than an inside diameter of an inner periphery large diameter portion (18) of the inner circumference of a die (13) used in the backward extrusion process and larger than an inside diameter of an inner periphery small portion (19) of the die (13), and in a condition with the first intermediate material (11a) sitting on the inner periphery inclined portion (20) of the die (13), the intermediate material (11a) is pushed toward a base of the die (13) by a punch (14), to thereby the middle metal material (29) with the highest cleanliness of the raw material (10) is exposed to the two outer ring raceways (2) of the outer ring (3).
57 Refractory metal pots US10593620 2005-03-23 US08061177B2 2011-11-22 Peter R. Jepson
Computer-implemented processes for making refractory metal pots, including: cutting an a refractory metal ingot into a first workpiece; subjecting the first workpiece to multiple upset forgings, annealings in a vacuum or inert gas to a temperature sufficiently high to cause at least partial recrystallization, forging-backs, and rollings to form a plate; wherein the forged, annealed workpiece undergoes a reduction in thickness after at least one rolling pass and is turned between at least one pass, to form the plate; and deep drawing the plate to form a pot; wherein dimensions of at least one workpiece or plate suitable for processing into a pot are pre-determined with a computer-implemented finite element modeling assessment method.
58 Method for Manufacturing Liner Component US12225431 2007-03-27 US20090127271A1 2009-05-21 Akifumi Muraoka
A method for manufacturing a liner component includes the following five steps. First step of performing hot forging on an Al alloy material containing 0.4 to 1.2 mass % Si and 0.8 to 1.2 mass % Mg, the balance of the alloy material being Al and inevitable impurities, to thereby form a first intermediate product 11A including a dome-shaped portion 13 and a mouthpiece attachment portion 4A having a non-final shape. Second step of performing solution treatment on the first intermediate product 11A to thereby obtain a second intermediate product 11A. Third step of performing preliminary aging treatment on the second intermediate product 11A to thereby obtain a third intermediate product 11A. Fourth step of performing cold working on the mouthpiece attachment portion 4A of the third intermediate product 11A at a reduction ratio of 5 to 30% to thereby obtain a fourth intermediate product 11 in which the mouthpiece attachment portion 4A has a final shape. Fifth step of performing final aging treatment on the fourth intermediate product 11 to thereby obtain a final product. This method enables manufacture of a liner component which can reduce the weight and cost of a pressure vessel liner.
59 Method Of Providing A Solenoid Housing US12102392 2008-04-14 US20080257009A1 2008-10-23 Shreyas R. Mehta; Hassan Cheluva Iyenger Parthasarathy
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.
60 Method for manufacture of a metal shell, and a cup designed to serve as a blank US10521165 2003-07-03 US07225658B2 2007-06-05 Lennart Hakansson, deceased
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.
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