序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 Molding method and apparatus of the thick walled tubular product with edge JP2003163445 2003-06-09 JP4425569B2 2010-03-03 塩川  清二
2 Cold-forming dies and cold-forming process EP90311034.4 1990-10-09 EP0426312A3 1991-12-27 Walker, Billy R.; Dean, Robert E.; Emmons, George B.

Progressive step and compound dies (50,66,78) are employed in a cold-working process to form a metallic pre-form (42) of selected mass into a precision-finished, pore-free, annular bushing (64) with a mass substantially equal to that of the pre-form (42), for use as a battery terminal which allows the fracture-free spin-over connection of a stem (46) of the bushing (64) to a battery cover (102) and the close-fit of the bushing (64) on a battery post (103) when the cover (102) is fitted to a battery casing.

3 Method and device for forming thin cylindrical product with thick edge JP2003163445 2003-06-09 JP2004358553A 2004-12-24 SHIOKAWA SEIJI
<P>PROBLEM TO BE SOLVED: To form a stepped cylindrical product, whose thickness is reduced so as to get a thickness deviation ratio of 2 : 1 or more, by only two stages plastic forming, which has a thick edge portion over the wall thickness of a raw material when forming a thick edged cylindrical product from a metallic plate material. <P>SOLUTION: A drawing work of a plate material A is executed without a holddown work by a conical die for the drawing process. At the time of the drawing work, the end edge in the neighborhood of 45° around the plate material A rests on the conical surface of the die, and becomes a semi-finished product A1 with inclined end edges. An ironing process of the cylindrical portion and a protruding diameter shrinking process in its lower part are executed between a forming punch 34 and an arresting die 36 in the two stages plastic forming of the semi-finished product A1 so that the thickness generated through the ironing process supplements the shoulder part at the time of diameter shrinking and a shortage of the thickness in the extruding diameter shrinking portion. The material outer periphery is regulated by the wall surface 40 between opposed surfaces 34-3, 36-3 of the punch 34 and the die 36 to develop the thick end edge (wall thickness t3) and to obtain the thin stepped cylindrical product with the thick end edge by only the two stages plastic forming. <P>COPYRIGHT: (C)2005,JPO&NCIPI
4 Method for manufacturing bearing body JP2002256204 2002-08-30 JP2004092548A 2004-03-25 NAKAYAMA SEIICHI; AOYAMA ATSUSHI
PROBLEM TO BE SOLVED: To provide a durable light weight hemisphere bearing body 1'. SOLUTION: Cylindrical material is cut in a specified dimension in an axial direction and the cut material is used as raw material 1. A first bottomed hole 1C and a second bottomed hole 1D connecting to the same are formed on one end of the raw material 1. After that, the raw material 1 is subjected to preforming to form an outer circumference part 1F on the first bottomed hole 1C side into a conical shape. The raw material 1 under this condition is subjected to finish forming into hemisphere shape as a whole. A hollow hemisphere bearing body 1' is manufactured from this process. COPYRIGHT: (C)2004,JPO
5 Solid state lighting device with improved heatsink US12498856 2009-07-07 US08476812B2 2013-07-02 Wai Kwan Chan; Derek Ian Darley; Antony Paul Van De Ven; Gerald H. Negley
A solid state lighting device includes at least one emitter and a forged heatsink arranged to receive and dissipate heat generated by emitter(s). The heatsink may have a thickness and/or profile that varies in at least two dimensions. Fabrication of a solid state lighting device may include providing a forged heatsink, and mounting at least one solid state emitter in thermal communication with the heatsink. A space or object may be illuminated with a lighting device including at least one solid state emitter and a forged heatsink. The lighting device may be operated responsive to at least one sensor arranged to sense temperature and/or at least one characteristic of light emitted by the emitter(s).
6 SOLID STATE LIGHTING DEVICE WITH IMPROVED HEATSINK US12498856 2009-07-07 US20110006658A1 2011-01-13 Wai Kwan Chan; Derek Ian Darley; Antony Paul Van De Ven; Gerald H. Negley
A solid state lighting device includes at least one emitter and a forged heatsink arranged to receive and dissipate heat generated by emitter(s). The heatsink may have a thickness and/or profile that varies in at leats two dimensions. Fabrication of a solid state lighting device may include providing a forged heatsink, and mounting at least one solid state emitter in thermal communication with the heatsink. A space or object may be illuminated with a lighting device including at least one solid state emitter and a forged heatsink. The lighting device may be operated responsive to at least one sensor arranged to sense temperature and/or at least one characteric of light emitted by the emitter(s).
7 Method of making a thin wall nozzle US10319906 2002-12-16 US07231716B2 2007-06-19 Brian L. Verilli
A novel method of making a nozzle by forcing a malleable metallic disk into a series of cavities in progression using punches to draw down a formed section so metal can be pulled into the shape of the next cavity in the series. Each cavity differs in size and shape, progression of the nozzle to the next cavity occurs until the metal is incrementally hardened by each step in the progression and the desired shape is formed. Wall thickness of the nozzle can be selectively varied in each section drawn down or pulled. Exceptionally accurate nozzles can be made with smooth, hard, rigid, walls of varying and constant thickness at low cost.
8 Method and apparatus for producing thin walled tubular product with thick walled flange US10848068 2004-05-19 US20040244459A1 2004-12-09 Seiji Shiokawa
Method and apparatus for producing a thin walled tubular product with thickened flange. A first stage metalworking (drawing) of a circular plate material A is done by using a first die set 22 having a conical die 24 and a drawing punch 26 is done in a manner that the end of the blank plate is remained on the conical surface 24-1 of the die, so that a semi-finished tubular product A1 with a inclined flange A1-1 is obtained. Then, a second stage metalworking (drawing) of the semi-finished tubular product A1 is done by a second die set 32 having a shaping punch 34 and a restraint die 36. The semi-finished tubular product A1 is held by the restraint die 36 and the shaping punch 34 is introduced into the semi-finished tubular product A1 for effecting a wall thickness reduction under ironing principle while forming a stepped portion. Simultaneous with the execution of the second stage drawing, a flattening of the flange is done while restriction diameter expansion by a wall 40, thereby obtaining a thickened flattened flange A2-3.
9 Method of making a thin wall nozzle US10319906 2002-12-16 US20030071149A1 2003-04-17 Brian L. Verilli
A novel method of making a nozzle by forcing a malleable metallic disk into a series of cavities in progression using punches to draw down a formed section so metal can be pulled into the shape of the next cavity in the series. Each cavity differs in size and shape, progression of the nozzle to the next cavity occurs until the metal is incrementally hardened by each step in the progression and the desired shape is formed. Wall thickness of the nozzle can be selectively varied in each section drawn down or pulled. Exceptionally accurate nozzles can be made with smooth, hard, rigid, walls of varying and constant thickness at low cost.
10 Process for producing hollow forging with frusto conical exterior andinterior surfaces US3740993D 1971-11-12 US3740993A 1973-06-26 MOORE C
A hollow open-ended frusto-conical forging having substantially uniform wall-thickness from end-to-end, for use as a reducer in pipe lines and the like, is made by first obtaining a hollow work-piece having a frusto-conical exterior surface and substantially cylindrical interior surface. This work-piece is heated to forging temperature and placed around a horizontally disposed cylindrical mandrel which is supported on the bed of a power press and the platen of the power press is pressed against the major portion of the work-piece which is internally supported by the mandrel to obtain a tapering reduction in the major portion of the work-piece thereat. The platen is then raised and the work-piece is partially rotated to position an immediately adjacent segment of the work-piece between the platen and mandrel. These steps are continued, with the intermediate raising of the platen and partial rotation of the work-piece until the inside and outside diameters of the work-piece are of acceptable dimensions throughout a 360* arc. The power press is then adjusted to increase the lowermost position of the platen with respect to the mandrel, and the steps described are repeated throughout a 360* arc as before. This is continued until the final hollow product with frusto-conical exterior and interior surfaces of the desired dimensions has been obtained.
11 Die for forging insulator caps US64944923 1923-07-05 US1709328A 1929-04-16 STOVER CLINTON W
12 Method of forging insulator caps US63718723 1923-05-07 US1491965A 1924-04-29 BARNEY NELSON
13 Process for manufacturing metal parts by free forging and drop forging in a press US98201 1993-05-07 US5615465A 1997-04-01 Dominique Broussoux; Jean Collard; Marie-Therese Daumas
The process for manufacturing parts of revolution which are made from a high-density metal with great regularity of reproducibility, especially as regards the homogeneity of the matter.It consists in carrying out the following steps:forging in three dimensions by successive upsetting and drawing-out operations carried out in three perpendicular directions;closed-die forging; andrecrystallisation heat treatment.Application to the manufacture of hollow-charged coatings made of tantalum.
14 Process for obtaining parts made of copper of very fine texture from a billet made by continuous casting US497007 1990-03-20 US5039355A 1991-08-13 Marie T. Daumas; Jean Collard; Gerard Tost
The process according to the invention makes it possible to form parts from copper of high purity and fine structure.Beginning with a billet (1) made by continuous casting, it includes the following main phases:a kneading of the billet (1, 4) comprising upsetting and drawing cycles;cutting of the billet into blanks (8) each intended to form one finished part;an operation of die forging (9, 12) at ambient temperature; anda recrystallization heat treatment to obtain a grain size of the copper of less than 40 micrometers.The invention is applicable to the production of internal liners for shaped charges.
15 Cold forming dies and cold forming process US429929 1989-10-30 US4945749A 1990-08-07 Billy R. Walker; George B. Emmons; Robert E. Dean
Progressive step and compound dies are employed in a cold working process to form a metallic preform of selected mass into a precision-finished, pore-free, annular bushing with a mass substantially equal to that of the preform for use as a battery terminal which allows the fracture free spin over connection of the stem of the bushing to a battery cover and the close fit of the bushing on the battery post when the cover is fitted to the battery casing.
16 Process and apparatus for producing an electrical battery pole or terminal US56383 1987-06-01 US4776197A 1988-10-11 Giorgio Scott
An electrical battery pole or terminal (50) is cold-produced by means of a process comprising axial compression at room temperature of an essentially cylindrical metal element (42) between a first and a second portion of die (1) and (2), travelling one opposite to the other, of which the first (1) forms that part which will be the protruding part (13) of the battery pole or terminal and the second (2) portion of die, by subjecting the lower part of the metal block to compression, forms the electrical battery pole's lower part, which is provided with shaped portions (35) forming a number of ribs.
17 Method of forming insulator caps US55701831 1931-08-14 US1983334A 1934-12-04 AUSTIN ARTHUR O
18 Method of making insulator caps US55054831 1931-07-13 US1970658A 1934-08-21 KORTICK JOHN C
19 Built-up sectional forging and method of making same US19537327 1927-05-31 US1723036A 1929-08-06 HIGGINS GEORGE H
20 Method of eosgimtg ibsitlatok caps US1678594D US1678594A 1928-07-24
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