子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | 鍛鋼ロールの製造方法 | JP2012035164 | 2012-02-21 | JP5672255B2 | 2015-02-18 | 洋史 大西; 山中 章裕; 章裕 山中; 水上 英夫; 英夫 水上; 知暁 瀬羅; 英良 山口 |
| 182 | Method of manufacturing a bearing ring member constituting the wheel support hub unit | JP2004044237 | 2004-02-20 | JP4352927B2 | 2009-10-28 | 清司 大塚; 一登 小林; 功 新藤; 浩平 森 |
| A race member in a hub unit (1d) for supporting a wheel. The race member includes a cylinder portion (19b), a flange portion (5b) bend radially outward from the cylinder portion (19b), and a continuous portion (24) that integrally connects the cylinder portion (19b) with the flange portion. The race member is integrally formed by subjecting a metal plate (26) to punching and cold plastic working. The continuous portion is larger in thickness than the metal plate. | ||||||
| 183 | Manufacturing method for extremely small roll bearing | JP2002044878 | 2002-02-21 | JP2003245748A | 2003-09-02 | OBARA RIKURO |
| <P>PROBLEM TO BE SOLVED: To greatly reduce material loss, suppress resultant environmental pollution, reduce a manufacturing cost and improve manufacturing efficiency in manufacturing an outer and inner rings of an extremely small roll bearing. <P>SOLUTION: A bar member is press-cut to obtain a first blank and then the first blank is forged to obtain a disk like final blank. Furthermore, the final bank is separated to obtain the outer and inner ring blanks 30, 40. <P>COPYRIGHT: (C)2003,JPO | ||||||
| 184 | Aluminum ball manufacturing method, compressor shoe manufacturing method, and compressor shoe | JP2001345754 | 2001-11-12 | JP2003145247A | 2003-05-20 | TOMITA MASANOBU; TSUSHIMA HIROMASA |
| PROBLEM TO BE SOLVED: To provide aluminum balls as a material for an aluminum shoe of high dimensional accuracy. SOLUTION: A cut piece 172 is obtained by shear-cutting an aluminum alloy round bar 170 in a cutting step S1. Next, in an aluminum shoe stock forming step (an aluminum ball forming step) S2, an intermediate shape stock 187 is obtained by forming the cut piece 172 by a semi-sealed die forging. The intermediate shape stock 187 has a spherical shape of substantially same shape and dimension as an aluminum shoe stock 160 being an aluminum ball, and excess material is formed as burrs 190 on an outer circumferential surface thereof. The burrs 190 are removed in a deburring step S3 to obtain a substantially- shaped stock 229, and by improving the surface roughness and the dimensional accuracy via a grinding step S4, the aluminum shoe stock 160 of high dimensional accuracy is obtained. The shearing and the die forging can be performed rapidly, and the productivity of manufacturing aluminum balls is improved. The aluminum shoe stock 160 of excellent dimensional accuracy is obtained, and thus, the dimensional accuracy of a shoe manufactured out of the stock 160 is also improved. | ||||||
| 185 | Shoe for swash plate type compressor and its manufacture | JP29899197 | 1997-10-30 | JPH11132143A | 1999-05-18 | TANAKA TADAHISA; KATO YOSHIO; YAMAMOTO TADAAKI |
| PROBLEM TO BE SOLVED: To enhance abrasion resistance and seizure resistance of a shoe for a swash plate type compressor so as to prolong its service lifetime. SOLUTION: A nitride layer is formed at the surface of a hemispherical shoe 10 provided with a projecting sphere 14 in contact with a spherical seat 4b of a piston 4 and a flat slide-contact surface 18 in contact with a swash plate 2. The hemispherical shoe 10 is manufactured by die forging and flashing, followed by a nitriding treatment, to form a hardened layer thereof; subsequently, by tempering and grinding, followed by pressing to mold it into a hemispherical shape. Finally, it is subjected to quenching, barreling, surface grinding and surface buffing, thus providing a shoe product. COPYRIGHT: (C)1999,JPO | ||||||
| 186 | JPH0333419B2 - | JP6974983 | 1983-04-20 | JPH0333419B2 | 1991-05-17 | MATSUMOTO TOSHIHARU; IWAMOTO SHIGEO |
| 187 | Upset forging press | JP18901689 | 1989-07-24 | JPH02142635A | 1990-05-31 | YUURUGEN HEHITO |
| PURPOSE: To move a punch with desired precision by forming a cam disk for a punch holder into a double cam disk and combining a contacting roller to each of the disk. CONSTITUTION: A die 1 is fixed and the punch 5 is driven by a toggle lever 20 via a punch holder 6, a pressurizing member 16, an adjusting key 17 and a press carriage 19. The contacting roller 30 is rolled along the cam disk 32 and the contacting roller 31 is rolled along the cam disk 33, and the toggle lever 20 is driven via a bell crank 27 and a link 25. When the cam disk of two cam disks 32, 33 is suitably designed and the dimension and spatial supporting form of the toggle lever 20 and the link 25 are suitably selected. the punch 5 is desirably moved whenever it is desired. An optimal time for drawing a gripper out of an intermediate chamber in addition to an action by an optimal pressing force during a forming stage are obtained. COPYRIGHT: (C)1990,JPO | ||||||
| 188 | Production of semispherical body | JP6974983 | 1983-04-20 | JPS59193712A | 1984-11-02 | MATSUMOTO TOSHIHARU; IWAMOTO SHIGEO |
| PURPOSE:To improve the life of dies and to produce easily a semispherical body with high accuracy by using a bottom die having a semispherical concave surface and a top die formed with a plane surface contrasting with said surface and pressing a spherical body finished to high dimensional accuracy by means of such dies. CONSTITUTION:A steel ball 11 which has the same volume as the volume of a desired semispherical body 25 and is finished to the high dimensional accuracy equivalent to the diameter and out of roundness of a steel ball, etc. for a ball bearing prior to hardening is put into dies 18 constituting of a bottom die 13 formed with a semispherical concave surface 12 on the top end face and a top die 17 formed with a tray-shaped recessing surface 16 having a circular plane 14 recessed on the top end face and a tapered surface 15 in the outside circumferential part thereof, then the dies 17, 13 are approached to each other to compress the ball 11. Both dies 17, 13 are spaced from each other and a knock-out pin 19 is lifted to obtain the semispherical body 25 having a top surface 23 consisting of a plane surface 20 and a tapered surface 21, a semispherical surface 24 having good surface roughness and a height H of high accuracy. | ||||||
| 189 | Monoblock forming of roller | JP12583082 | 1982-07-21 | JPS5919048A | 1984-01-31 | MAKINO MITSUNARI |
| PURPOSE:To manufacture a hollow roller having boss parts on both ends at low cost, by forming a hollow roller member having a boss part on an end by forging, and impact drawing another open end by a die. CONSTITUTION:A hollow roller 3 of Al alloy etc. having a boss part 1 on an end and an opening 2 on another end is formed by forging. The roller 3 is fixed by a chuck 7 and a stopper 8, and the opening 2 of another end is impact drawn in the direction A by plural dies 5a-5d. The opening of the roller 3 is drawn successively by die faces 6a-6d of the dies 5a-5d, and formed gradually to the shape of boss part as 2a-2c. Finally it is formed to specified boss part 4 by impact drawing by the die 5d, and finish formed by machining. Thus, a boss part is formed in a body on the open end of the roller by simple process and at high working efficiency. | ||||||
| 190 | Manufacture of hollow spherical body | JP4308882 | 1982-03-17 | JPS58159940A | 1983-09-22 | KAWASE TAKESHI; KAWASE MASAYASU |
| PURPOSE:To manufacture a hollow spherical body simply, by forming the body of a sphere by plastic working a tube or a steel plate, providing screw caps of arcuate face having the same thickness, forming thread on inner peripheral face of the opening of the sphere body and outer peripheral face of the screw caps and threadedly engaging them. CONSTITUTION:A straight cylindrical tube material 4 is cut to a prescribed length and the body of a sphere 7 is formed by upper and lower bowl-shaped dies 5, 6. Then, internal threads are cut on inner peripheral faces of openings 8, 9 of the sphere body 7. Further, caps 10, 11 having arcuate faces of the same curvature with the body of the sphere 7. External threads that engage with internal threads cut on inner peripheral faces of openings 8, 9 of the body of the sphere 7 are cut on outer peripheral faces. After screwing the caps 10, 11 in the openings 8, 9 of the body of the sphere 7, outer face of the screwed part is welded. After welding, the surface of the sphere is polished, and a hollow spherical body is obtained. | ||||||
| 191 | Manufacture of tractor track roller with flange for car travelling in section except highway | JP17824982 | 1982-10-08 | JPS5876378A | 1983-05-09 | DONARUDO JIYOSEFU DEIIMAA; RARUFU DONARUDO DERIO |
| 192 | Manufacture of roller for special industrial use | JP6497581 | 1981-04-28 | JPS57181739A | 1982-11-09 | MARUMO TAKAKAZU |
| PURPOSE:To obtain a roller which is high in its parallel degree and true circular degree in a simple and easy way without cutting, grinding and buffing, by repeatedly subjecting round rod-like slag of an Al alloy to cold forging, and after that, performing its heat treatment to prescribed hardness in the course of extrusion working before the final extrusion working. CONSTITUTION:For instance, when obtaining a body 1 of a backup roller of a printer, at first, round rod-like slab (a) of an Al alloy which is cut to prescribed dimensions is sized, and after that, extrusion forming of cold forging is repeated in order, and worked slag a' is obtained. It is subjected to heat treatment so as to be its hardness about >=HRB50. After that, it is formed by reduction-working, and a desired roller body 1 is obtained. | ||||||
| 193 | Production of hollow body by warm forging | JP939481 | 1981-01-23 | JPS57124541A | 1982-08-03 | MINAMI TOSHIHIRO; YOSHIDA KUNJIYOU |
| PURPOSE:To make production process simple and to improve working efficiency by warm forging a heated metallic blank material with a punch side master mold having a retractable mandrel in the axial center part thereby producing a hollow body in a breath with the same mold. CONSTITUTION:A heated steel material A is inserted between a die side metallic mold 1 and a punch side submold 2, and the mold 2 is pressed to the mold 1, whereby the material is preforged. At this time, the lower part of the material A is formed to a semispherical shape. The mold 2 is moved upward, the mold 8 is replaced with the mold 2, and with a part of a mandrel 9 held projected from the mold 8 to the die side, said die is pressed to the die 1, whereby the material A is formed to a spherical shape. The mandrel 9 is then advanced to blank part of the material A into the die side hole, thereby forming a hollow steel ball A'. The remaining blank material B is ejected upward by means of a knockout pin 6, and the ball A' is released from the mold 1. | ||||||
| 194 | JPS57500916A - | JP50157680 | 1980-06-26 | JPS57500916A | 1982-05-27 | |
| Concentric recessing a tube endwall in integrated conveyor idler manufacture inverts the end produced by doming the edges together and is carried out on a blank rotating at forging temperature. To expand the range of suitable blanks and the dimensioning of the end product, forming is in two stages. In the first the domed end (2) of the blank (1) is formed to produce a flat surface (5) larger in diameter (D) than the eventual recess base by amounts between 2R and 3R where R is the free bend radius of the blank wall. - In the second stage, final forming is conjoined with inversion by a press tool (6) of the same shape and size as the eventual recess which is forced into the flat area (5). A friction reducing roller etc (7) works at a tangent to the blank to complete the endwall forming process. Press tool and roller speed ratio should be 0.40 to 0.75. In the pre-forming operation the endwall should be truncatedly coned with the generatrix at 30 - 40 deg. PHI to the main axis. This ensures optimum metal flow and distribution in the final product.(. 1-5) | ||||||
| 195 | Press for manufacturing workpiece such as sphere from wire rod section | JP5191181 | 1981-04-08 | JPS5719122A | 1982-02-01 | BUIRUHERUMU REOPORUTO |
| 196 | JPS5444254B2 - | JP8390876 | 1976-07-13 | JPS5444254B2 | 1979-12-25 | |
| 197 | JPS5440455B2 - | JP14054577 | 1977-11-22 | JPS5440455B2 | 1979-12-04 | |
| 198 | JPS5246180B2 - | JP7738573 | 1973-07-09 | JPS5246180B2 | 1977-11-22 | |
| 199 | JPS4943866A - | JP7738573 | 1973-07-09 | JPS4943866A | 1974-04-25 | |
| 200 | Molding set for cold forming machine | JP2011178464 | 2011-08-17 | JP5504222B2 | 2014-05-28 | イー クリンツリン ドナルド; ダブリュー ボードナー マーク |
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