专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH01258839A FORGING METHOD 失效
公开(公告)号：JPH01258839A
公开(公告)日：1989-10-16
申请号：JP8478988
申请日：1988-04-05
申请人： SUMITOMO METAL IND
发明人： MIYANO SHIGERU , HISAMITSU SHIGEYUKI , HASHIGUCHI YUKIHIRO , HARADA KEIJI , FUKUYASU TOMIHIKO
IPC分类号： B21J1/06 , B21J5/00
摘要： PURPOSE:To reduce the forging cost of a large-sized super metal, etc., by removing the plate stock of the specified temp. in the shape corresponding to the block divided into the work face whose eccentric load is less than an allowable value after pressurizing it by interposing between a die and the body to be worked and pressurizing it in the specified times. CONSTITUTION:A work face is divided into a center block 11 and the block 12 excepting it so that the eccentric load of a forging machine becomes less than an allowable value. The plate stock 3 in the shape corresponding to the center block 11 is mounted on the body 1 to be worked and pressurized by an upper die 22. The plate stock 3 is made 80-120 deg.C lower than the work temp. The body 1 to be worked is pressurized more than once by the die 22 by removing the plate stock 3. Consequently the forging cost of a large-sized super alloy, etc., can be reduced.

2. 发明专利

JPS55136535A ROUGHENING METHOD IN DIE FORGING 失效
公开(公告)号：JPS55136535A
公开(公告)日：1980-10-24
申请号：JP4326779
申请日：1979-04-10
申请人： SUMITOMO METAL IND
发明人： HISAMITSU SHIGEYUKI , ARAKI KENJI , NISHIGUCHI MASARU
IPC分类号： B21J1/04
摘要： PURPOSE:To obtain rough blanks of proper volume distribution at high precision, by forming plural protruding parts and recess parts on the die sinking faces of top part and bottom part, and absorbing the elongation of wall thickness of the blank compressed by the protruding parts in the recess parts. CONSTITUTION:Plural protruding parts 3 and one long protruding part 3' are formed in the axial direction of shade sinking face face 2A of a top die 2. Similarly, protruding parts 5, 5' are opposedly formed on the die sinking face 4A of a bottom die 4. By using these protruding parts, recess parts are formed in the die sinking faces 2A, 4A, and compression cavities 6, 6' and bulge-out cavity 7 of a blank S are formed. Compression is applied to the blank S of square section or the like which rotates in the compression cavity 6, and the elongation of the wall thickness of the blank S due to compression is absorbed in the bulge-out cavity 7 formed by the recess parts. When this operation is repeated until the cavity 7 is filled up with the blank wall, a rough blank of a proper volume distribution having a part of which sectional area is larger than the blank may be obtained.

3. 发明专利

JPH01258838A FORGING METHOD 失效
公开(公告)号：JPH01258838A
公开(公告)日：1989-10-16
申请号：JP8478888
申请日：1988-04-05
申请人： SUMITOMO METAL IND
发明人： MIYANO SHIGERU , HISAMITSU SHIGEYUKI , HAYAMIZU YASUTO , FUKUYASU TOMIHIKO , SATO YASUHIRO
IPC分类号： B21J5/00
摘要： PURPOSE:To reduce the forging cost of a large-sized superalloy, etc., by constituting the set of a block so that the sum of the loads of the forging machine pressurizing each block is less than an allowable value and that the load may be balanced around the pressurizing center shaft of the forging machine and using the die pressurizing only the set of the block. CONSTITUTION:The sum of the loads of a forging machine is made less than an allowable value at the time when the respective block 31, 32, 33, 34, 35 of the body 11 to be worked is pressurized. The blocks 32, 34 are selected so that the load is balanced around the pressurizing center shaft C-C of the forging machine. The body 11 to be worked is pressurized by an upper die 221. The blocks 31, 33, 35 are then selected and pressurized by an upper die 222. The forging cost of a large-sized superalloy, etc., can thus be reduced.

4. 发明专利

JPS63241118A MANUFACTURE OF LARGE-SIZED TURBINE BLADE 失效
公开(公告)号：JPS63241118A
公开(公告)日：1988-10-06
申请号：JP7571387
申请日：1987-03-27
申请人： SUMITOMO METAL IND
发明人： SATO YASUHIRO , NISHIGUCHI MASARU , MIYANO SHIGERU , HISAMITSU SHIGEYUKI , HAYAMIZU YASUTO
IPC分类号： B21K3/04 , C21D9/00
摘要： PURPOSE:To manufacture a large-sized turbine blade preventing perfectly deformation and residual stress by successively subjecting a turbine blade die-forged in a horizontal state to twisting, forced restraint leveling and heat treating. CONSTITUTION:A Ti-6Al-4V ingot is broken down and rough-forged to form a large-sized turbine blade 1. This blade 1 is die-forged in the (alpha+beta) range from the direction of an arrow with dies for keeping the whole blade 1 from the root 2 to the tip 3 in a horizontal state. The root 2 is then fixed and the blade 1 is successively subjected to hot twisting in the (alpha+') range at a prescribed angle over the full length, forced restraint leveling, cooling to

5. 发明专利

JPH01254338A HOT PUNCHING METHOD FOR FORGED STOCK WITH TORSIONAL MACHINE 失效
公开(公告)号：JPH01254338A
公开(公告)日：1989-10-11
申请号：JP8091088
申请日：1988-03-31
申请人： SUMITOMO METAL IND
发明人： HISAMITSU SHIGEYUKI , KUBO AKIRA , HOSHINO YUZURU
IPC分类号： B21D28/34 , B21J5/10
摘要： PURPOSE:To omit reheating, punching, machining, etc., on the outside of a production line by punching a work piece restrained between an upper and a lower die with strokes of a torsional machine. CONSTITUTION:An upper die base 1 provided with a punch 4 is set on the lower surface of an outer leg 3 of an upper holder 2 of the torsional machine and an upper die 5 through which punches 4 are inserted is hung from this upper die base 1 for applying pressure. Further, the lower die 10 provided with punch holes 13 is mounted on the lower legs 12 of a lower holder 11 and the work piece A is restrained and punched by the use of a vertical stroke only of the torsional machine. In this way, when punching is required in a forging stage, necessary punching can be executed in the production line using a suspended torsional machine.

6. 发明专利

JPS63238942A MANUFACTURE OF LARGE-SIZED TURBINE BLADE 失效
公开(公告)号：JPS63238942A
公开(公告)日：1988-10-05
申请号：JP7381987
申请日：1987-03-26
申请人： SUMITOMO METAL IND
发明人： MIYANO SHIGERU , HISAMITSU SHIGEYUKI
IPC分类号： B21K3/04
摘要： PURPOSE:To forge a large-sized turbine blade with a small capacity forging equipment by performing finish forging with plural split forgings in the case of performing, finish forging, shape forging and torsional forming the perform performed by elongating with forging the ingot of heat resistant alloy for forging after its blooming. CONSTITUTION:A forging stock 1 is divided into plural parts 2-1, 2-2, 2-3, 3-1, 3-2 in finish forging. And in a 1st split forging the parts corresponding to the unforging parts 3-1, 3-2 of dies 4-1, 4-2 are formed in a deep die-milling part 5 so as to forge the parts 2-1, 2-2, 2-3 only. Then, in a 2nd split forging the part corresponding to the unforging parts 2-1, 2-2, 2-3 of dies 7-1, 7-2 is formed in a deep die-milling part 6 so as to forge the parts 3-1, 3-2 only.

7. 发明专利

JPS60102247A SEGMENT FORGING DEVICE OF SPROCKET RIM 失效
公开(公告)号：JPS60102247A
公开(公告)日：1985-06-06
申请号：JP20948083
申请日：1983-11-07
申请人： SUMITOMO METAL IND
发明人： HISAMITSU SHIGEYUKI
IPC分类号： B21J5/02 , B21J13/02 , B21K1/30
摘要： PURPOSE:To omit machine finishing by providing a movable die split to take draft angle between upper and lower fixed dies, pressing it strongly against a tooth form face at the time of pressing and forming a segment by an action. CONSTITUTION:A movable die 11 provided between fixed dies 3, 4 fitted to upper and lower dies 1, 2 can move along a groove on a sliding face 10. A rough forged segment A is placed on the fixed die 4 and pressed in the direction shown by the arrow. Upper and lower dies 3, 4 come close to each other and overlap each other while wedges 5, 8 of the die 3 are pressure contacted and slid to a wedge 6 of the die 4 and a wedge 14 of the movable die 11. At this time, the movable die 11 is pressed elastically against the tooth form part of the segment A and three tooth faces of the segment A are shaped simultaneously. The die is opened after completion of shaping, and the movable die 11 is retreated along the groove by a returning device 15. As shaping can be made at accuracy that allows using material with surface as forged by the mechanism, machine finishing can be omitted.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式