JPH0471618B2 - - Google Patents
Info
- Publication number
- JPH0471618B2 JPH0471618B2 JP28114287A JP28114287A JPH0471618B2 JP H0471618 B2 JPH0471618 B2 JP H0471618B2 JP 28114287 A JP28114287 A JP 28114287A JP 28114287 A JP28114287 A JP 28114287A JP H0471618 B2 JPH0471618 B2 JP H0471618B2
- Authority
- JP
- Japan
- Prior art keywords
- die
- punch
- hollow
- hole
- solid material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 description 30
- 239000011796 hollow space material Substances 0.000 description 17
- 239000011343 solid material Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 16
- 238000005553 drilling Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Gears, Cams (AREA)
- Forging (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28114287A JPH01127133A (ja) | 1987-11-09 | 1987-11-09 | 中空ギアの製造方法 |
| CA000571907A CA1294463C (en) | 1987-07-13 | 1988-07-13 | Method of and apparatus for manufacturing a gear |
| US07/218,248 US4939829A (en) | 1987-07-13 | 1988-07-13 | Method of and apparatus for manufacturing a gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28114287A JPH01127133A (ja) | 1987-11-09 | 1987-11-09 | 中空ギアの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01127133A JPH01127133A (ja) | 1989-05-19 |
| JPH0471618B2 true JPH0471618B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-11-16 |
Family
ID=17634950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28114287A Granted JPH01127133A (ja) | 1987-07-13 | 1987-11-09 | 中空ギアの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127133A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216232A (zh) * | 2018-03-01 | 2019-09-10 | 上海汽车变速器有限公司 | 先冲孔后成形结合齿的整体式结合齿齿轮锻造工艺 |
-
1987
- 1987-11-09 JP JP28114287A patent/JPH01127133A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01127133A (ja) | 1989-05-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |