JPH0438896Y2 - - Google Patents
Info
- Publication number
- JPH0438896Y2 JPH0438896Y2 JP4072388U JP4072388U JPH0438896Y2 JP H0438896 Y2 JPH0438896 Y2 JP H0438896Y2 JP 4072388 U JP4072388 U JP 4072388U JP 4072388 U JP4072388 U JP 4072388U JP H0438896 Y2 JPH0438896 Y2 JP H0438896Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball
- upper mold
- machined hole
- workpiece
- steel ball
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 101100328887 Caenorhabditis elegans col-34 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Punching Or Piercing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4072388U JPH0438896Y2 (en]) | 1988-03-28 | 1988-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4072388U JPH0438896Y2 (en]) | 1988-03-28 | 1988-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01143628U JPH01143628U (en]) | 1989-10-02 |
| JPH0438896Y2 true JPH0438896Y2 (en]) | 1992-09-11 |
Family
ID=31267186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4072388U Expired JPH0438896Y2 (en]) | 1988-03-28 | 1988-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0438896Y2 (en]) |
-
1988
- 1988-03-28 JP JP4072388U patent/JPH0438896Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01143628U (en]) | 1989-10-02 |
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