JPS628972Y2 - - Google Patents
Info
- Publication number
- JPS628972Y2 JPS628972Y2 JP15630780U JP15630780U JPS628972Y2 JP S628972 Y2 JPS628972 Y2 JP S628972Y2 JP 15630780 U JP15630780 U JP 15630780U JP 15630780 U JP15630780 U JP 15630780U JP S628972 Y2 JPS628972 Y2 JP S628972Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- vertical groove
- center
- cutting
- deep
- 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
- 238000005520 cutting process Methods 0.000 claims description 72
- 230000001154 acute effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630780U JPS628972Y2 (en)van) | 1980-10-30 | 1980-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630780U JPS628972Y2 (en)van) | 1980-10-30 | 1980-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5781015U JPS5781015U (en)van) | 1982-05-19 |
| JPS628972Y2 true JPS628972Y2 (en)van) | 1987-03-02 |
Family
ID=29515475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15630780U Expired JPS628972Y2 (en)van) | 1980-10-30 | 1980-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS628972Y2 (en)van) |
-
1980
- 1980-10-30 JP JP15630780U patent/JPS628972Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5781015U (en)van) | 1982-05-19 |
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