JPS55120938A - Production of throwaway tip - Google Patents
Production of throwaway tipInfo
- Publication number
- JPS55120938A JPS55120938A JP2922679A JP2922679A JPS55120938A JP S55120938 A JPS55120938 A JP S55120938A JP 2922679 A JP2922679 A JP 2922679A JP 2922679 A JP2922679 A JP 2922679A JP S55120938 A JPS55120938 A JP S55120938A
- Authority
- JP
- Japan
- Prior art keywords
- disc
- throwaway tip
- circular
- production
- compound sintered
- 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.)
- Granted
Links
Abstract
PURPOSE: To facilitate the production of a circular throwaway tip and ensure secure clamping by a method wherein a disc consisting of a hard compound sintered compact is provided with a circular center hole and then used as cutting edge, while the small piece cut away from the disc is utilized as a throwaway tip.
CONSTITUTION: A circular center hole 11 is cut in the central portion of a compound sintered disc 1 by a laser machine or an electric spark machine. The hard sintered compact at the outer peripheral portion of the disc thus produced is used as a cutting edge. The disc-shaped compound sintered body 12 cut away from the disc 1 is used directly as a small circular throwaway tip.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2922679A JPS55120938A (en) | 1979-03-12 | 1979-03-12 | Production of throwaway tip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2922679A JPS55120938A (en) | 1979-03-12 | 1979-03-12 | Production of throwaway tip |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55120938A true JPS55120938A (en) | 1980-09-17 |
JPS5641372B2 JPS5641372B2 (en) | 1981-09-28 |
Family
ID=12270297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2922679A Granted JPS55120938A (en) | 1979-03-12 | 1979-03-12 | Production of throwaway tip |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55120938A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015105471A (en) * | 2013-11-28 | 2015-06-08 | 国立研究開発法人産業技術総合研究所 | Pdc cutter and pdc drill bit for pit drilling |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1598441B1 (en) | 2003-02-26 | 2018-09-26 | Sumitomo Electric Industries, Ltd. | Amorphous carbon film and process for producing the same |
-
1979
- 1979-03-12 JP JP2922679A patent/JPS55120938A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015105471A (en) * | 2013-11-28 | 2015-06-08 | 国立研究開発法人産業技術総合研究所 | Pdc cutter and pdc drill bit for pit drilling |
Also Published As
Publication number | Publication date |
---|---|
JPS5641372B2 (en) | 1981-09-28 |
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