JPH01164018U - - Google Patents
Info
- Publication number
- JPH01164018U JPH01164018U JP6205488U JP6205488U JPH01164018U JP H01164018 U JPH01164018 U JP H01164018U JP 6205488 U JP6205488 U JP 6205488U JP 6205488 U JP6205488 U JP 6205488U JP H01164018 U JPH01164018 U JP H01164018U
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- flute
- tip
- gullet
- front cutting
- 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.)
- Pending
Links
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Description
第１図は本考案のチツプブレーカー付き環状穿
孔刃物の斜視図、第２図は第１図下部の拡大図、
第３図は従来品の切屑生成と巻付きを説明した図
である。
図面の主要部を表わす符号の説明、１……チツ
プブレーカー付き環状穿孔刃物、４……切屑先端
の突き当たり部、６……超硬チツプの切刃の曲面
、７，８，９，１０……切屑生成とその移動状況
。
Fig. 1 is a perspective view of the annular perforating cutter with a chip breaker of the present invention, Fig. 2 is an enlarged view of the lower part of Fig. 1,
FIG. 3 is a diagram illustrating the generation and wrapping of chips in a conventional product. Explanation of the symbols representing the main parts of the drawings: 1... Annular drilling blade with chip breaker, 4... Abutting part of tip of chip, 6... Curved surface of cutting edge of carbide chip, 7, 8, 9, 10... Chip formation and its movement status.
Claims (1)
刃掬角から延長したＲ曲線の曲線延長上に障害物
となる突当たり部を形成していることを特徴とす
る環状穿孔刃物のチツプブレーカー。 (2) 先端切刃の前切刃（掬刃）とガレツトフル
ートの関係が円周方向で前切刃―ガレツト―フル
ート−突当たり物の順に切屑の進行が形成されフ
ルートの先端は刃先先端に突抜けずに止まつてい
る。半径方向では前切刃とガレツトは円筒肉厚を
抜けきつているがフルートの深さは肉厚の約２／
３を有し突当り物は肉厚と同等であることを特徴
とする環状穿孔刃物のチツプブレーカー。[Scope of Claim for Utility Model Registration] (1) In the tip cutting edge of a cylindrical cutter body, an abutting portion that becomes an obstacle is formed on the extension of the R curve extending from the front cutting edge scooping angle. A chip breaker with an annular perforation blade. (2) The relationship between the front cutting edge (scooping blade) of the tip cutting edge and the gullet flute is in the circumferential direction, and chips are formed in the order of the front cutting edge - gullet - flute - impact object, and the tip of the flute is the tip of the cutting edge. It has stopped without breaking through. In the radial direction, the front cutting edge and gullet pass through the cylinder wall thickness, but the flute depth is about 2/2 of the wall thickness.
A chip breaker having an annular perforating blade having a thickness of 3 and having an abutment having a thickness equal to that of the wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6205488U JPH01164018U (en) | 1988-05-10 | 1988-05-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6205488U JPH01164018U (en) | 1988-05-10 | 1988-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01164018U true JPH01164018U (en) | 1989-11-15 |
Family
ID=31287689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6205488U Pending JPH01164018U (en) | 1988-05-10 | 1988-05-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01164018U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6241767U (en) * | 1985-09-02 | 1987-03-12 |
-
1988
- 1988-05-10 JP JP6205488U patent/JPH01164018U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6241767U (en) * | 1985-09-02 | 1987-03-12 |