JPS63161611U - - Google Patents
Info
- Publication number
- JPS63161611U JPS63161611U JP5530987U JP5530987U JPS63161611U JP S63161611 U JPS63161611 U JP S63161611U JP 5530987 U JP5530987 U JP 5530987U JP 5530987 U JP5530987 U JP 5530987U JP S63161611 U JPS63161611 U JP S63161611U
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- drill
- main body
- carbide
- utility
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 230000004323 axial length Effects 0.000 claims 1
- 238000005219 brazing Methods 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 150000004767 nitrides Chemical class 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 238000005245 sintering Methods 0.000 claims 1
- 239000011195 cermet Substances 0.000 description 2
Landscapes
- Drilling Tools (AREA)
Description
第１図、第２図ａ、第３図、第４図及び第５図
ａはいずれもこの考案の一実施例を示す要部の側
面図、第２図ｂは同図ａのドリルのサーメツトチ
ツプの背面図、第５図ｂは同図ａのドリルの正面
図である。
１，１′……サーメツトチツプ、２……切刃、
３，５……切屑排出溝、４……本体部、６……接
合部、７，７′……ヒール部、８……Ｖ溝、９…
…Ｖ突起、１０……平面、１１……キー、１２…
…キー溝、１３……溝。
Figures 1, 2a, 3, 4 and 5a are side views of essential parts showing an embodiment of this invention, and Figure 2b is a cermet tip of the drill shown in Figure a. FIG. 5b is a front view of the drill shown in FIG. 5a. 1, 1'... Cermet chip, 2... Cutting blade,
3, 5... Chip discharge groove, 4... Body part, 6... Joint part, 7, 7'... Heel part, 8... V groove, 9...
...V protrusion, 10...plane, 11...key, 12...
...keyway, 13...groove.
Claims (1)
対する平均比率がＮ／（Ｃ＋Ｎ）＝０．１〜０．
７の範囲にあるａ，ａ，ａ族金属の炭化物
、窒化物の混合物又は炭窒化物中に、少なくとも
５〜２５重量％のＮｉ又はＣｏもしくはその両者
と不可避不純物とから成る結合金属の含まれたサ
ーメツトで形成し、かつ、その切刃部の軸方向長
さはドリル直径の１〜３倍に設定し、この切刃部
とＣｏを含有するＷＣ超硬合金で形成した本体部
とを一体に接合して成る超硬ドリル。 (2) 上記本体部の超硬合金のＣｏ含有量が５重
量％以上であることを特徴とする実用新案登録請
求の範囲第(1)項記載の超硬ドリル。 (3) 上記本体部は先端に半径方向の溝を有し、
この溝内に、巾がドリル径にほぼ相当し、厚みは
ドリル径のほぼ２０〜４０％に相当する切刃部が
挿入されて接合されていることを特徴とする実用
新案登録請求の範囲第(1)項又は第(2)項記載の超
硬ドリル。 (4) 上記切刃部と本体部は、軸方向突合せ部に
、いずれか一方が凹面、他方がこれに対応した凸
面の相互嵌合部を有していることを特徴とする実
用新案登録請求の範囲第(1)項又は第(2)項記載の
超硬ドリル。 (5) 上記切刃部と本体部の接合が、焼結熱で生
じた成分の相互拡散層を介して行なわれているこ
とを特徴とする実用新案登録請求の範囲第(1)項
乃至第(4)項のいずれかに記載の超硬ドリル。 (6) 上記切刃部と本体部の接合が鑞付けによつ
て行なわれていることを特徴とする実用新案登録
請求の範囲第(1)項、第(2)項又は第(4)項に記載
の超硬ドリル。[Scope of Claim for Utility Model Registration] (1) The cutting edge of the drill has an average ratio of nitrogen content to carbon content of N/(C+N)=0.1 to 0.
Containment of a binding metal consisting of at least 5 to 25% by weight of Ni or Co or both and unavoidable impurities in the carbide, nitride mixture or carbonitride of group a metals in the range of 7. The axial length of the cutting edge is set to 1 to 3 times the drill diameter, and the cutting edge and the main body made of Co-containing WC cemented carbide are integrated. A carbide drill made by joining. (2) The cemented carbide drill according to claim 1, wherein the Co content of the cemented carbide of the main body is 5% by weight or more. (3) The main body has a radial groove at the tip,
Claims No. 1 for Utility Model Registration characterized in that a cutting edge portion having a width approximately corresponding to the diameter of the drill and a thickness corresponding to approximately 20 to 40% of the diameter of the drill is inserted and joined into this groove. The carbide drill described in paragraph (1) or paragraph (2). (4) A request for registration of a utility model characterized in that the cutting edge portion and the main body portion have mutually fitting portions in the axial abutting portions, one of which has a concave surface and the other a corresponding convex surface. The carbide drill described in item (1) or item (2) of the scope. (5) Utility model registration claims 1 to 1, characterized in that the cutting edge portion and the main body portion are joined through a mutual diffusion layer of components generated by sintering heat. The carbide drill described in any of paragraph (4). (6) Utility model registration claims paragraph (1), (2) or (4), characterized in that the cutting edge portion and the main body portion are joined by brazing. Carbide drill described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5530987U JPS63161611U (en) | 1987-04-10 | 1987-04-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5530987U JPS63161611U (en) | 1987-04-10 | 1987-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63161611U true JPS63161611U (en) | 1988-10-21 |
Family
ID=30883090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5530987U Pending JPS63161611U (en) | 1987-04-10 | 1987-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63161611U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59229431A (en) * | 1983-05-20 | 1984-12-22 | Mitsubishi Metal Corp | Production of cermet having high toughness for cutting tool |
-
1987
- 1987-04-10 JP JP5530987U patent/JPS63161611U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59229431A (en) * | 1983-05-20 | 1984-12-22 | Mitsubishi Metal Corp | Production of cermet having high toughness for cutting tool |
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