JPS59193614U - carbide drill - Google Patents

carbide drill

Info

Publication number
JPS59193614U
JPS59193614U JP8260183U JP8260183U JPS59193614U JP S59193614 U JPS59193614 U JP S59193614U JP 8260183 U JP8260183 U JP 8260183U JP 8260183 U JP8260183 U JP 8260183U JP S59193614 U JPS59193614 U JP S59193614U
Authority
JP
Japan
Prior art keywords
tip
drill
discharge groove
chip discharge
carbide
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
Application number
JP8260183U
Other languages
Japanese (ja)
Other versions
JPH0318091Y2 (en
Inventor
嶋野　高正
細野　秀治
Original Assignee
三菱マテリアル株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱マテリアル株式会社 filed Critical 三菱マテリアル株式会社
Priority to JP8260183U priority Critical patent/JPS59193614U/en
Publication of JPS59193614U publication Critical patent/JPS59193614U/en
Application granted granted Critical
Publication of JPH0318091Y2 publication Critical patent/JPH0318091Y2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

添付図はこの考案の一実施例を示し、第１図はその底面
親図、第２図はその一部省略側面図である。 １・・・・・・ドリル本体、２・・・・・・切屑排出溝
、３・・・・・・切刃チップ、４・・・・・・切刃、４
ａ・・・・・・内端縁、５・・・・・・ヒール部、６・
・・・・・硬質部材（硬質部）、Ｏ・・・・・・回転中
心軸線。The attached drawings show an embodiment of this invention, with FIG. 1 being a bottom view and FIG. 2 being a partially omitted side view. 1... Drill body, 2... Chip discharge groove, 3... Cutting blade tip, 4... Cutting blade, 4
a...Inner edge, 5...Heel part, 6.
...Hard member (hard part), O...Rotation center axis.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ドリル本体の先端部外周に切屑排出溝を設け、この切屑
排出溝の回転方向を向く壁面の先端部に超硬合金製の切
刃チップを設け、この切刃チップの先端部に内端縁が前
記ドリル本体の回転中心軸線から０．１咽〜１．２５ｍ
ｍ離された切刃を形成してなる超硬ドリルにおいて、前
記切屑排出溝の壁面の少なくともヒール部側の先端部に
、前記ドリル本体より硬度が高い材質からなる硬質部を
設けたことを特徴とする超硬ドリル。A chip discharge groove is provided on the outer periphery of the tip of the drill body, and a cutting tip made of cemented carbide is provided at the tip of the wall surface facing the rotation direction of the chip discharge groove. 0.1 to 1.25 m from the rotation center axis of the drill body
A carbide drill having cutting blades spaced apart by m, characterized in that a hard part made of a material harder than the drill body is provided at least at the tip end on the heel side of the wall surface of the chip discharge groove. Carbide drill.
JP8260183U 1983-05-31 1983-05-31 carbide drill Granted JPS59193614U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8260183U JPS59193614U (en) 1983-05-31 1983-05-31 carbide drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8260183U JPS59193614U (en) 1983-05-31 1983-05-31 carbide drill

Publications (2)

Publication Number Publication Date
JPS59193614U true JPS59193614U (en) 1984-12-22
JPH0318091Y2 JPH0318091Y2 (en) 1991-04-17

Family

ID=30212556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8260183U Granted JPS59193614U (en) 1983-05-31 1983-05-31 carbide drill

Country Status (1)

Country Link
JP (1) JPS59193614U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS563118A (en) * 1979-06-25 1981-01-13 Mitsubishi Metal Corp Coated miniature drill made of hard alloy metal
JPS5652110A (en) * 1979-10-02 1981-05-11 Mitsubishi Metal Corp Rotary cutting tool with bottom blade

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS563118A (en) * 1979-06-25 1981-01-13 Mitsubishi Metal Corp Coated miniature drill made of hard alloy metal
JPS5652110A (en) * 1979-10-02 1981-05-11 Mitsubishi Metal Corp Rotary cutting tool with bottom blade

Also Published As

Publication number Publication date
JPH0318091Y2 (en) 1991-04-17

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