JPS59143618U - 2-blade gun drill - Google Patents

2-blade gun drill

Info

Publication number
JPS59143618U
JPS59143618U JP3611883U JP3611883U JPS59143618U JP S59143618 U JPS59143618 U JP S59143618U JP 3611883 U JP3611883 U JP 3611883U JP 3611883 U JP3611883 U JP 3611883U JP S59143618 U JPS59143618 U JP S59143618U
Authority
JP
Japan
Prior art keywords
gun drill
center
tip
blade
cutter
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
JP3611883U
Other languages
Japanese (ja)
Other versions
JPS6312892Y2 (en
Inventor
糟谷　博
梅本　直治
Original Assignee
三菱マテリアル株式会社
アイシン・エィ・ダブリュ株式会社
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, アイシン・エィ・ダブリュ株式会社 filed Critical 三菱マテリアル株式会社
Priority to JP3611883U priority Critical patent/JPS59143618U/en
Publication of JPS59143618U publication Critical patent/JPS59143618U/en
Application granted granted Critical
Publication of JPS6312892Y2 publication Critical patent/JPS6312892Y2/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]

第１図ないし第３図は従来の２枚刃ガンドリルの一例を
示し、第１図はその一部を断面にして示す側面図、第２
図は第１図の■矢視拡大図、第３図は第２図の■矢視図
、第４図ないし第６図はこの考案の一実施例を示し、第
４図はその一部を断面にして示す側面図、第５図は第４
図の■矢視拡大図、第６図は第５図の■矢視図である。 １１・・・・・・ガンドリル本体、１２・・・・・・ム
クチップ（切刃チップ）、１３・・・・・・切刃、１３
ａ・・・・・・内切、１３ｂ・・・・・・外刃、Ｏ・・
・・・・回転中心。Figures 1 to 3 show an example of a conventional two-flute gun drill.
The figure is an enlarged view in the direction of the ■ arrow in Figure 1, Figure 3 is an enlarged view in the direction of the ■ arrow in Figure 2, Figures 4 to 6 show one embodiment of this invention, and Figure 4 shows a part of it. A side view shown in cross section, Figure 5 is the 4th
6 is an enlarged view of FIG. 5 in the direction of the ■ arrow. 11... Gun drill body, 12... Muku tip (cutting tip), 13... Cutting blade, 13
a...Inner cutter, 13b...Outer cutter, O...
····Rotation center.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ガンドリル本体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２つの切刃を形成してな
る２枚刃ガンドリルにおいて、前記各切刃はそれぞれ、
回転中心近傍を切削する内刃と、外周部を切削する外刃
とを有しており、前記内刃を芯上りに配置するとともに
、前記外刃を芯下がりにまたは回転中心を通る直線上に
配置したことを特徴とする２枚刃ガンドリル。A two-blade gun drill in which a cutting tip made of cemented carbide is provided at the tip of the gun drill body, and two cutting edges are formed at the tip of the cutting tip, each of the cutting edges being:
It has an inner cutter that cuts near the center of rotation and an outer cutter that cuts the outer peripheral part, and the inner cutter is arranged above the center, and the outer cutter is arranged below the center or on a straight line passing through the center of rotation. A two-blade gun drill that is characterized by its arrangement.
JP3611883U 1983-03-12 1983-03-12 2-blade gun drill Granted JPS59143618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3611883U JPS59143618U (en) 1983-03-12 1983-03-12 2-blade gun drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3611883U JPS59143618U (en) 1983-03-12 1983-03-12 2-blade gun drill

Publications (2)

Publication Number Publication Date
JPS59143618U true JPS59143618U (en) 1984-09-26
JPS6312892Y2 JPS6312892Y2 (en) 1988-04-13

Family

ID=30166799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3611883U Granted JPS59143618U (en) 1983-03-12 1983-03-12 2-blade gun drill

Country Status (1)

Country Link
JP (1) JPS59143618U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63102814A (en) * 1986-10-21 1988-05-07 Mitsubishi Metal Corp Two blade gun drill

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836018U (en) * 1981-09-04 1983-03-09 株式会社日本治金 Drill for deep hole cutting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836018B2 (en) * 1981-04-06 1983-08-06 日立化成工業株式会社 Manufacturing method of heat-resistant resin

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836018U (en) * 1981-09-04 1983-03-09 株式会社日本治金 Drill for deep hole cutting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63102814A (en) * 1986-10-21 1988-05-07 Mitsubishi Metal Corp Two blade gun drill

Also Published As

Publication number Publication date
JPS6312892Y2 (en) 1988-04-13

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