JPS5912519U

JPS5912519U - Throw-away cutter

Info

Publication number: JPS5912519U
Application number: JP10665082U
Authority: JP
Inventors: 越智　隆之; 成徳恵本
Original assignee: 住友電気工業株式会社
Priority date: 1982-07-13
Filing date: 1982-07-13
Publication date: 1984-01-26
Also published as: JPS624418Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は切削形状を示す断面図、第２図は従来のカッタ
ーによる切削形状を示す断面図、第３図はこの考案の実
施例のカッターを示す一部省略正面図、第４図及び第５
図は同上のチップの配置を示す説明図、第６図は切削形
状の一部を示す断面−図、第７図は他の実施例のチップ
の配置を示す説明図である。。１０・・・カッターボディ、ｉｌ、１１・・・第１チツ
プ、１２．１２・・・第２チツプ、１３．１３・・・第
３チツフ、１７・・・鋭角コーナ、１８・・・鈍角コー
ナ、１９・・・コーナ、Ｒ１・・・第１のアール、Ｒ２
・・・第２のアール。Fig. 1 is a sectional view showing the cutting shape, Fig. 2 is a sectional view showing the cutting shape by a conventional cutter, Fig. 3 is a partially omitted front view showing the cutter of the embodiment of this invention, Figs. 5
FIG. 6 is a cross-sectional view showing a part of the cut shape, and FIG. 7 is an explanatory view showing the arrangement of tips in another embodiment. . 10... Cutter body, il, 11... First tip, 12.12... Second tip, 13.13... Third tip, 17... Acute angle corner, 18... Obtuse angle corner , 19... corner, R1... first radius, R2
...Second R.

Claims

[Scope of utility model registration request]

(1) The shape of the groove to be cut is
It has a rounded radius, and also has a stepped part in the direction of widening the groove width in the middle of both side walls continuous to the corner, and a second rounded corner that continues from the stepped part to both side walls. In the throw-away type cutter equipped with a tip for cutting the first radius and a tip for cutting the second radius, the tip for cutting the first radius is controlled by a pair of first and second tips on the left and right. In addition, the tip for cutting the second radius is constituted by a pair of left and right third tips, and the first and second tips use parallelogram tips of the same size, and the acute corner thereof is connected to the first radius. The first chip has an acute angle coach, and the second chip has an obtuse corner. 1. A throw-away cutter, characterized in that the third tip is arranged in a cutting position, and the third tip is constituted by a square tip having a corner for cutting a second radius.

(2) The throw-away cutter according to claim 1, wherein the third tip is smaller in size than the first and second tips.

(3) The indexable cutter according to claim 1 or 2, wherein all corners of the third tip are completely rounded.

(4) All corners of the third chip above are defined as 1 part of the circumference between the apex and the inner straight part with the radius of the second radius.
Throwaway type cutter-0 according to claim 1 or 2 of the utility model registration claim, characterized in that the cutter is formed into an arc shorter than 78.