JPS62161902U

JPS62161902U -

Info

Publication number: JPS62161902U
Application number: JP5041886U
Authority: JP
Priority date: 1986-04-04
Filing date: 1986-04-04
Publication date: 1987-10-15

Description

[Brief explanation of drawings]

第１図はこの考案のチツプの一実施例を示す斜
視図、第２図はこの種のチツプが装着される突切
りバイトを示す概略側面図、第３図は第２図の
―線視図、第４図ａは従来のチツプの一例を示
す斜視図、同図ｂは上記チツプによる切屑の形状
を示す斜視図、第５図ａは従来のチツプの他の例
を示す斜視図、同図ｂは上記チツプによる切屑の
形状を示す斜視図である。３０……チツプ（スローアウエイチツプ）、３
１……すくい面、３２……切刃、３３……ネガテ
イブランド、３４……デインプルブレーカ（凹部
）、３５…逃げ面、３６，３７，３８，３９……
丸ホーニング部。 Fig. 1 is a perspective view showing an embodiment of the chip of this invention, Fig. 2 is a schematic side view showing a parting tool to which this type of chip is installed, and Fig. 3 is a perspective view taken along the line shown in Fig. 2. , FIG. 4a is a perspective view showing an example of a conventional chip, FIG. 4b is a perspective view showing the shape of chips produced by the chip, and FIG. b is a perspective view showing the shape of chips produced by the above-mentioned chips; 30... Chip (throwaway chip), 3
1... Rake face, 32... Cutting edge, 33... Negative brand, 34... Dimple breaker (recess), 35... Flank surface, 36, 37, 38, 39...
Round honing department.

Claims

[Scope of utility model registration request]

In a throw-away tip for a cutting tool that cuts the outer peripheral surface of a rotating workpiece with a cutting edge formed on a ridgeline between the flank face and the rake face, the rake is provided between the rake face and the cutting edge. forming a negative land in the form of an inclined surface that intersects the surface at an obtuse angle, and forming a recess reaching the negative land in the center of the rake face, and the cutting edge between the negative land and the flank surface; and a throw-away chip, characterized in that round honing portions of R0.03 to R0.05 are formed on the ridgeline portions between the negative brand and the rake face, respectively.