JPS628006U

JPS628006U -

Info

Publication number: JPS628006U
Application number: JP10161585U
Authority: JP
Priority date: 1985-07-01
Filing date: 1985-07-01
Publication date: 1987-01-19

Description

[Brief explanation of the drawing]

第１図はこの考案のスローアウエイチツプの一
実施例を示す平面図、第２図はそのチツプのコー
ナー部分を示す部分平面図、第３図は同上のＸ―
Ｘ線に沿つた断面図、第４図は同上のＹ―Ｙ線に
沿つた断面図、第５図は他の実施例を示す部分平
面図、第６図は同上のＸ′―Ｘ′線に沿つた断面
図、第７図は同じくＹ′―Ｙ′線に沿つた断面図
、第８図はねじ切り加工における切込み方法を模
式的に示した図、第９図は従来例を示す斜視図、
第１０図は他の従来例を示す平面図、第１１図は
同上の側面図である。１，１０……スローアウエイチツプ、２，１２
……すくい面、３，１３……突起、３ａ，３ｂ…
…突起側面、４ａ，４ｂ，１４ａ，１４ｂ……切
刃。 Fig. 1 is a plan view showing an embodiment of the throw-away chip of this invention, Fig. 2 is a partial plan view showing the corner portion of the chip, and Fig. 3 is the same X-
4 is a cross-sectional view taken along the Y-Y line of the same, FIG. 5 is a partial plan view showing another embodiment, and FIG. 6 is a cross-sectional view taken along the X'-X' line of the same. 7 is a sectional view taken along the Y'-Y' line, FIG. 8 is a diagram schematically showing the cutting method in thread cutting, and FIG. 9 is a perspective view showing a conventional example. ,
FIG. 10 is a plan view showing another conventional example, and FIG. 11 is a side view of the same. 1, 10... Throwaway tip, 2, 12
...Rake face, 3, 13...Protrusion, 3a, 3b...
...Protrusion side surface, 4a, 4b, 14a, 14b...cutting blade.

Claims

[Scope of utility model registration request]

2 obliquely intersecting at the corner corresponding to the thread shape
In a throw-away tip for thread cutting equipped with a cutting edge, a protrusion is provided on the rake face near the cutting edge, a part of the bottom of which is substantially along the cutting edge, and the surface of the protrusion that runs along the cutting edge is the cutting edge. A throw-away tip for thread cutting characterized by having a surface that rises diagonally upward in the direction of retreating from the tip.