JPH01155111U

JPH01155111U -

Info

Publication number: JPH01155111U
Application number: JP4731588U
Authority: JP
Priority date: 1988-04-08
Filing date: 1988-04-08
Publication date: 1989-10-25
Anticipated expiration: 2003-04-08
Also published as: JPH0735685Y2

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の一実施例を示す
もので、第１図はチツプの側断面図、第２図はそ
の平面図、第３図は第２図の方向矢視図、第４
図および第５図はそれぞれ本考案の他の実施例を
示すもので、チツプを示す平面図、第６図および
第７図は本考案のさらに他の実施例を示し、第６
図はチツプを示す平面図、第７図は第６図の方
向矢視図、第８図ないし第１０図はチツプのアキ
シヤルレーキ角とラジアルレーキ角とを説明する
ためのもので、第８図イはマイナスに設定したア
キシヤルレーキ角、同図ロはマイナスに設定した
ラジアルレーキ角をそれぞれ示す図、第９図イは
プラスに設定したアキシヤルレーキ角、同図ロは
プラスに設定したラジアルレーキ角、第１０図イ
はプラスに設定したアキシヤルレーキ角、同図ロ
はマイナスに設定したラジアルレーキ角を示す図
、第１１図は、第５図に示すチツプで切削加工を
行つている状態を示す側断面図、第１２図は従来
のチツプを示す平面図、第１３図は第１２図の
方向矢視図、第１４図は従来のチツプの他の例
を示す平面図、第１５図は第１４図の方向矢
視図、第１６図は従来のチツプの側断面図、第１
７図および第１８図はそれぞれ従来のチツプで切
削加工を行つている状態を示す側断面図である。１……上面、２……側面、３……切刃、１０…
…上面、１２……側面、１３……切刃、１４……
第１ホーニング部、１５……第２ホーニング部、
２０……上面、２２……切刃、２３……第１ホー
ニング部、３０……上面、３２……切刃、３３…
…第１ホーニング部、４１……上面、４２……切
刃、４３……第１ホーニング部。 1 to 3 show an embodiment of the present invention, in which FIG. 1 is a side sectional view of the chip, FIG. 2 is a plan view thereof, and FIG. 3 is a view taken in the direction of the arrow in FIG. Fourth
5 and 5 respectively show other embodiments of the present invention, and FIGS. 6 and 7 show still other embodiments of the present invention.
7 is a plan view showing the chip, FIG. 7 is a view taken in the direction of FIG. 6, and FIGS. 8 to 10 are for explaining the axial rake angle and radial rake angle of the chip. Figure 9 shows the axial rake angle set to a negative value, B shows the radial rake angle set to a negative value, Figure 9 A shows the axial rake angle set to a positive value, B shows the radial rake angle set to a positive value, and Figure 10 shows the radial rake angle set to a positive value. Figure A shows the axial rake angle set to positive, Figure B shows the radial rake angle set to negative, and Figure 11 is a side sectional view showing the state in which cutting is performed with the chip shown in Figure 5. FIG. 12 is a plan view showing a conventional chip, FIG. 13 is a view taken in the direction of FIG. 12, FIG. 14 is a plan view showing another example of the conventional chip, and FIG. Fig. 16 is a side sectional view of a conventional chip;
FIG. 7 and FIG. 18 are side sectional views respectively showing a state in which cutting is performed using a conventional chip. 1...Top surface, 2...Side surface, 3...Cutting blade, 10...
...Top surface, 12...Side surface, 13...Cutting edge, 14...
1st honing part, 15... 2nd honing part,
20... Upper surface, 22... Cutting blade, 23... First honing portion, 30... Upper surface, 32... Cutting edge, 33...
...first honing part, 41...upper surface, 42...cutting edge, 43...first honing part.

Claims

[Scope of utility model registration request]

In a throwaway chip in which a cutting edge is formed on the ridgeline of the upper surface, which is the rake surface, the relief angle of the chip formed by the plane perpendicular to the upper surface and the side surface is 2.
0 to 45 degrees, and a first honing part is formed on the edge along the cutting edge of the upper surface, which slopes downward toward the outside with respect to the upper surface, and between this first honing part and the cutting edge. A second honing portion is formed which slopes downward toward the outside at an angle larger than the angle that the first honing portion makes with the upper surface and whose width in plan view is narrower than the width of the first honing portion, and further, a second honing portion is formed. 1 The width of the honing part is 0.2mm.
As mentioned above, the width of the second honing part is 0.2 mm or less, and the angle between the first honing part and the top surface is 5 mm.
A throw-away chip characterized in that the wedge angle of the chip formed by the first honing part and the side surface is 70 to 80 degrees.