JPS5889224U

JPS5889224U - pole end mill

Info

Publication number: JPS5889224U
Application number: JP18196181U
Authority: JP
Inventors: 西森　光雄; 裕林
Original assignee: トヨタ自動車株式会社
Priority date: 1981-12-07
Filing date: 1981-12-07
Publication date: 1983-06-16

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

[Brief explanation of drawings]

第１図は従来のボールエンドミルの外形を示す正面図、
第２図は第１図の側面図、第３図は従来の異なる例を示
す正面図、第４図は第３図の側面図、第５図〜第７図は
本考案の一実施例を示すもので、第５図は正面図、第６
図は第５図の側面図、第７図は第５図の■−■線断面図
である。４・・・ミル本体、５・・・内周切刃、６・・・超硬チ
ップ、６Ａ・・・外周切刃、６Ｂ・・・ロー付は部分。Figure 1 is a front view showing the outline of a conventional ball end mill.
Fig. 2 is a side view of Fig. 1, Fig. 3 is a front view showing a different conventional example, Fig. 4 is a side view of Fig. 3, and Figs. 5 to 7 show an embodiment of the present invention. Fig. 5 is a front view, Fig. 6 is a front view, and Fig. 6 is a front view.
The figure is a side view of FIG. 5, and FIG. 7 is a sectional view taken along the line ■--■ of FIG. 4... Mill body, 5... Inner cutting edge, 6... Carbide tip, 6A... Outer cutting edge, 6B... Brazing is a part.

Claims

[Scope of utility model registration request]

(1) A mill body made of high-speed steel and having an inner cutting edge formed at the tip is provided, and a straight-edged carbide chip is made to protrude from the outer periphery of the mill body as an outer cutting edge. A ball end mill characterized in that the tip of the inner cutting edge is fixed to the outer circumferential side of the cutting edge so as to be exposed flush with the outer circumferential side.

(2) A plurality of carbide tips are brazed to the mill body at intervals in the circumferential direction, and each carbide tip is brazed on the inner circumferential side of the mill body so that the position is from the axis of the mill body. The ball end mill according to claim 1, characterized in that the distances are different from each other.