Patent · US Active

Ball end mill

US10449611B2 · kind B2 · utility

0Cited by

0References

4Claims

0Family size

Assignee

MITSUBISHI MATERIALS CORPORATION · JP

Inventors

Takayuki Azegami · Akashi, JP
Taro Abe · Bando, JP
Masanori Kawasaki · Kariya, JP

Key dates

Filing date	Oct 23, 2014
Grant date	Oct 22, 2019
Priority date	—
Expiry date	May 21, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23C2210/54
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

In the ball end mill, at least two end cutting edges are extended to the vicinity of an axis at a tip portion of an end mill main body which rotates around the axis. In two gashes in which two end cutting edges adjacent to each other in a circumferential direction are formed, a first gash on the end mill rotation direction side extends beyond the axis on the tip of the end mill main body and a second gash on the rear side in the end mill rotation direction does not exceed the axis. A first tip flank face which intersects with the first gash through a first end cutting edge is extended toward a second tip flank face which intersects with the second gash through a second end cutting edge.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.