The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2016
Filed:
Sep. 10, 2013
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Atsuhiko Maeta, Itami, JP;
Kouki Matsubara, Itami, JP;
Katsuya Nakakihara, Itami, JP;
Yoshinari Nagami, Itami, JP;
SUMITOMO ELECTRIC HARDMETAL CORP., Hyogo, JP;
Abstract
An object is to provide a cutting insert for milling that has a minor cutting edge for wiping to achieve improved machined surface quality. A minor cutting edgeat a corner includes two circular cutting edge portionsandjoined to major cutting edgeson both sides of the corner and a straight cutting edge portionlocated between the two circular cutting edge portions. The cutting insert satisfies the following conditions: 0.05TA≦L≦0.4TA, 0.1L≦L≦0.5L, and h≦15 μm, where TA is the radius of a circle inscribed inside the major cutting edgesas viewed in the thickness direction of the cutting insert, Lis the length of the minor cutting edgein the longitudinal direction of the straight cutting edge portion, L is the length of the straight cutting edge portion, and h is the height of the minor cutting edge