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.

Date of Patent:
Apr. 11, 2017

Filed:

Jan. 16, 2014
Applicant:

Sumitomo Electric Hardmetal Corp., Itami-shi, Hyogo, JP;

Inventors:

Kouki Matsubara, Itami, JP;

Atsuhiko Maeta, Itami, JP;

Katsuya Nakakihara, Itami, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23C 5/20 (2006.01); B23C 5/06 (2006.01); B23C 5/22 (2006.01);
U.S. Cl.
CPC ...
B23C 5/205 (2013.01); B23C 5/06 (2013.01); B23C 5/207 (2013.01); B23C 5/2217 (2013.01); B23C 5/2221 (2013.01); B23C 5/20 (2013.01); B23C 5/22 (2013.01); B23C 2200/28 (2013.01); B23C 2200/361 (2013.01); Y10T 407/192 (2015.01); Y10T 407/235 (2015.01);
Abstract

An object is to provide a cutting insert for a milling cutter with which efficiency in machining can be increased. The cutting insert includes two polygonal main surfaces facing each other and side surfaces each connected to a corresponding side of each of the main surfaces. The side surfaces include a major side surface through which an attachment hole extends, a first minor side surface perpendicular to the major side surface, and a second minor side surface disposed between the first minor side surface and the major side surface. A ridge between each of the main surfaces and the major side surface forms a major cutting edge, and a ridge between each of the main surfaces and the second minor side surface forms a minor cutting edge. An angle between the major cutting edge and the minor cutting edge is 145° or larger.


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