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:
Oct. 24, 2017
Filed:
Dec. 26, 2013
Applicant:
Tungaloy Corporation, Yoshima-Kogyodanchi, Iwaki-shi, Fukushima, JP;
Inventors:
Assignee:
Tungaloy Corporation, Iwaki-shi, Fukushima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C 5/08 (2006.01); B23F 21/14 (2006.01); B23C 5/20 (2006.01);
U.S. Cl.
CPC ...
B23F 21/146 (2013.01); B23C 5/08 (2013.01); B23C 5/207 (2013.01); B23C 2200/0438 (2013.01); B23C 2200/128 (2013.01); B23C 2200/203 (2013.01); B23C 2200/367 (2013.01); B23C 2210/168 (2013.01); Y10T 407/1942 (2015.01); Y10T 407/235 (2015.01); Y10T 407/24 (2015.01); Y10T 407/245 (2015.01);
Abstract
A cutting insert includes a cutting edge having an involute-curve approximate shape. A cutting edge is formed so as to wholly take on a first curved shape with a first curvature radius when the cutting insert is viewed from the end surface, and is formed so that a large part of the cutting edge takes on a second curved shape with a second curvature radius when the cutting insert is viewed from the side surface.