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:
Dec. 06, 2016

Filed:

Jun. 20, 2013
Applicant:

Tungaloy Corporation, Iwaki-shi, Fukushima, JP;

Inventor:
Assignee:

Tungaloy Corporation, Iwaki-shi, Fukushima, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23C 5/20 (2006.01); B23C 5/10 (2006.01); B23C 5/22 (2006.01);
U.S. Cl.
CPC ...
B23C 5/1045 (2013.01); B23C 5/2213 (2013.01); B23B 2200/3636 (2013.01); B23C 2200/125 (2013.01); B23C 2200/128 (2013.01); B23C 2200/165 (2013.01); B23C 2200/203 (2013.01); B23C 2210/168 (2013.01); Y10T 407/1924 (2015.01); Y10T 407/23 (2015.01);
Abstract

Intersecting ridge lines of the top surface () and side surfaces () of a cutting insert () have opposing first and second arcuate cutting edges (). One intersecting ridge line of the bottom surface () and side surface () has a third arcuate cutting edge (). The first and third cutting edges are on one side and the second cutting edge is on the other side with respect to the middle line. The length between the first and second cutting edges is greater than the length between the third cutting edge and the other intersecting ridge line (). In a cross section perpendicular to the middle line, the angle formed by the top surface and a line connecting the first and third cutting edges is different from the angle formed by the top surface and a line connecting the second cutting edge and the ridge line ().


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