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:
Nov. 04, 2014
Filed:
Aug. 09, 2012
Ki-chan Nam, Chungcheongbuk-do, KR;
Sang-yong Lee, Chungcheongbuk-do, KR;
Wook-jung Sung, Chungcheongbuk-do, KR;
Dong-bok Park, Chungcheongbuk-do, KR;
Jong-chan Lee, Gyeongsangbuk-do, KR;
Ki-Chan Nam, Chungcheongbuk-do, KR;
Sang-Yong Lee, Chungcheongbuk-do, KR;
Wook-Jung Sung, Chungcheongbuk-do, KR;
Dong-Bok Park, Chungcheongbuk-do, KR;
Jong-Chan Lee, Gyeongsangbuk-do, KR;
Korloy Inc., Seoul, KR;
Abstract
A cutting insert, and more particularly, an improved double-sided cutting insert is provided, which provides improved machinability obtained due to increased rake angle, without compromising coupling state. The double-sided cutting insert includes a top surface, a bottom surface, a plurality of lateral relief surfaces connecting the top and bottom surfaces, and a cutting edge formed by the top and bottom surfaces and the plurality of lateral relief surfaces, in which one or more lateral relief surfaces of the plurality of lateral relief surfaces are formed into three stages in sequence which are a first positive surface, a negative surface and a second positive surface in a direction from the top surface to the bottom surface.