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:
Apr. 06, 2010
Filed:
Apr. 25, 2005
Geun Woo Park, Cheongju, KR;
Chang Kyu Hwang, Cheongju, KR;
Yeo Kyun Yoon, Daejeon, KR;
Yong Hee Choi, Cheongju, KR;
Hyung Keun Joo, Cheongju, KR;
Wook Jung Sung, Cheongju, KR;
Geun Woo Park, Cheongju, KR;
Chang Kyu Hwang, Cheongju, KR;
Yeo Kyun Yoon, Daejeon, KR;
Yong Hee Choi, Cheongju, KR;
Hyung Keun Joo, Cheongju, KR;
Wook Jung Sung, Cheongju, KR;
Korloy Inc., Cheongju, KR;
Abstract
Disclosed herein is a cutting tool having high toughness and abrasion resistance, in which a coated cutting tool including a cemented carbide substrate, a cermet substrate or a ceramic substrate coated with a hard coating film by means of chemical vapor deposition, moderate temperature-chemical vapor deposition or physical vapor deposition, and/or a cemented carbide cutting tool, a cermet cutting tool or a ceramic cutting tool are subjected to wet blasting using 10-300 μm sized particles to decrease residual tensile stress or increase residual compressive stress, thereby improving toughness, and also, reducing surface roughness of the cutting tool, thus remarkably increasing chipping resistance and flaking resistance.