- Patent Title: Method for forming coating film having high heat resistance, high hardness and abrasion resistance, coating film having high heat resistance, high hardness and abrasion resistance, and cutting tool comprising same
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Application No.: US16081660Application Date: 2017-03-02
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Publication No.: US10597781B2Publication Date: 2020-03-24
- Inventor: Hee Soo Lee , Seol Jeon , Ji Seung Ryu , Bu Young Kim , Seung Hyeon Jo , Eun Pyo Hong , Yang Do Kim , Hyun Jo Yoo
- Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERRATION FOUNDATION
- Applicant Address: KR Busan
- Assignee: Pusan National University Industry-University Cooperation Foundation
- Current Assignee: Pusan National University Industry-University Cooperation Foundation
- Current Assignee Address: KR Busan
- Agency: Norton Rose Fulbright US LLP
- Priority: KR10-2016-0024989 20160302; KR10-2016-0099072 20160803
- International Application: PCT/KR2017/002254 WO 20170302
- International Announcement: WO2017/150908 WO 20170908
- Main IPC: C21D1/09
- IPC: C21D1/09 ; C23C14/06 ; C23C16/32 ; C23C16/36 ; C23C16/515 ; C23C28/00 ; C23C8/64 ; B32B27/14 ; C23C8/66 ; C23C14/35 ; C23C14/58 ; C23C28/04 ; B26D1/00 ; C23C16/34 ; C23C30/00 ; B62D1/00

Abstract:
The present disclosure relates to a method for producing a coating film having high heat resistance, high hardness and wear resistance, a coating film having high heat-resistance, high hardness and wear resistance produced using the method, and a cutting tool including the same. The method includes forming a metal nitride layer on a metal base; forming a carbon layer on the metal nitride layer; and irradiating a laser into the carbon layer to add carbons into a portion of the metal nitride layer, thereby to form a carburized layer.
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