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1. (WO2018083878) METHOD FOR FORMING FINE PERIODIC STRUCTURAL GROOVES ON DIAMOND SURFACE

Pub. No.:    WO/2018/083878    International Application No.:    PCT/JP2017/031658
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Sep 02 01:59:59 CEST 2017
IPC: B23K 26/364
B21D 37/01
B21D 37/20
B23K 26/00
B21D 22/28
B21D 51/26
Applicants: TOYO SEIKAN GROUP HOLDINGS, LTD.
東洋製罐グループホールディングス株式会社
Inventors: SHIROISHI, Ryozo
城石 亮蔵
TAKAO, Kenichi
高尾 健一
YUASA, Yoshiyuki
湯淺 義之
Title: METHOD FOR FORMING FINE PERIODIC STRUCTURAL GROOVES ON DIAMOND SURFACE
Abstract:
This method for forming fine periodic structural grooves on a diamond surface is characterized in that fine periodic structural grooves 3 are formed on a diamond surface 1 by radiating laser light having a pulse width at least equal to 1 ns, generated with a periodic intensity distribution, onto at least a portion of the diamond surface 1 having an average surface roughness Ra at most equal to 0.1 μm.