METHOD FOR BORING METALLIC SURFACE HAVING METALLIC SHEEN, CAN ROLL HAVING FINE PORE DISPOSED BY THIS METHOD IN OUTER PERIPHERAL SURFACE AND MANUFACTURING METHOD THEREOF, ROLL TO ROLL SURFACE PROCESSING DEVICE COMPRISING CAN ROLL

摘要

PROBLEM TO BE SOLVED: To provide a method for boring a metal surface having metallic sheen by plating by using laser processing.;SOLUTION: A method comprises the steps of: roughening a metal surface having a surface, which was made, for example, a mirror surface as metallic sheen by hard chromic plating, for example, by subjecting blast treatment by using a polishing agent of a median particle diameter of 10 to 100 μm, preferably center line average roughness (Ra) of 0.1 to 0.3 μm; boring the roughened metal surface by laser processing; and mirror finishing the bored metal surface by polishing, preferably the center line average roughness (Ra) of 0.05 μm or less.;COPYRIGHT: (C)2014,JPO&INPIT