METHOD FOR PARTING METAL PLATE, DIE, PRINTED BOARD AND ELECTRONIC EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To obtain a method of parting a metal plate in which main body parts are separated from a wasted member without generating refuse. SOLUTION: In a metal plate parting method for parting the main body parts 31 from hanging members 37: a planar base material 34 which has flexibility and is provided with hanging members 37 which are interposed between the main body parts 31 and the wasted members 36 is prepared; and, by mounting the planar base material 34 to a die 45 having an opening part 51 and driving a punch 47 to the hanging member 37, the main body parts 31 are parted from the the hanging members 37. The punch 47 has a first end part 47a corresponding to one end 37a which is connected to the main body part of the hanging member; a second end part 47b corresponding to the other end 37b which is connected to the wasted member of the hanging member and also a clearance S1smaller than the thickness t of the planer base material 34 is formed between the first end part 47a and the inner peripheral surface 51a of the opening part; and a clearance S2larger than the thickness of the planar base material 34 is formed between the second end part 47b and the inner peripheral surface 51b of the opening part. COPYRIGHT: (C)2007,JPO&INPIT