METHOD OF PRODUCING COPPER STRIP MATERIAL HAVING DEFORMED CROSS SECTION

摘要

PROBLEM TO BE SOLVED: To provide a method of producing a copper strip material having a deformed cross section, by which a slitting process is omitted.;SOLUTION: The method of producing the copper strip material having the deformed cross section comprises: a strip material supplying process where a flat-plate-like copper strip material 6 is supplied to a flat-board-like V-shaped die 1; a pressure press working process where the flat-plate-like copper strip material 6 is pressurized against a base face on which a V-shaped projection part is provided; a rolling process where the copper strip material 7 having the deformed cross section having a thick plate part 7a formed in a portion of the flat-plate-like copper strip material 6 which is passed through a grooved part 16 and a thin plate part 7b formed in a portion passing through the V-shaped projection part is formed by pulling out the pressurized flat-plate-like copper strip material 6 from one end toward the other end; and an overall width control process where the overall width of the deformed copper strip material 7 is measured and variation in the overall width of the produced copper strip material 7 having the deformed cross section is controlled within a predetermined range on the basis of the measurement result.;COPYRIGHT: (C)2011,JPO&INPIT