ULTRASONIC METAL BONDING MACHINE, METAL SHEET BONDING METHOD USING THE SAME, AND BONDED METAL SHEET OBTAINED BY USING THE ULTRASONIC METAL BONDING MACHINE OR THE METAL SHEET BONDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an ultrasonic metal bonding machine providing a bonded metal sheet having uniform bonding strength without decreasing the strength while suppressing considerable increase in the bonding cost; to provide a metal sheet bonding method using the same; and to provide a bonded metal sheet obtained by using the ultrasonic metal bonding machine or the metal sheet bonding method.;SOLUTION: In the ultrasonic metal bonding machine 1, a top face 2a of an anvil 2 is constituted of a large number of projecting parts 2b. The height of these projecting parts 2b is set to be a fixed value so that the top face 2a of the anvil 2 is flat. A distal end portion 31 of a horn 3 has four pressing sections 32, and a distal end face 3a of each pressing section 32 is constituted of a large number of projecting parts 3b. In these projecting parts 3b, the projecting parts 3b on the outer side are projected more than the projecting parts 3b on the center side so that the cross section of the distal end portion face 3a has a curved shape so that the inner side is recessed.;COPYRIGHT: (C)2010,JPO&INPIT