LAMINATED AND BONDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a laminated and bonded part having large bonding force between adjacent sheet pieces with each other as compared to a conventional laminated and bonded part and having stable quality. SOLUTION: In a laminated and bonded part in which a large number of metallic sheet pieces having a protrusion part are laminated and adjacent sheet pieces 23 are bonded, the protrusion part 24 formed on the sheet piece 23 is constituted so that a recessed part 24a is arranged on one face and a projecting part 24b on the other face and tapered parts 24c are arranged at the tip of the projecting part 24b and the inlet of the recessed part 24a.