公开(公告)号：US3771342A

公开(公告)日：1973-11-13

申请号：US77134271

申请日：1971-10-15

Applicant: TECHNIGAZ

Inventor： ALLEAUME J ,  FOURNIER G

IPC: B21D5/00 ,  B21D11/20 ,  B21D13/02 ,  F17C3/02

CPC classification number: B21D11/08 ,  B21D5/00 ,  B21D11/20 ,  B21D11/206 ,  B21D13/02 ,  F17C3/027

Abstract: A method of making a dihedron-like corrugated corner element from a metal sheet, comprising folding said sheet into a dihedron and forming therein a corrugation extending throughout transversely of the edge of the dihedron by driving in a portion of said sheet while simultaneously drawing near to each other the non-deformed sheet portions located on each side of the crest folding line of the corrugations.

Abstract translation: 一种从金属片制造二面体状的波纹角元件的方法，包括将所述片材折叠成二面体并在其中形成波纹，所述波纹横跨所述二面体的边缘延伸，通过在所述片材的一部分中驱动而同时拉近 彼此形成位于波纹的顶部折叠线的每一侧上的非变形片部分。