EP 0268735 B1 19910821 - METHOD FOR THE FOLDED OR FLANGED CONNECTION OF PART OF A TUBE TO A CONNECTING PIECE
Title (en)
METHOD FOR THE FOLDED OR FLANGED CONNECTION OF PART OF A TUBE TO A CONNECTING PIECE
Publication
Application
Priority
DE 3637137 A 19861031
Abstract (en)
[origin: EP0268735A1] The invention relates to a method for the folded or flanged connection of a pipe part to a connecting part or the like, having a foot region interacting with the pipe part. Folds interacting with the foot region are formed in the pipe part as a result of axial stress and radial guidance, and furthermore internal stresses are generated in the pipe part in a relatively large region overlapping the fold region, and in the particular regions in which the folds are to be formed the inherent stresses are at least reduced. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 39/06 (2006.01); B21D 53/88 (2006.01); C21D 9/08 (2006.01)
CPC (source: EP)
B21D 39/06 (2013.01); C21D 9/08 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0268735 A1 19880601; EP 0268735 B1 19910821; DE 3637137 A1 19880505; DE 3772334 D1 19910926
DOCDB simple family (application)
EP 87109167 A 19870626; DE 3637137 A 19861031; DE 3772334 T 19870626