T-section made from one-piece sheet metal blank has webs formed from two abutting sheet metal layers interconnected by clinching at several connecting points distributed over profile's length

摘要

A T-section is made from a one-piece sheet metal blank with an upper lying hollow thickening which changes into two profiled webs (4) formed from two abutting sheet metal layers which are interconnected by clinching at several connecting points (7) distributed over the profile's length. The connecting points formed by clinching may be in one, two or three rows, and may be offset in relation to each other in the rows.