EXPANSION METALARBETSSTYCKE OCH FOERFARANDE FOER DESS FRAMSTAELLNING

摘要

An expanded metal workpiece is formed from an extrusion so as to have grooves between the beads where adjacent beads are joined by web portions, the head portions of metal inserts are then inserted into the grooves at a metal to metal joining zone, and each head is retained to the metal workpiece by metal deformation.