Methode zur Herstellung eines Halte- und Dichtelements mittels eines Stanzwerkzeugs

摘要

A punching die (11) for punching a sheet of inorganic fiber mat (16) to manufacture a holding seal member (15) for winding around an exhaust gas purifier body (21). The punching die includes a base plate (12). A donble-edged punching blade (13), supported by the base plate, punches the inorganic fiber mat to cut out the holding seal member.