Förfarande,tillverkningsprocess och tillverkningslinje för tillverkning av härdbara metalldetaljer med öppet tvärsnitt

摘要

In a method of manufacturing articles ( 8 ) in hardenable metal materials, a shaped workpiece ( 5.1, 5.2 ) with closed cross-section is hardened. The hardened workpiece ( 5.1, 5.2 ) is separated into at least two parts, where each part constitutes one shaped open cross-section. The invention also concerns a manufacturing process and a production line for the manufacture of articles ( 8 ) in hardenable metal materials.