Forming profiled elements

摘要

A process and apparatus for forming profiled elements, particularly semi-conductor heat-sinks, from extruded members formed of metal or other suitable thermally conductive materials. The extruded member comprises a base member 12 and a plurality of transversely spaced longitudinally extending ribs 14. The process involves using a transversely acting punching means to remove spaced apart longitudinally extending portions 18 from the ribs to provide a profiled element (heat-sink) having a base member and transversely spaced rows of rib portions (fins). Adjacent ribs of respective rows may be in transverse alignment.