die stroke
2.RESEARCH OF 3-STROKE HIGH-SPEED AUTOMATIC COLD HEADING MACHINE WITH CONCAVE DIE IN ROTATION
3.A model of equal channel angular pressing (ECAP) is built up by SOLIDWORKS, the extrusion processes are simulated at various punch speeds and with different friction factor between workpiece and die using finite element method analysis software DEFORM-3D. The strain field, load-stroke curve,and stress distribution on the die are obtained.

