The paper introduces a calculating method of offset in the reference and unreference of blanking die in WEDM. And based on it, reach an approach to fast program for unreference die.

The device consists of a precision, low-offset linear Hall sensor circuit with a copper conduction path located near the surface of the die.

Main process : corrosion, stamping, imitation enamel, printing, epoxy resin, die casting, offset printing, coloring, soft PVC.