Abstract
A process known as die-lesss wire drawing has been developed introducing new concepts in metal forming and polymer coating of wires. The successful operation of the process depends on the geometry of the pressure chamber and the type of fluid used. The present experimental investigation compares the deformation of copper wire using various grades of polyborosiloxane with polymer melts including two grades of nylon and polydimethylsiloxane. The results show significantly different ratios from the various grades of boroxiloxane and a consistently high performance from the nylons. Hence the grade of polymers needs to be chosen carefully for the pressure medium in die-less wire drawing, particularly when using polyborosiloxane.
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