Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 22, 2016 - October 23, 2016
Surface finishing technology by EDM has recently progressed, and very small surface roughness can be readily obtained by controlling the electrical discharge conditions or by using metal powder mixed working fluids. In addition, it was reported that EDMed surface using metal powder mixed fluids sometimes had high surface functions, such as high hardness, high corrosion resistance and so on. Therefore, the high functional EDM finished surface is well expected to be applied as a final metal mold surface. In this study, a cheap metal mold steel with low chromium content was processed by EDM with chromium powder mixed fluid. Then the surface characteristics such as surface hardness, releasability of molded resin, and corrosion resistance could be improved by EDM with chromium powder mixed fluid.
