ガラスブラスト法によるワイヤ放電加工面の仕上げ処理

抄録

This paper describes the finishing method of the glass beads blasting to the wire-EDMed surface. The EDMed surfaces have been polished and shot-peened within several seconds with the glass beads blasting. The surface roughness is considerably improved without any changing of the dimensional tolerances. The level of the rougness value at the blasted surface is fixed with the grain size of the beads. The higher blasting pressure from nozzle gives the finer roughness to the relatively rough EDMed surface. This method enables the required surface finish without further work. The wear resistance of the blasted specimen is improved than that of the as-EDMed specimen.
The induction of the residual compressive stresses in the blasted surface can be also obtained.