Because of bowl insulator casting mold’s dimensions is very big

and the mold cavity is high precision

so it’s difficult to guarantee the manufacture quality.According to the machining process characteristics

the author designs the bulge mold processing routes

the operation drawing of rough turn

the coordinate position drawing of finish turning and the unity proof plate

and through the proper selection of machines equipment

cutting tools and cutting parameters process measures to guarantee the processing quality of the bulge model cavity.When the parts processing is completed by the full range of detection

the size

shape and position tolerances and surface roughness fully meet the requirements of the drawings

through trial pouring test

the full set of casting mold fully meet quality.