Patent ID: 6799371
Filing Date: 2004-10-05
Classification: B23P,B29C,B29L,G05B,Y02P,Y10T

Abstract:
A method for manufacturing a steel tire mold that has two half shells, the method comprising:designing the shapes of the parts of the half shells, an electrode for an electric discharge machine (EDM) and characters and designs adapted to be on a tire rubber wall of a tire using CAD and CAM software; preparing the numerical sequences for said electric discharge machine, a computer numerical controlled (CNC) lathe, a CNC drilling machine and a CNC engraving machine; selecting the appropriate materials for said half shells, said electrode and tools for said machines; cutting and shaping said selected materials for said half shells into designed shapes with said CNC lathe and the numerical sequences; cutting said electrode into a designed shape; cutting said tread design in said half shells by using said electrode with said electric discharge machine and the numerical sequences; cutting said characters and designs in said half shells with said CNC engraving machine and the numerical sequences; and dressing said half shell surfaces to remove burrs.