Fabrication of monolithic piston, for high performance internal combustion engine, involves thixotropic forging of steel or other alloys with elevated mechanical properties

摘要

The fabrication of a monolithic piston for an internal combustion engine involves reheating of a blank to an intermediate temperature between the solidus and liquidus temperatures and forming by thixotropic forging. An Independent claim is also included for a monolithic piston fabricated by this method.