Patent ID: 8966751
Filing Date: 2015-03-03
Classification: B22D,B22F,C22C,Y10T

Abstract:
1. A method for producing a MMC cylinder liner comprising an inner tubular portion including a metal matrix composite formed of a compact impregnated with an Al—Si alloy, the compact being made of a reinforcing material; and an outer tubular portion formed of the Al—Si alloy, wherein the method comprises: fitting a compact in a tubular form that has a generally circular cross-section over a core having generally cylindrical configuration, wherein the compact is made of a reinforcing material and has an outer periphery; providing at least one mold around the outer periphery of the compact to form a cavity in a tubular form that has a generally circular cross-section, wherein the at least one mold includes an end in the axial direction of the at least one mold; providing a melted Al—Si alloy via a gate disposed at or near the end; and increasing a supply rate of the melted Al—Si alloy immediately before completion of filling of the melted Al—Si alloy into the cavity.