PURPOSE: To manufacture a composite sliding member having high sliding performance by executing hot press sintering to the specific quantities of SiC whisker, graphite powder and Al alloy powder, preheating the composite base material obtd. by executing hot working forming to the sintered body at the specific temp. and inserting this with the specific temp. of molten Al alloy as internal chill.

CONSTITUTION: Mixed material containing 15 - 30vol.% SiC whisker, 2 - 10vol.% graphite powder having ≤10μm the max. particle diameter and the balance Al alloy powder having ≤50μm the max. particle diameter, is heated under vacuum, and after executing degassing treatment, the hot press sintering is executed. The sintered body is hot-worked to form the prescribed shape of composite base material. This is preheated at 400 - 550°C under non-oxidizing atmosphere and set to the position in a mold corresponding to the sliding posi tion. Successively, the molten Al alloy at 600 - 800°C is cast under pressurizing to insert the composite base material as internal chill. As the Al alloy powder, the material having alloy composition containing ≤10wt.% Si component, is used. By this method, the sliding member used under high temp. and severe conditions can be manufactured.