The application of P/M frictional material in making clutch frictional pieces for forgingmachines was introduced.These pieces are fitted on the hollow cast iron substrate with steel rivets.

• 介绍了粉末冶金摩擦材料在锻压机床上作离合器片的应用情况，提出了铸铁衬背中空铸造和铆接方法，能较好地满足使用要求。