A METHOD OF PRODUCING A POWDERED METAL ALUMINIUM BASE BEARING MATERIAL

摘要

An improved method of producing a powdered metal aluminum base bearing material is provided. A bearing strip composed of three layers of sintered aluminum base particles which has been roll clad to a rigid backing layer is subjected to a heat treatment procedure in a continuous manner at a temperature of from about 700 DEG F to about 900 DEG F for at least thirty seconds and then cooled at a rate of at least 100 DEG F/hr. Bearings made from the resulting material show dramatic fatigue life improvement in comparison to that obtainable with currently available powdered metal aluminum bearing materials.