Abstract
In this paper, wear mechanism of soft metals rubbed by hard metal is discussed by considering the adhesive term in frictional force and the effect of surface roughness. New expression for metal wear is obtained as follows
Ws*=W/FL=kH/1+kH·β/τ
Where W; Metal Wear (mm3), F; Frictional Force (kg), L; Rubbing Distance (mm),
H; Maximum Height of Surface Roughness(μ), τ; Shear Strength of Soft Metals (kg/mm2), k, β; Constant value respectively.
Wear tests of many kinds of soft metal as copper, aluminum, lead and so on, to fresh carbon steel plate are carried out by varying load and surface roughness of steel plate. The results show good agreement with the above expression for metal wear.
