Study on the effect of steel ball abrasion on surface hardness of workpiece in strengthen grinding processing

摘要

Aiming at the problem of the workpiece surface hardness influenced by the fatigue wear of steel ball during strengthen grinding processing, experimental and mechanical analysis were performed. The relationships between the radius of steel ball and the stress and strain in the machining process were analyzed, the mathematical model of the workpiece surface hardness and residual stress was established, and the results showed that the surface residual stress and the surface hardness increment decreased with the increase of steel ball abrasion.