Friction and wear characteristics of workpiece and die under self-lubricating hot forging condition of 6061 aluminum alloy
Based on the hot forging conditions,pin-disk friction equipment was used to carry out high-temperature grinding experiments for 6061 hot-forged aluminum alloy and H13 steel-based self-lubricating die materials.The wear mechanisms of the workpiece and die under different working conditions were analyzed by electron probe and energy dispersive spectrum(EDS).The results show that with the increase of load,the friction factor and the wear rate between the workpiece and die first decrease and then increase.With the in-crease of rotation speed,the friction factor between the workpiece and die increases,and the wear rate increases manyfold.When the load is 12 N and the rotation speed is 100 r·min-1,the friction factor between workpiece and die is the smallest,the value is 0.416,and the wear rate is only 24.591 mm3·N-1·m-1.With the increase of rotation speed and load,the adhesive wear between the work-piece and die is aggravated,and the abrasive wear and oxidation wear gradually appear.
万方数据
维普
