Firstly,make the workpiece basic processed in the general purpose lathes with general cutter,then,use tbe metal surface finishing cutter again,just one time process,the surface roughness will reach less than Ra0.2 easily,it just like iron the clothes,and creat hiting stress on the surface at the same time,the mico hardness will be improved more than 20%,the wear resisitance will be improved greatly and the life will be improved 5 ~10 times.