Research on Surface Roughness Characteristics of Plastic Die Steel in Magnetic Abrasive Finishing;

Effect factors analysis of surface roughness of bearing ring groove;

Effects of Electromagnetic Field on Surface Roughness of High-activity TiAl Alloys;

The roll grinding and it's quantity of surface include precision,roughness of surface and mechanical capability.

The influences of cutting speed on cutting forces,cutting tempera-ture,roughness of surface,surface microstructure,and tool wear have been studied by the experiments.

The result shows that, due to the roughness of surface, the measured interface stress(f′) is always smaller than the actual one(f).

Research on improving surface roughness degree of metal parts;

With a precision instrument for surface roughness degree, the paper measures the surface roughness degree of the bamboo treated with "hot-in and hot-out" and "cold-in and cold-out" process and the bamboo in the nature condition, analyzes and treats the measuring results with mathematics methods.

The Theorical Discussion for the Contradiction Between the Productivity and the Roughness in EDM;

The effect of different polishing methods on the ceramic roughness;

Improving the accuracy and surface finish of the micro-hole is an important research issue for the micro-hole machining.

Analysis through forced vibration and cot self activated vibration,surface finish and CV value is much improved.