According to the secondary development of the tool of marking surface roughness under the condition of AutoCAD2000/2000i with VBA, a program used to mark surface roughness automatically is given and the basic technology and its development of the tool are illustrated which are used to mark surface roughness.

Aimed at the lack of function of surface roughness marking in AutoCAD available,the self-marking of roughness on engineering drawings in the environment of AutoCAD was realized by using secondarily developed software package built in AutoCAD and its strong and quick development environment provided by AutoCAD ActiveX automation.

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;