The design and composition of a feeding system for the 400t punching auto-line are introduced,and the composition of the controlling system,the design of the controlling manner and the working process of the system are also introduced.

On the basis of the integration of traditional machine tools and hydraulic systems,This machine is composed of main spindle box,centralizer,friction feeding equipment,hydraulic systems and electrical control system.

The methods of SEM,metallurgical microscope and so on were used to analyse microstructure and component of the coatings and self-made mounting grinding abrasion probe aircraft was used to measure the wearing grinding abrasion of Cu-Al2O3 gradient coatings.

Rabinowizc formula oriented abrasive wear model for composite materials;

Behavior testing and errors analyzing on an abrasive wear test device;

Study of some abrasive wear phenomena;

Review on the ninth CIMT(2005)abrasives exhibits;

The two body abrasion wear characteristic of Mn copper nickel alloy matrix cast tungsten carbide composite has been studied using high chromium cast iron as a reference material.