Utilizing stress calculating formula of thick-wall cylinder to which only inner pressure has been applied,allowable maximum size of metallic prefabricated piece enveloped location in liquid-solid composite casting has been calculated.

It was showed that The metallurgical connection was formed because of the diffusion reaction,interface reaction and formation of the new compounds during the composite casting.

By adopting the compound mold of die mold,furan resin sand and graphite sand,the heavy duty thin wall complex Al-alloy castings have been successfully produced.

Fabricating lining boards for ball mill by means of bimetal casting process;

Cu/SiC_p composite of the composite electroforming technology fabricating;

The composite electroforming technology was employed to fabricate nano-sized alumina particles(nano-Al_2O_3) reinforced copper composite in copper sulfate sulfuric acid plating solution.

In order to explorie a method of preparing particles reinforced metal matrix composites at room temperature, the composite electroforming technique was used to fabricate nano-sized carbide silicon particles (nano-SiC) reinforced copper composite.

Copper-graphite composite tool-electrode material was fabricated by co-electroforming, the relationship of co-electrodepositing conditions and graphite volume content was studied.

Copper-graphite composite tool-electrode materials were fabricated by co-electroforming,and electrical erosion resistance of composite tool-electrode materials was studied experimentally.