LI Wenping

(Department of Electrical and Mechanical Engineering, Sichuang Informationt Technology College, GuangYuan 628040, China)

 

Abstract: Aiming at problem of wire cutting machine processing aluminum parts,the cutting process characteristics were studied by analyzing the problems usually happened in wire cutting machine while processing aluminum parts.The new schemes of preventing conduction block damaged from Al2O3 produced in the process of aluminum part machining was discussed in the traditional wire cutting machine, the wire electrical device was redesigned. The electrical import was chosen in front of the two wheel axis in order to improve cutting efficiency; the guide wheel shaft should be lengthened to avoid the corrosion caused by spark discharge generated at the guide wheel axis; the graphite was selected to be an excellent conductor contacting with the axis, achieving well selflubrication while the guide wheel rotate. The results indicate that the improved wire cutting machine can guarantee the conductive block works well, reduce the risks of wire breaking and short circuit situation, and finally improve the cutting surface quality of aluminum parts.

Key words: aluminum processing; wire cutting; wire electrode; conductive block