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Experimental study of wire cutting electric discharging machining of compound material SiC_p/LY12

WANG Jin (Dept. of M.E.E.of Shaanxi Institute of Technology,Hanzhong 723003,China)  
This paper studies the influence of eletrical parameters on the cutting rate and surface roughness of the cutting compound material SiC p/LY12 in wire cutting electric discharging machining and analysed the surface features of cutting with SEM. It is found that the influence of peak currents and pulse wideth on the cutting rate and the surface roughness are bigger and next comes the influence of the cutting voltage,also that pulse spacing has little influence on the surface roughness and that it has no influence on the surface roughness when it goes up to a certain value. So, a desirable result can be obtained in cutting SiC p/LY12 with adopting larger peak currents and shorter pulse wideth.
【Fund】: 陕西省教委科研基金资助项目!(96JK0 6 1)
【CateGory Index】: TG506
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