Experimental Study on the Wire Electrical Discharge Machining of Rotary Parts Based on the Response Surface Method

doi:10.12068/j.issn.1005-3026.2018.07.019

Abstract

Abstract: The low speed wire electrical discharge machining (LS-WEDM ) method was used to fabricate the rotary CuW70 workpiece. Box-Behnken experiment of CuW70 was designed with Design-Expert software， and the response surface method was used to analyze the influencing rule of different speed parameters on surface roughness and material removal rate. Then the optimized machining parameters for high machining efficiency and precision were obtained. The results showed that the influencing order of speed parameters on the surface roughness is followed by rotating speed， feeding speed and wire speed. And the influencing order of speed parameters on material removal rate is followed by feeding speed， rotating speed and wire speed. The multi-objective optimizing results indicated that when the rotating speed is 46r/min， the feeding speed is 1.0mm/min， and the wire speed is 45mm/s， the surface roughness is 0.882μm and the material removal rate is 0.625mm³/min.

Key words: low speed wire electrical discharge machining (LS-WEDM), CuW70, response surface method, surface roughness, material removal rate

CLC Number:

TG661

GONG Ya-dong， MA Xiao-teng， SUN Yao. Experimental Study on the Wire Electrical Discharge Machining of Rotary Parts Based on the Response Surface Method[J]. Journal of Northeastern University Natural Science, 2018, 39(7): 1005-1010.

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