电加工与模具
電加工與模具
전가공여모구
ELECTROMACHINING & MOULD
2015年
2期
17-20
,共4页
陈吉朋%顾琳%徐辉%赵万生
陳吉朋%顧琳%徐輝%趙萬生
진길붕%고림%서휘%조만생
高速电弧放电加工%铝基碳化硅复合材料%加工极性
高速電弧放電加工%鋁基碳化硅複閤材料%加工極性
고속전호방전가공%려기탄화규복합재료%가공겁성
BEAM%SiCp/Al%polarity
研究了高速电弧放电加工铝基碳化硅增强复合材料(SiCp/Al)的性能。通过对体积分数为20%的碳化硅颗粒增强铝基复合材料进行加工实验得出:在峰值电流500 A、脉冲宽度10 ms时,材料去除率超过8200 mm3/min,电极损耗率约为2%。此外,研究了加工极性对工件表面质量的影响,得出电极负极性、大电流可用于大余量材料去除,电极正极性、小电流可用于小余量表面修整的结论。最后,采用高速电弧放电加工实现了碳化硅颗粒增强铝基复合材料的钻孔、铣削和切割等加工工艺。
研究瞭高速電弧放電加工鋁基碳化硅增彊複閤材料(SiCp/Al)的性能。通過對體積分數為20%的碳化硅顆粒增彊鋁基複閤材料進行加工實驗得齣:在峰值電流500 A、脈遲寬度10 ms時,材料去除率超過8200 mm3/min,電極損耗率約為2%。此外,研究瞭加工極性對工件錶麵質量的影響,得齣電極負極性、大電流可用于大餘量材料去除,電極正極性、小電流可用于小餘量錶麵脩整的結論。最後,採用高速電弧放電加工實現瞭碳化硅顆粒增彊鋁基複閤材料的鑽孔、鐉削和切割等加工工藝。
연구료고속전호방전가공려기탄화규증강복합재료(SiCp/Al)적성능。통과대체적분수위20%적탄화규과립증강려기복합재료진행가공실험득출:재봉치전류500 A、맥충관도10 ms시,재료거제솔초과8200 mm3/min,전겁손모솔약위2%。차외,연구료가공겁성대공건표면질량적영향,득출전겁부겁성、대전류가용우대여량재료거제,전겁정겁성、소전류가용우소여량표면수정적결론。최후,채용고속전호방전가공실현료탄화규과립증강려기복합재료적찬공、선삭화절할등가공공예。
The machining performance of SiC particle reinforced aluminum composite (SiCp/Al) was investigated by using the blasting erosion arc machining (BEAM) method. A set of experiments were conducted on SiCp/Al materials with vol.20 % SiC to find out that when the peak current is 500 A and the pulse duration is 10 ms,the material removal rate could be greater than 8200 mm3/min with the tool wear rate of about 2 %. Besides,the influence of polarity on the machining performance was also studied. It was disclosed that a large peak current with negative electrode is suitable for bulk mass material removal,while a small peak current with positive electrode is suitable for semi-finish machining. Finally,different features were machined with BEAM methods such as drilling,milling and cutting which demonstrated the flexibility of BEAM for the machining of SiCp/Al.