SiC电火花加工技术研究
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摘要
SiC具有硬度高、脆性大的特点,很难采用传统的机械加工方法对其进行加工,只能采用非常规的磨削加工,但其加工效率极低、成本高。针对上述问题,研究了一种有效的SiC加工方式。通过设计电火花正交试验,研究SiC电火花成型加工中不同电参数(伺服参考电压、峰值电流、脉宽时间和脉间时间)对SiC电火花加工效率的影响,探究出最佳电参数组合,并在此基础上利用阵列电极加工,使加工效率得到大大提高,这对将来加工具有多腔形状的SiC产品具有指导意义。
It was difficult to machining SiC by using traditional machining way,because of its high hardness,brittleness,so only the unconventional abrasive machining can meet the requirement,but the machining efficiency was low and the cost was high,it was imperative to have a effective way of machining SiC.Based on the electrical discharge orthogonal test,the impacts of different electrical parameters(servo voltage,peak current,pulse width,interpulse)on the SiC machining efficiency were researched,the best electrical parameters group for machining SiC were gotten.And on the condition of that,the machining efficiency was drastically improved by using array electrodes machining,it had directing meaning for machining multi-cavity shape products.
It was difficult to machining SiC by using traditional machining way,because of its high hardness,brittleness,so only the unconventional abrasive machining can meet the requirement,but the machining efficiency was low and the cost was high,it was imperative to have a effective way of machining SiC.Based on the electrical discharge orthogonal test,the impacts of different electrical parameters(servo voltage,peak current,pulse width,interpulse)on the SiC machining efficiency were researched,the best electrical parameters group for machining SiC were gotten.And on the condition of that,the machining efficiency was drastically improved by using array electrodes machining,it had directing meaning for machining multi-cavity shape products.
引文
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[2]姚志雄,黄健,王欣.航天反射镜材料SiC[J].红外,2005,22(4):22-25.
[3]陆有军,王燕民,吴澜尔,等.碳/碳化硅陶瓷基复合材料的研究及应用进展[J].材料导报,2010,24(21):14-19.
[4]孙红岩,周启飚,姚亚斌,等.SiClAl复合材料在轻质反射镜系统中的应用[J].新技术新工艺,2017(1):73-75.
[5]刘晋春,白基成,郭永丰.特种加工[M].北京:机械工业出版社,2008.
[6]聂常瑞.基于内充液回转电极电火花铣削加工的加工工艺研究[D].太原:太原理工大学,2017.
[7]刘宇,王文建,马付建,等.电火花加工中多材质电极损耗规律的实验研究[J].电加工与模具,2017(6):10-15.
[8]刘振学,王力.实验设计与数据处理[M].2版.北京:化学工艺出版社,2015.
[9]刘瑞江,张业旺,闻崇炜,等.正交试验设计和分析方法研究[J].实验技术与管理,2010,27(9):52-55.
[10]边留进,林子超,孙方宏,等.基于正交试验的慢走丝电火花线切割加工的参数优化[J].现代制造工程,2013(10):1-5.
[11]曾伟梁.微细阵列电极阵列孔的组合电加工关键技术研究[D].哈尔滨:哈尔滨工业大学,2008.