电参数对SiC_p/Al复合材料电火花深小孔加工的影响  

The Effect of Electrical Parameters on Processing Deep Micro-hole of the SiC_p/Al

作　　者：兰起洪 王玉魁[1] 王振龙[1] 刘洪政[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001

出　　处：《电加工与模具》2015年第3期26-30,共5页Electromachining & Mould

基　　金：国家自然科学基金资助项目(51275112)

摘　　要：采用电火花内冲液加工方式,分别研究了开路电压、伺服参考电压、电容及电流等电参数对45%SiCp/Al与Al2024合金深小孔加工效率、电极损耗及加工孔径的影响。结果表明:当电源放电能量越大、放电频率越高时,加工效率越高,且电极损耗越大;而在相同加工条件下,SiCp/Al的加工效率和电极损耗都明显高于Al2024合金,且开路电压和电容对SiCp/Al孔径的影响较大。By the way of inner jetted electro-discharge machining ,the effect of the electrical parameters （open-circuit voltage,servo reference voltage,capacitance and current） on material removal rate,tool wear rate and diameter of machining processing deep micro-holes of 45 % SiCp/Al and Al2024 alloy were investigated. It turns out that when the power produces larger discharge energy and higher discharge frequency,the material removal rate and tool wear rate is more. But under the same machining conditions,the material removal rate and tool wear rate of machining SiCp/Al is more than machining Al2024 alloy,in which the open-circuit voltage and capacitance impact the diameter of machining holes greatly.

关 键 词：电火花加工 电参数 SICP/AL 深小孔 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]