钛合金水助激光打孔试验研究  

Experimental Study on Waterjet Assisted Laser Drilling of Titanium Alloy

作　　者：王佳佳 王斌 袁臣虎[2,3,4] 于爱兵 张文武[2,3] WANG Jiajia;WANG Bin;YUAN Chenhu;YU Aibing;ZHANG Wenwu(Ningbo University,Ningbo 315211,China;Key Laboratory of Aero Engine Extreme Manufacturing Technology of Zhejiang Province,Ningbo 315201,China;Ningbo Institute of Materials Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]宁波大学,宁波315211 [2]浙江省航空发动机极端制造技术研究重点实验室,宁波315201 [3]中国科学院宁波材料技术与工程研究所,宁波315201 [4]浙江工业大学,杭州310014

出　　处：《航空制造技术》2023年第9期99-111,共13页Aeronautical Manufacturing Technology

摘　　要：为了提高激光打孔的质量,采用水助激光扫描加工方法对钛合金进行激光打孔试验研究,通过响应曲面法设计试验,研究了各加工参数对孔径和孔锥度的影响关系。结果表明,对孔径的影响程度由大到小依次为激光器电流、脉冲频率和水泵电压;对孔锥度的影响程度由大到小依次为脉冲频率、激光器电流和水泵电压。当优选激光器电流33.6818 A、脉冲频率30.6818 kHz、水泵电压12.6818 V时,孔入口直径最小、孔出口直径最大、孔锥度最小。同时,还发现水助激光加工通孔直径大于空气中加工,但孔锥度减小了33.2%。In order to improve the quality of laser drilling,laser drilling experiments of titanium alloy by using the waterjet assisted laser scanning machining method was investigated,the effects of process parameters on the hole diameter and hole taper of titanium alloy were analyzed by response surface methodology.The results show that the impacts of hole diameter are the laser current,pulse frequency and pump voltage in descending order.While the effects of pulse frequency,laser current and pump voltage on hole taper are in descending order.When the optimal laser current is 33.6818 A,pulse frequency is 30.6818 kHz and pump voltage is 12.6818 V,the hole entrance diameter and hole taper are the minimum,the hole exit diameter is the maximum.At the same time,it is found that the hole diameter in waterjet assisted laser machining is larger than that in the air machining,but the hole taper is reduced by 33.2%.

关 键 词：激光加工 钛合金 孔锥度/直径 响应曲面法 参数优化 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]