面向碳-碳复合材料的激光和水射流组合制孔工艺仿真建模和实验研究  

Simulation modeling and experimental study on hole making process combined laser and water jet for carbon-carbon composite material

作　　者：朱超凡 陈晓川[1] 鲍劲松[1] Zhu Chaofan;Chen Xiaochuan;Bao Jinsong(Intelligent Manufacturing Institute of College of Mechanical Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学机械工程学院

出　　处：《现代制造工程》2020年第1期10-17,共8页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51575352)

摘　　要：针对碳-碳复合材料在孔加工过程中容易出现撕裂、分层等缺陷的问题,提出了碳-碳复合材料的激光和高压磨料水射流组合制孔工艺。先采用激光对碳-碳复合材料进行预制孔,再利用高压磨料水射流进行切割扩孔,对水射流直接冲击制孔和激光与水射流组合工艺制孔仿真过程中碳-碳复合材料内部应力和层间位移大小进行对比分析。结果表明,利用激光与高压磨料水射流组合制孔工艺,可以有效减少碳-碳复合材料在孔加工过程中受到的应力,从而减少其出现分层的现象,改善和提高了碳-碳复合材料孔的质量。通过开展相应的实验,验证了激光与水射流组合加工工艺去除碳-碳复合材料可获得较好的制孔效果,证实了模型的正确性。Aiming at the problems of defects such as tearing and delamination in carbon-carbon composite material during the punching process,a combination hole making process of laser and high-pressure abrasive water jet for carbon-carbon composite material was proposed.Firstly,the carbon-carbon composite material was pre-punched by laser,and then the high-pressure abrasive water jet was used for cutting and reaming.Contrasted and analyzed the internal stress and interlayer displacement of carbon-carbon composite material during the simulation of water jet direct impact hole making and combination of laser and water jet.The results show that by using the combination of laser and high-pressure abrasive water jet to make the hole,the stress of the carbon-carbon composite material during the hole processing can be effectively reduced,thereby reducing the occurrence of delamination of the carbon-carbon composite material,and improving the quality of the carbon-carbon composite material holes.By performing corresponding experiments to verify the combination of laser and water jet processing to remove carbon-carbon composite material,better hole processing results can be obtained,and the correctness of the model is confirmed.

关 键 词：高压磨料水射流 碳-碳复合材料 ANSYS/LS-Dyna软件 

分 类 号：TH164[机械工程—机械制造及自动化]