王梁 Wang Liang, 谢颂伟 Xie Songwei, 范思远 Fan Siyuan, 王亚星 Wang Yaxing, 葛鸿浩 Ge Honghao, 胡勇 Hu Yong, 董刚 Dong Gang, 姚建华 Yao Jianhua
{"title":"电磁复合场驱动激光减材直接成型V型槽形貌研究","authors":"王梁 Wang Liang, 谢颂伟 Xie Songwei, 范思远 Fan Siyuan, 王亚星 Wang Yaxing, 葛鸿浩 Ge Honghao, 胡勇 Hu Yong, 董刚 Dong Gang, 姚建华 Yao Jianhua","doi":"10.3788/cjl221032","DOIUrl":null,"url":null,"abstract":"研究了电磁复合场对激光减材加工V型槽形貌的影响。在激光减材过程中同时施加稳态电场与稳态磁场,以获得定向洛伦兹力,从而驱动熔池排溢;通过实验研究了激光参数以及电磁场参数对V型槽形貌的影响规律。实验结果显示:在电磁复合场环境下通过改变激光参数得到了角度范围为34.82°~65.20°、深度范围为1719~5667 μm的V型槽;角度随着激光功率的增加和扫描速度的降低而减小,深度随着激光功率的增加和扫描速度的降低而增大;当激光功率为1800 W时,随着磁感应强度从0 mT增大至1200 mT,V型槽底部的重熔层厚度从764 μm下降至42 μm;材料去除效率主要受激光功率的影响,并随着激光功率的增加而增大。加工出的目标V型槽的角度公差等级为精密(f),深度线性公差等级为中等(m),表面粗糙度Ra值为22.4 μm。稳态磁场与稳态电场所提供的向上的洛伦兹力克服重力及表面张力驱动熔池向上流动,熔体以多次飞溅的形式脱离基体,实现一次直接成型V型槽。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":null,"pages":null},"PeriodicalIF":1.8000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3788/cjl221032","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}