前混合磨料射流切割聚变堆第一壁钨材料研究  

Study on cutting first wall tungsten material for fusion reactor by premixed abrasive jet

作　　者：王岩 张西洋[3] 周自波[1,2] 姚达毛 WANG Yan;ZHANG Xi-yang;ZHOU Zi-bo;YAO Da-mao(Institute of Plasma Physics,ChineseAcademy of Sciences,Hefei 230031;University of Science and Technology of China,Hefei 230026;Anhui University of Science and Technology,School of Mechanical Engineering,Huainan 232001)

机构地区：[1]中国科学院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026 [3]安徽理工大学机械工程学院,淮南232001

出　　处：《核聚变与等离子体物理》2021年第1期85-90,共6页Nuclear Fusion and Plasma Physics

基　　金：国家重点研发计划(2017YFA0402504);安徽高校自然科学研究重点项目(KJ2018A0079)。

摘　　要：针对聚变堆第一壁钨材料的加工问题,开展前混合磨料射流切割钨试验,研究切面表面形貌,分析射流压力和切割速度对切面粗糙度、切面光滑区深度的影响。结果表明:切割速度对粗糙度影响较大,减小切割速度可以降低切面粗糙度;射流压力对粗糙度影响略小,提高射流压力可以增加切面光滑区深度,改善切面质量。试验发现切面存在拖尾纹、残余楔角和冲蚀凹坑等现象,需要通过喷嘴角度补偿等方法予以抑制或消除,以提高切面加工质量。The experiment of tungsten cutting with pre-mixed abrasive jet is carried out to solve the problem of tungsten difficult to machine for first wall in fusion reactor.The surface morphology of the cut surface is studied,and the effects of jet pressure and cutting speed on the surface roughness and the depth of the smooth zone of the cut surface are analyzed.The results show that cutting speed has a great influence on the roughness,and cutting speed can reduce the roughness of the cut surface.The influence of jet pressure on the roughness is slightly smaller than that of the cutting speed,and the increase of jet pressure can increase the depth of smooth area of cut surface and improve the quality of cut surface.It is found that there are trailing marks,residual wedge angle and erosion pits on the cutting surface,which need to be suppressed or eliminated by nozzle angle compensation to improve the processing quality of the cutting surface.

关 键 词：磨料水射流 聚变堆 钨 切割试验 

分 类 号：TH161.14[机械工程—机械制造及自动化]