高温合金GH901车削加工刀具磨损实验测试及理论建模  

Experimental Testing and Theoretical Modeling of Tool Wear in Turning GH901 Superalloy

作　　者：邓亚弟[1] 李炳林 张锐 王春江[1] 向志杨 文举[1] DENG Yadi;LI Binglin;ZHANG Rui;WANG Chunjiang;XIANG Zhiyang;WEN Ju(Dongfang Steam Turbine Co.,Ltd.,Deyang 618000,Sichuan,China;School of Menchatronic Engineering,Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]东方汽轮机有限公司,四川德阳618000 [2]西南石油大学机电工程学院,成都610500

出　　处：《机械科学与技术》2023年第12期2079-2084,共6页Mechanical Science and Technology for Aerospace Engineering

基　　金：四川省区域创新合作项目(2022YFQ0016);德阳市产学研项目(2020CKL006)。

摘　　要：用A、B和C这3种不同型号的刀具,采用40 m/min和60 m/min两种切削速度对高温合金GH901进行了车削实验,通过观察刀具后刀面磨损状态,建立了各类型刀具的主后刀面磨损曲线,并根据刀具磨损情况和磨损曲线对刀具类型进行了优选,最后利用典型磨损曲线建立了刀具磨损预测模型。实验与模型预测结果的最大均方根误差和最大平均绝对误差分别为0.04349,0.03943 mm,误差偏小证明了该预测模型的有效性。综合车削性能由高到低依次是A、B和C刀具。切屑类型以长环形螺旋切屑为主,切削速度越高,刀具寿命明显降低。The turning experiments of Superalloy GH901 were carried out with three different types of cutting tools A,B and C at 40m/min and 60m/min.By observing the tool flank wear state,the life curves of tool are established and the tool types are optimized according to the tool wear and life curves.Finally,the prediction model for tool wearis established.The maximum root mean square error and mean absolute error of the experimental and the prediction results are 0.04349 and 0.03943 mm,respectively,the small error proves the effectiveness of the prediction model.The comprehensive cutting performance from high to low is toolA,tool B and tool C.The chip type is dominated by long annular spiral chips,and the tool life is significantly reduced with the higher cutting speed.

关 键 词：刀具磨损 高温合金GH901 磨损预测模型 车削实验 

分 类 号：TG501.1[金属学及工艺—金属切削加工及机床]