基于DEFORM的7075铝合金切削过程仿真研究
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摘要
以7075铝合金为例,利用DEFORM仿真软件中的车削模块,建立铝合金切削有限元模型,对仿真结果进行分析,得到切削过程中切削力变化、工件应力及刀具表面切削温度分布等相关试验数据。通过切削力的测量试验验证仿真结果的有效性,结果表明仿真值与测量值的变化趋势一致,证明了仿真后处理结果的有效性。在此基础上研究刀具几何形状对切削过程的影响,该方法为生产实践中确定切削7075铝合金的刀具几何形状提供了新途径。
Taking 7075 aluminum alloy as the cutting carrier,the finite element model of aluminum alloy cutting is established by using the turning module in DEFORM simulation software. The simulation results are analyzed and the cutting force variation,workpiece stress and cutting surface heat distribution are obtained. Through the cutting force measurement experiment,the results show that the variation trend of simulation value is consistent with that of measurement value,which proves the validity of the simulation post processing results. Based on this result,the influence of the tool geometry on the cutting process is studied. This method provides a new way to determine the tool geometry of cutting 7075 aluminum alloy in practice.
Taking 7075 aluminum alloy as the cutting carrier,the finite element model of aluminum alloy cutting is established by using the turning module in DEFORM simulation software. The simulation results are analyzed and the cutting force variation,workpiece stress and cutting surface heat distribution are obtained. Through the cutting force measurement experiment,the results show that the variation trend of simulation value is consistent with that of measurement value,which proves the validity of the simulation post processing results. Based on this result,the influence of the tool geometry on the cutting process is studied. This method provides a new way to determine the tool geometry of cutting 7075 aluminum alloy in practice.
引文
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[6]廖玉松,韩江.基于Advant Edge的7050铝合金切削参数优化及实验研究[J].系统仿真学报,2015,27(7):1496-1501.
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[9]曲海军,杨金花,王贵成,等.直角切削过程中应变的有限元分析[J].机械科学与技术,2013,32(1):59-62.
[10]成群林,柯映林,董辉跃.航空铝合金高速铣削加工的有限元模拟[J].浙江大学学报:工学版,2006,40(1):113-117.
[11]Shi H A J,Yang H T Y.Experimental and finite element predictions of residual stresses due to orthogonal metal cutting[J].International Journal for Numerical Methods in Engineering,1993,36(9):1487-1507.
[12]Sanchez Y,Trujillo F J,Sevilla L,et al.Study of the influence of the cutting parameters on the chip geometry during machining alloy UNS A97075[J].Procedia Engineering,2015,132:513-520.
[13]于凯强,郭文亮,贾涛.金属切削刀具结构优化与仿真分析[J].工具技术,2017,51(6):69-72.
[14]李智,刘彦伯.金属薄壁零件切削过程的三维仿真[J].工具技术,2016,50(5):49-52.
[2]张蓉蓉,赵先锋,李长虹,等.基于DEFORM-3D的铝合金7075车削力模型的研究[J].组合机床与自动化加工技术,2016(6):59-62.
[3]Agustina B de,C Bernal,Camacho A M,et al.Experimental analysis of the cutting forces obtained in dry turning processes of UNS A97075 aluminium alloys[J].Procedia Engineering,2013,63:694-699.
[4]Sanchez Y,Trujillo F J,Sevilla L,et al.Study of the influence of the cutting parameters on the chip geometry during machining alloy UNS A97075[J].Procedia Engineering,2015,132:513-520.
[5]孙会来,李丹,赵方方,等.基于ABAQUS的航空7075铝合金切削二维仿真[J].天津工业大学学报,2017,36(1):83-88.
[6]廖玉松,韩江.基于Advant Edge的7050铝合金切削参数优化及实验研究[J].系统仿真学报,2015,27(7):1496-1501.
[7]贾特,李嫚,张弘弢,等.PCD刀具几何参数对铝合金切削力的影响[J].工具技术,2007,41(4):32-35.
[8]周春雷.基于DEFORM的铝合金切削力仿真与试验[J].工具技术,2016,50(1):87-90.
[9]曲海军,杨金花,王贵成,等.直角切削过程中应变的有限元分析[J].机械科学与技术,2013,32(1):59-62.
[10]成群林,柯映林,董辉跃.航空铝合金高速铣削加工的有限元模拟[J].浙江大学学报:工学版,2006,40(1):113-117.
[11]Shi H A J,Yang H T Y.Experimental and finite element predictions of residual stresses due to orthogonal metal cutting[J].International Journal for Numerical Methods in Engineering,1993,36(9):1487-1507.
[12]Sanchez Y,Trujillo F J,Sevilla L,et al.Study of the influence of the cutting parameters on the chip geometry during machining alloy UNS A97075[J].Procedia Engineering,2015,132:513-520.
[13]于凯强,郭文亮,贾涛.金属切削刀具结构优化与仿真分析[J].工具技术,2017,51(6):69-72.
[14]李智,刘彦伯.金属薄壁零件切削过程的三维仿真[J].工具技术,2016,50(5):49-52.