车削参数对超高强度钢车削性能的影响
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摘要
通过正交仿真试验分析300M钢在车削过程中切削速度V、背吃刀量a_p、进给量f以及刀尖圆弧半径r_ε对车削300M钢切削力的影响。采用方差分析法和极差分析法确定车削参数的最优组合,并检验4个因素对切削三向力的显著性。结果表明,4个因素中,背吃刀量a_p对切削力的影响最为显著,其次是进给量和刀尖圆弧半径,切削速度对切削力的影响程度最小。使用MATLAB软件对切削三向力与各个因素之间的关系进行多元线性回归分析,并建立切削三向力经验公式。通过对比分析经验公式与仿真分析得到的三向力,确定经验公式准确可靠。
The orthogonal test is used to analyze the effects of cutting speed,cutting depth,feed rate and corner radius on the three-axis force of turning 300M steel. By using variance analysis and range analysis methods,the optimal combination of turning parameters is determind,and the significance of the four factors on cutting three-axis force is tested. According to the data obtained from the orthogonal test,a multivariate linear regression analysis is performed on the relationship between the cutting force and various factors using MATLAB software,and an empirical formula for the three-axis cutting force is established. By comaring the three-axis force is obtained the empirical formulas with that obtained from the simulation analysis,the accuracy of the empirical formula is verified,which provides a theoretical basis for the selection and optimization of the cutting parameters of 300M steel in the actual turning process.
The orthogonal test is used to analyze the effects of cutting speed,cutting depth,feed rate and corner radius on the three-axis force of turning 300M steel. By using variance analysis and range analysis methods,the optimal combination of turning parameters is determind,and the significance of the four factors on cutting three-axis force is tested. According to the data obtained from the orthogonal test,a multivariate linear regression analysis is performed on the relationship between the cutting force and various factors using MATLAB software,and an empirical formula for the three-axis cutting force is established. By comaring the three-axis force is obtained the empirical formulas with that obtained from the simulation analysis,the accuracy of the empirical formula is verified,which provides a theoretical basis for the selection and optimization of the cutting parameters of 300M steel in the actual turning process.
引文
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[2]赵博,许广兴,贺飞,等.飞机起落架用超高强度钢应用现状及展望[J].航空材料学报,2017,37(6):1-6.
[3]林森.高强钢车铣加工中工件温度场建模与试验研究[D].武汉:华中科技大学,2014.
[4]张慧萍,王崇勋,杜煦.飞机起落架用300M超高强钢发展及研究现状[J].哈尔滨理工大学学报,2011,16(6):73-76.
[5]闫雪,陶华,高晓兵,等.300M超高强度钢高速铣削切削力建模研究[J].机械强度,2008(5):860-863.
[6]刘维民,赵军,艾兴,等.高速车削300M超高强度钢时的Al2O3基陶瓷刀具磨损机理研究[J].摩擦学学报,2011,31(6):564-568.
[7]文杰.300M钢立铣切削力建模与仿真研究[D].武汉:华中科技大学,2013.
[8]刘宜志.正交车铣难加工材料工件端温度场研究[D].武汉:华中科技大学,2014.
[9]肖田,王怀峰,武文革.基于Advant Edge的钛合金Ti6Al4V的高速铣削有限元仿真[J].煤矿机械,2012(5):138-140.
[10]王祺,王大为,赵文侠,等.3Cr13不锈钢弹片断裂分析[J].失效分析与预防,2011,6(4):257-260.
[11]Advant Edge FEM 7.1 User's Manual[M].Third Wave System,2015:152-157.
[12]杜劲,刘战强,张静婕,等.涂层刀具切削淬硬H13模具钢的切削性能研究[J].工具技术,2016,50(10):8-11.
[13]陆建中,孙家宁.金属切削原理与刀具[M].北京:机械工程出版社,2011.