[1]咸成吉,朴成道,尹凤哲.42CrMo合金结构钢的切削加工有限元分析[J].延边大学学报(自然科学版),2015,41(02):170-174.
　XIAN Chengji,PIAO Chengdao,YIN Fengzhe.Cutting process of 42CrMo structural alloy steel by finite element analysis[J].Journal of Yanbian University,2015,41(02):170-174.
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42CrMo合金结构钢的切削加工有限元分析

《延边大学学报(自然科学版)》[ISSN:1004-4353/CN:22-1191/N] 卷: 第41卷 期数: 2015年02期 页码: 170-174 栏目: 应用科学研究 出版日期: 2015-05-30
Title:
Cutting process of 42CrMo structural alloy steel by finite element analysis
作者:
咸成吉1;  朴成道2;  尹凤哲2
1.延边大学工学院 机械工程系; 2.延边大学工学院 工程训练中心: 吉林 延吉 133002
Author(s):
XIAN Chengji1;  PIAO Chengdao2;  YIN Fengzhe2
1.Department of Mechanical Engineering, College of Engineering, Yanbian University; 2.Engineering Training Center, College of Engineering, Yanbian University: Yanji 13002, China
关键词:
等效应力;  等效应变;  切削力;  切削温度
Keywords:
effective stress;  effective strain;  cutting force;  cutting temperature
分类号:
TG506.7
文献标志码:
A
摘要:
采用有限元方法构建了42CrMo(美国牌号AISI 4140)合金钢的正交切削仿真模型,并对其进行了二维有限元仿真.切削仿真中,利用Johnson-Cook本构模型确立工件材料模型,刀屑界面摩擦采用剪切摩擦,分析温度场时把热传导系数设置为在刀屑界面上产生的压力函数.切削仿真结果表明:增大刀具前角,切削力下降; 提高切削速度,则切削温度上升,等效应变速率明显加快.
Abstract:
The structural alloy steel 42CrMo(AISI 4140)is simulated using orthogonal cutting model by two dimensional finite element methods. In the process of the simulations, the workpiece material modeling in machining is established by the Johnson-Cook constitutive model, the friction at the interface of the chips and the rake face of the tools applied using shear frictions, and the thermal conductivity coefficients are suggested as the functions of normal stresses at the interface when analyzing temperature fields. From the cutting simulations, the results show that cutting forces are decreased with increasing rake angles, and cutting temperatures increased and effective strain rates enhanced obviously with increasing cutting speeds. The simulation results mentioned above will provide a valuable reference and guidance for researching on the machining mechanism and the cutting process of structural alloy steels.

参考文献/References:

[1] 李春胜,黄德彬.金属材料手册[M].北京:化学工业出版社,2005:252-253.
[2] 黄绍华,贺凤宝,张伟,等.提高铣刀铣削42CrMo寿命的试验研究[J].组合机床与自动化加工技术,2013,6:127-129.
[3] 图仕捷,李宇智,徐技伟.42CrMo合金结构钢的干切削和近干切削研究[J].机电产品开发与创新,2008,21(4):168-170.
[4] 刘克铭,刘波,马壮,等.干磨和湿磨对42CrMo钢磨削强化的影响[J].兵器材料科学与工程,2012,35(1):65-67.
[5] 朱振国,李旗号.切削淬硬合金钢42CrMo的PCBN刀具磨损机理研究[J].工具技术,2011,45(7):26-28.
[6] Arrazola P J, Arriola I, Davies M A. Analysis of the influence of tool type, coatings, and machinability on the thermal fields in orthogonal machining of AISI 4140 steels[J]. CIRP Annals-manufacturing Technology, 2009,58:85-88.
[7] Mathias Agmell, Aylin Ahadi, Jan-Eric Stahl. The link between plasticity parameters and process parameters in orthogonal cutting[J]. 14th CIRP Conference on Modeling of Machining Operations(CIRP CMMO), 2013,8:224-229.

备注/Memo

收稿日期: 2015-03-12作者简介: 咸成吉(1968—),男,博士,讲师,研究方向为机械CAD/CAE、金属切削技术.

更新日期/Last Update: 2015-05-30