切削过程绝热剪切带的滑移线场研究

doi:10.3901/JME.2022.07.284

机械工程学报 ›› 2022, Vol. 58 ›› Issue (7): 284-294.doi: 10.3901/JME.2022.07.284

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切削过程绝热剪切带的滑移线场研究

王敏杰, 王阳, 魏兆成, 段春争

大连理工大学精密与特种加工教育部重点实验室大连 116024

收稿日期:2021-04-25 修回日期:2021-10-08 出版日期:2022-05-20 发布日期:2022-05-20
通讯作者: 魏兆成(通信作者),男,1981年出生,博士,副教授。主要研究方向为切削理论与技术、高质高效数控加工技术。E-mail:wei_zhaocheng@dlut.edu.cn
作者简介:王敏杰,男,1958年出生,教授,博士研究生导师。主要研究方向为切削理论与技术、模具技术、聚合物成型技术。E-mail:mjwang@dlut.edu.cn;王阳,男,1996年出生,硕士研究生。主要研究方向为高速切削理论。E-mail:wy20182021@mail.dlut.edu.cn;段春争,男,1971年出生,博士,教授。主要研究方向为切削理论与技术、先进制造技术。E-mail:duancz@dlut.edu.cn
基金资助:
国家自然科学基金(U1908231，52075076)和国家重点研发计划(2019YFA0705304)资助项目。

Slip Line Field of Adiabatic Shear Band in Cutting Process

WANG Minjie, WANG Yang, WEI Zhaocheng, DUAN Chunzheng

Key Laboratory of Ministry of Education for Precision and Non-traditional Machining, Dalian University of Technology, Dalian 116024

Received:2021-04-25 Revised:2021-10-08 Online:2022-05-20 Published:2022-05-20

摘要/Abstract

摘要： 根据滑移线场理论，对于切削过程绝热剪切带内的塑性变形，提出了一种四边界五区域滑移线场模型，并给出了相应的速矢图。定义了包括刀屑摩擦接触边界、刚塑性边界、准刚塑性边界和准自由边界的绝热剪切带滑移线场边界。根据不同的应力边界条件、绝热剪切带内滑移线场应力变化趋势和滑移线场几何形状分析，将绝热剪切带滑移线场划分为五个区域。采用矩阵算子法确定了滑移线场模型的几何参量，给出了求解绝热剪切带内应力分布的方法。采用提出的绝热剪切带滑移线场模型，对于正交切削FV520(B)不锈钢材料，分析计算了由于绝热剪切引起的导裂角随刀具前角和切削速度的变化规律。通过已加工表面几何形貌实验观察，印证了导裂角与已加工表面质量的相关性。

关键词: 切削过程, 绝热剪切带, 滑移线场, 导裂角, 已加工表面质量

Abstract: According to the slip line field theory, a slip line field model with four boundaries and five zones is proposed for the plastic deformation in the adiabatic shear band formed in the cutting process, and the corresponding velocity vector diagram is given. The boundary of slip line field of adiabatic shear band is defined, which includes the friction contact boundary, rigid-plastic boundary, quasi-rigid-plastic boundary and quasi-free boundary. The slip line field of adiabatic shear band is divided into five zones according to different stress boundary conditions, stress variation trend and geometry of slip line field. The geometric parameters of the slip line field model are determined by matrix operator method, and the method to solve the stress distribution in adiabatic shear band is given. The slip line field model of adiabatic shear band is used to calculate the variation of the crack conduction angle caused by adiabatic shear band with the tool rake angle and cutting speed for the orthogonal cutting FV520 (B) stainless steel. The correlation between the crack conduction angle and the machined surface quality is verified by the experiment of the machined surface geometry.

Key words: cutting process, adiabatic shear band, slip line field, crack conduction angle, machined surface quality

中图分类号:

O346
TG501

王敏杰, 王阳, 魏兆成, 段春争. 切削过程绝热剪切带的滑移线场研究[J]. 机械工程学报, 2022, 58(7): 284-294.

WANG Minjie, WANG Yang, WEI Zhaocheng, DUAN Chunzheng. Slip Line Field of Adiabatic Shear Band in Cutting Process[J]. Journal of Mechanical Engineering, 2022, 58(7): 284-294.

参考文献

[1] FANG N. Slip-line modeling of machining with a rounded-edge tool-Part I:New model and theory[J]. Journal of the Mechanics and Physics of Solids,2003,51(4):715-742.
[2] FANG N. Slip-line modeling of machining with a rounded-edge tool-Part II:Analysis of the size effect and the shear strain-rate[J]. Journal of the Mechanics and Physics of Solids, 2003,51(4):743-762.
[3] 王加春,谢久明. 基于滑移线理论的切屑上卷半径计算与分析[J]. 机械设计,2013,30(12):54-57. WANG Jiachun,XIE Jiuming. Analysis of chip up-curl radius based on slip-line theory[J]. Journal of Machine Design,2013,30(12):54-57.
[4] JIN X,ALTINTAS Y. Slip-line field model of micro-cutting process with round tool edge effect[J]. Journal of Materials Processing Technology, 2011,211(3):339-355.
[5] UYSAL A,ALTAN E. A new slip-line field modeling of orthogonal machining with a rounded-edge worn cutting tool[J]. Machining Science & Technology, 2014, 18(3):386-423.
[6] OZTURK S,ALTAN E. A slip-line approach to the machining with rounded-edge tool[J]. International Journal of Advanced Manufacturing Technology,2012,63(5-8):513-522.
[7] OZTURK S, ALTAN E. Slip-line metal cutting model with negative rake angle[J]. Journal of the Brazilian Society of Mechanical Sciences and Engineering,2012,34(3):246-252.
[8] 史红艳,赵先锋,姜雪婷. 滑移线场理论在正交切削过程中的研究现状[J]. 华南理工大学学报,2019,47(1):14-31. SHI Hongyan,ZHAO Xianfeng,JIANG Xueting. Current research on the application of slip line field theory in the orthogonal cutting process[J]. Journal of South China University of Technology,2019,47(1):14-31.
[9] 庄可佳,胡诚,代星,等. 基于修正滑移线场模型的倒棱刀具切削力预测[J]. 中国机械工程,2021,32(8):890-900. ZHUANG Kejia,HU Cheng,DAI Xing,et al. Analytical prediction of cutting force for chamfered inserts based on a modified slip-line field model[J]. China Mechanical Engineering,2021,32(8):890-900.
[10] UYSAL A,JAWAHIR I S. A slip-line model for serrated chip formation in machining of stainless steel and validation[J].The International Journal of Advanced ManufacturingTechnology,2019,101(9):2449-2464.
[11] UYSAL A,ALTAN E. Slip-line field modelling of rounded-edge cutting tool for orthogonal machining[J]. Proceedings of the Institution of Mechanical Engineers, Part B:Journal of Engineering Manufacture,2016,230(10):1925-1941.
[12] WILLIAMS J A. Mechanics of machining:An analytical approach to assessing machinability[J]. Wear,1991,150(1-2):380-381.
[13] MANYINDO B M,OXLEY P L B. Modelling the catastrophic shear type of chip when machining stainless steel.[J]. Proceedings of the Institution of Mechanical Engineers, Part C:Mechanical Engineering Science,1986,200(C5):349-358.
[14] DEWHURST P, COLLINS I F. Matrix technique for constructing slip-line field solutions to a class of plane strain plasticity problems.[J]. International Journal for Numerical Methods in Engineering, 1973,7(3):357-378.
[15] DEWHURST P. General matrix operator for linear boundary value problems in slip-line field theory.[J]. International Journal for Numerical Methods in Engineering,1985,21(1):169-182.
[16] 黄燊华. 切削力学[M]. 北京:机械工业出版社,1988. HUANG Shenhua. Cutting mechanics[M]. Beijing:China Machine Press,1988.

切削过程绝热剪切带的滑移线场研究

Slip Line Field of Adiabatic Shear Band in Cutting Process

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