直角切削过程中应变的有限元分析

曲海军; 杨金花; 王贵成; 刘旭; 朱云明

直角切削过程中应变的有限元分析

1.
河南理工大学机械与动力工程学院, 焦作 454000;
2.
江苏大学机械工程学院, 镇江 212013

基金项目:

国家自然科学基金项目(51005192,50675088,B2012-054)资助

详细信息

作者简介:
曲海军(1980-),讲师,博士,研究方向为毛刺形成机理与控制,切屑,quhaijun006@126.com

计量
- 文章访问数: 116
- HTML全文浏览量: 16
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2011-03-04

FEM Analysis of Strain in Orthogonal Cutting

1.
School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000;
2.
School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013

摘要

摘要: 基于材料模型,断裂准则,刀具与工件以及切屑的接触关系等建立了分析直角切削过程中应变的有限元模型。根据有限元分析结果分析了正常切削过程中3个变形区和两侧方向应变以及应变造成的主要影响,两侧方向应变形成了两侧方向毛刺;第一变形区和第三变形区的应变使工件表面产生了变质层;第一变形区和第二变形区形成切屑并影响切屑的应变分布。
- 两侧方向应变 /
- 两侧方向毛刺 /
- 变质层 /
- 切屑 /
- 有限元方法 /
- 切削过程
Abstract: A finite element model was developed to simulating the strain in orthogonal cutting process based on thematerial model,fracture criterion and contact relationship between cutter and workpiece. According to analysis re-sults of FEM,three deformation zones and two side direction strains were analyzed; and two side direction burrswere formed as results of two side direction strain. Finished surface material becomes affected layer due to primarydeformation zone and third deformation zone. Cutting layer material becomes chip in primary deformation zone andsecond deformation zones,and the strain distribution of chip was determined by these two deformation zones. Finiteelement model generated here provided a numerical analysis method to study the burr formation mechanism,affect-ed layer and strain of chip.
- two side direction strain|two side direction burr|affected layer|chip|finite element method /
- cutting process /

HTML全文

参考文献(14)

[1]	王贵成. 金属切削毛刺 [M ]. 吉林:吉林科学技术出版社,1997
[2]	Wang G C,Shen C G,Pei H J,et al. Formation and control oftwo side direction burr[J]. Advanced Materials Research,2007,24-25:39～44
[3]	朱云明. 金属切削毛刺的形成与控制研究[D]. 镇江:江苏大学,2006
[4]	Nakayama K,Arai M. Burr formation in metal cutting[J]. Annalsof the CRIP,1987,36(1):33～36
[5]	樊曙天. 精密车削中毛刺生成机理的研究[D]. 镇江:江苏理工大学,1997
[6]	Qu H J,Wang G C,Pei H J,et al. Formation and simulation ofcutting-direction burr in orthogonal cutting[J]. Advanced Ma-terials Research,2007,24-25:249～254
[7]	Qu H J,Wang G C,Zhu Y M,et al. Formation and simulationof two side direction burr in orthogonal cutting[J]. AdvancedMaterials Research,2008,53-54:77～84
[8]	杨继昌等. 低速正交金属切削中工件表层加工硬化深度的预报[J]. 应用科学学报,1995,13(3):363～368
[9]	李宝德. 金属切削中工件表层加工硬化模拟[J]. 工具技术,2004,(4):14～16
[10]	黄俊,王树林,刘旭等. 切削制备纳米材料过程的应变与温度预测[J]. 机床与液压,2010,38(5):9～11
[11]	吴春凌,叶邦彦. 制造纳米材料的新方法-切削[J]. 科学技术与工程,2009,19:5783～5887
[12]	赵祖德,姚良均,彭如清. 铜及铜合金材料手册[M]. 北京:科学技术出版社,1993
[13]	Cockroft M G. Determination of workpiece flow stress and friction atchip-tool contact for high-speed cutting[J]. International Journalof Machine Tools & Manufacture,2000,40(1):133～152
[14]	Zorev N N. Inter-relationship between shear processes occurringalong tool face and shear plane in metal cutting proceedings of in-ternational research in production engineering[A]. Internation-al Research in Production Engineering ASME[C],NewYork,1963