| 麻花钻加工20Cr的断屑仿真分析 |
| |
| 引用本文： | 陆忠民,汤忠芳,闫明鹏,邵华.麻花钻加工20Cr的断屑仿真分析[J].工具技术,2010,44(8):49-52. |
| |
| 作者姓名： | 陆忠民 汤忠芳 闫明鹏 邵华 |
| |
| 作者单位： | 1. 南车戚墅堰机车有限公司
2. 上海交通大学 |
| |
| 摘 要： | 利用有限元软件DEFORM-3D,对麻花钻钻削20Cr的断屑过程进行了仿真分析。根据塑性材料断裂强度理论,以切屑卷曲变形为断屑判据。通过模拟分析,得出了工件的等效应力、应变及其分布,以及工件上P点最大等效应变的变化规律,阐释了该点最大等效应变与切屑卷曲变形的正相关性。提出并验证了P点最大等效应变的峰值可作为麻花钻加工20Cr的断屑判据。
|
| 关 键 词： | 20Cr 麻花钻 断屑判据 仿真分析 最大等效应变 切屑卷曲变形 |
Simulation Analysis of Chip-breaking in Drilling 20Cr with Twist Drill |
| |
| Lu Zhongmin,Tang Zhongfang,Yan Mingpeng,Shao Hua.Simulation Analysis of Chip-breaking in Drilling 20Cr with Twist Drill[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),2010,44(8):49-52. |
| |
| Authors: | Lu Zhongmin Tang Zhongfang Yan Mingpeng Shao Hua |
| |
| Affiliation: | (Senior Engineer,CSR Qishuyan Locomotive Co.,Ltd.,Changzhou,Jiangsu 213011,China ) |
| |
| Abstract: | The simulation analysis of chip-breaking process in drilling 20Cr steel with twist drill was carried out by using finite element software DEFORM-3D. According to the fracture strength theory of plastic material,chip curl distortion was applied as the chip-breaking criterion. Through the simulation analysis,the workpiece＇s equivalent stress,strain and their distributions,as well as the change law of maximum equivalent strain of point P on the workpiece were obtained,the positive correlation of the maximum equivalent strain of point P with chip curl distortion was explained. It was suggested and validated that the peak value of maximum equivalent strain of point P can be used as the chip-breaking criterion during drilling 20Cr with twist drill. |
| |
| Keywords: | 20Cr |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
