| 超声切削加工中的动压油膜模型建立及其试验研究 |
| |
| 引用本文： | 皮钧,徐西鹏.超声切削加工中的动压油膜模型建立及其试验研究[J].机械工程学报,2010,46(7). |
| |
| 作者姓名： | 皮钧 徐西鹏 |
| |
| 作者单位： | 1. 华侨大学机电及自动化学院,厦门,361021;集美大学机械工程学院,厦门,361021
2. 华侨大学机电及自动化学院,厦门,361021 |
| |
| 基金项目： | 福建省科技计划资助项目(2005I031) |
| |
| 摘 要： | 根据超声切削过程的运动特性和冷却液作用特征,基于流体动压理论,建立刀具与工件之间动压油膜的模型。分析前刀面油膜压力的变化规律、分布状态和试验的工艺效果,证明超声切削过程可以产生高冲击动压的油膜,油膜压力的作用可使切屑产生弹性变形甚至是挤压变形和剪切滑移。超声振动切削过程会形成油膜作用和刀具接触切削两个阶段,油膜的作用可以增大剪切角,使刀具锐化并改变刀具前刀面与切屑的接触状态,提高加工的表面质量。讨论了油膜状态和切削液粘度对加工效果的影响。
|
| 关 键 词： | 超声振动切削 动压油膜 剪切角 切屑 |
Hydrodynamic Pressure Oil Film Modeling and Experimental Study of Ultrasonic Vibration Cutting |
| |
| PI Jun,XU Xipeng.Hydrodynamic Pressure Oil Film Modeling and Experimental Study of Ultrasonic Vibration Cutting[J].Chinese Journal of Mechanical Engineering,2010,46(7). |
| |
| Authors: | PI Jun XU Xipeng |
| |
| Affiliation: | 1.College of Mechanical Engineering and Automation/a>;Huaqiao University/a>;Xiamen 361021/a>;2.College of Mechanical Engineering/a>;Jimei University/a>;Xiamen 361021 |
| |
| Abstract: | On the basis of kinetic characteristic of ultrasonic vibration cutting and the action feature of coolant,the model of hydrodynamic pressure oil film between tool and workpiece is built on the basis of hydrodynamic pressure theory.Through analyzing the variation regularity and distribution state of hydrodynamic oil film pressure on rake face and the process effect of machining experiment,it is proved that high hydrodynamic pressure oil film can be produced in ultrasonic vibration cutting.And the chip can be ... |
| |
| Keywords: | Ultrasonic vibration cutting Hydrodynamic pressure oil film Shear angle Chip |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
