模拟和实验研究磨料-工具相互作用在拖加工边缘准备的模拟和实验研究
Julong Yuan1,2, Yuhong Yan1,2, Youzhi Fu3,4
1College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China.
Micromachines
|October 29, 2025
概括
拖拉加工通过控制加工时间,速度和旋转方向来优化切割工具. 这种使用离散元件建模 (DEM) 模拟的方法通过磨损提高了工具性能和寿命.
科学领域:
- 材料科学与工程 材料科学与工程
- 机械工程 机械工程
- 部落学 (tribology) 是一个学科.
背景情况:
- 工具边缘的准备对于优化切削工具的性能和寿命至关重要.
- 拖拉加工是工具边缘准备的关键工程方法,利用行星运动在磨料中.
- 了解工艺参数对磨料介导工具磨损的影响,对于高效的边缘准备至关重要.
研究的目的:
- 开发和验证一个离散元件方法 (DEM) 模型,用于拖边缘准备.
- 调查加工时间,工具旋转速度和旋转方向对工具磨损的影响.
- 在边缘准备过程中预测和优化工具几何变化.
主要方法:
- 开发一个离散元件方法 (DEM) 模型用于拖拉加工.
- 通过实验性削切削边缘准备验证DEM模型.
- 在模拟和实验中,处理时间,工具旋转速度和旋转方向的系统变化.
主要成果:
- 增加的加工时间和工具旋转速度导致累积能量和工具磨损的逐渐增加.
- 旋转方向显著影响了工具磨损,反时钟方向 (CCW) 旋转导致的磨损小于时钟方向 (CW) 旋转.
- 实验结果证实,边缘半径随着处理时间和旋转速度的增加而增加,旋转方向影响了边缘形状因子K.
结论:
- 经过验证的DEM模型准确地预测了边缘准备参数对工具几何学的影响.
- 控制旋转速度是优化边缘准备效率的关键.
- 磨损磨损是主要的材料去除机制,可以使用旋转方向来实现对称的边缘准备.
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