针对奥贝球铁高速铣削力的表面粗糙度建模的实验研究

胡斌梁; 张朝星; 康辉民; 许功元; 刘艳余

doi:10.13433/j.cnki.1003-8728.2017.1119

针对奥贝球铁高速铣削力的表面粗糙度建模的实验研究

doi: 10.13433/j.cnki.1003-8728.2017.1119

胡斌梁^1,2,
张朝星^1,2,
康辉民^1,2,
许功元^1,2,
刘艳余^1,2

1.
湖南科技大学机电工程学院, 湖南湘潭 411201;
2.
湖南科技大学难加工材料高效精密加工湖南省重点实验室, 湖南湘潭 411201

基金项目:

国家自然科学基金项目（61272196）、湖南省教育厅重点项目（15A063）及湖南省青年基金项目（12B042）资助

详细信息

作者简介:
胡斌梁(1965-),教授,博士,研究方向为机械制造、图像处理等,593171566@qq.com

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出版历程
- 收稿日期: 2016-08-08
- 刊出日期: 2017-11-05

Correlation Model between Surface Roughness and Milling Force and Experiments for High Speed Milling of Austempered Ductile Iron

1.
College of Mechanical and Electrical Engineering, Hunan University of Science and Technology, Hunan Xiangtan 411201, China;
2.
Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material, Hunan University of Science and Technology, Hunan Xiangtan 411201, China

摘要

摘要: 奥贝球铁（ADI）作为一种综合性能优异的难加工工程材料，其高速铣削下的铣削力对工件表面粗糙度Ra有重要影响。为研究其内在关系，基于多因素正交回归实验建立铣削力和表面粗糙度模型的理论，结合奥贝球铁的材料力学性能，采用以主轴转速、每齿进给量、切削深度、切削宽度等为多因素，高速铣削力和表面粗糙度为因变量的正交试验方法，并通过最小二乘法建立关于Fx、Fy、Fz这3个铣削分力的Ra模型；然后分别检验了回归模型和回归系数的显著性，分析了所建模型的可信度及Fx、Fy、Fz分别对ADI表面粗糙度的影响程度；最后设计了相关实验对所建模型进行验证。实验结果表明：高速铣削分力对表面粗糙度影响程度次序：切向力 > 轴向力 > 径向力；模型验证实验说明了所建模型的可信性和正确性，从而可为ADI材料高速铣削加工提供了重要的理论支持和技术指导。
- 奥贝球铁 /
- 高速铣削力 /
- 表面粗糙度 /
- 正交回归实验 /
- 最小二乘法
Abstract: Austempered ductile iron(ADI) is a difficult machining material with excellent comprehensive properties, and its high speed milling force has an important influence on surface roughness of the work-piece. Based on the combined mechanical properties, the multi-factor orthogonal regression experiment theory is applied to establish the relationship between the milling force and the surface roughness. In the experiment, the spindle speed, feed per tooth rate, cutting depth and cutting width are regarded as the multi factors, and the milling force and surface roughness are regarded as the dependent variables. With the least squares method, a model of the milling force and the surface roughness about the three components(Fx,Fy,Fz) is established, and the significance of the regression model and its coefficient analysis are conducted to verify the model and the influence level of three components(Fx,Fy,Fz) of the milling force. Finally, some verification experiments are designed to check the effectiveness of the experimental model. The experimental results show that the influence order of the three force components on the surface roughness is in turn: tangential force, axial force, radial force. The verification experiments prove the credibility and validity of the model, and it will provide an important theoretical support and technical guidance in high-speed milling process of ADI.
- austempered ductile iron /
- high speed milling force /
- surface roughness /
- orthogonal regression experiment /
- least squares method

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