切削加工表面粗糙度影响因素及预测建模综述

表面粗糙度对零件的使用寿命有很大影响,正确、合理地选用表面粗糙度数值,可以减少零件的加工费用,提高零件的使用寿命。对表面粗糙度的评定参数及测量方法进行了介绍,重点阐述了表面粗糙度的产生机制和切削参数对表面粗糙度的影响;从回归分析法、响应曲面法和神经网络建模方法3个方面综述了表面粗糙度预测与建模的研究进展。指出用多参数表征表面粗糙度和建立加工表面粗糙度的预测、优化和工艺工况为一体的综合预测模型是未来发展方向。

Review on the Influence Factors and Predictive Modeling of Surface Roughness in Machining

The surface roughness has a great influence on the service life of the parts.The correct and reasonable choice of surface roughness value can reduce the processing cost of the parts and improve the service life of parts.The evaluation parameters and measurement methods of surface roughness were introduced.The mechanism of surface roughness and the effect of cutting parameters on surface roughness were emphatically described.The advances in surface roughness prediction and modeling were reviewed from regression analysis,response surface method and neural network modeling.It was pointed out that the future development direction was to characterize the surface roughness with multiple parameters and to establish a comprehensive prediction model integrating the surface roughness prediction and optimization and process conditions.