Prediction and control of surface roughness for the milling of Al/SiC metal matrix composites based on neural networks  

作　　者：Guo Zhou Chao Xu Yuan Ma Xiao-Hao Wang Ping-Fa Feng Min Zhang 

机构地区：[1]Tsinghua-Berkeley Shenzhen Institute,Tsinghua University,Shenzhen 518055,Guangdong,People's Republic of China [2]Shenzhen International Graduate School,Tsinghua University,Shenzhen 518055,Guangdong,People's Republic of China [3]Department of Mechanical Engineering,Tsinghua University,Beijing 100084.People's Republic of China

出　　处：《Advances in Manufacturing》2020年第4期486-507,共22页先进制造进展（英文版）

基　　金：This work was supported by the National High Technology Research and Development Plan of China(Grant No.2015AA043505);the Equipment Advanced Research Funds(Grant No.61402100401);the Equipment Advanced Research Key Laboratory Funds(Grant No.6142804180106);Shenzhen Fundamental Research Funds(Grant No.JCYJ20180508151910775).

摘　　要：In recent years,there has been a significant increase in the utilization of Al/SiC particulate composite materials in engineering fields,and the demand for accurate machining of such composite materials has grown accordingly.In this paper,a feed-forward multi-layered artificial neural network(ANN)roughness prediction model,using the Levenberg-Marquardt backpropagation training algorithm,is proposed to investigate the mathematical relationship between cutting parameters and average surface roughness during milling Al/SiC particulate composite materials.Milling experiments were conducted on a computer numerical control(C N C)milling machine with polycrystalline diamond(PCD)tools to acquire data for training the ANN roughness prediction model.Four cutting parameters were considered in these experiments:cutting speed,depth of cut,feed rate,and volume fraction of SiC.These parameters were also used as inputs for the ANN roughness prediction model.The output of the model was the average surface roughness of the machined workpiece.A successfully trained ANN roughness prediction model could predict the corresponding average surface roughness based on given cutting parameters,with a 2.08%mea n relative error.Moreover,a roughness control model that could accurately determine the corresponding cutting parameters for a specific desired roughness with a 2.91%mean relative error was developed based on the ANN roughness prediction model.Finally,a more reliable and readable analysis of the influence of each parameter on roughness or the interaction between different parameters was conducted with the help of the ANN prediction model.

关 键 词：Al/SiC metal matrix composite(MMC) Surface roughness PREDICTION Control Neural network 

分 类 号：TB33[一般工业技术—材料科学与工程]