Additive friction stir deposition(AFSD)provides strong flexibility and better performance in component design,which is controlled by the process parameters.It is an essential and difficult task to tune those parameter...Additive friction stir deposition(AFSD)provides strong flexibility and better performance in component design,which is controlled by the process parameters.It is an essential and difficult task to tune those parameters.The recent exploration of machine learning(ML)exhibits great potential to obtain a suitable balance between productivity and set parameters.In this study,ML techniques,including support vector machine(SVM),random forest(RF)and artificial neural network(ANN),are applied to predict the mechanical properties of the AFSD-based AA6061 deposition.Expect for the stable parameters(temperature,force and torque)in situ monitored by the self-developed process-aware kit during the AFSD process and the other factors(rotation speed,traverse speed,feed rate and layer thickness)are also set as input variables.The output variables are microhardness and ultimate tensile strength(UTS).Prediction results show that the ANN model performs the best prediction accuracy with the highest R2(0.9998)and the lowest mean absolute error(MAE,0.0050)and root mean square error(RMSE,0.0063).Furthermore,analysis suggests that the feed rate(24.8%/24.1%)and layer thickness(25.6%/26.6%)indicate a higher contribution that affects the mechanical properties.展开更多
基金the support from the Science and Technology Development Fund(FDCT)of Macao SAR(File/Project No.0015/2021/AFJ and 0110/2023/AMJ)Innovation Support Plan,Hong Kong,Macao and Taiwan science and technology cooperation project of Jiangsu Province(BZ2022047)the Joint Fund of Basic and Applied Basic Research Fund of Guangdong Province(No.2021B1515130009).
文摘Additive friction stir deposition(AFSD)provides strong flexibility and better performance in component design,which is controlled by the process parameters.It is an essential and difficult task to tune those parameters.The recent exploration of machine learning(ML)exhibits great potential to obtain a suitable balance between productivity and set parameters.In this study,ML techniques,including support vector machine(SVM),random forest(RF)and artificial neural network(ANN),are applied to predict the mechanical properties of the AFSD-based AA6061 deposition.Expect for the stable parameters(temperature,force and torque)in situ monitored by the self-developed process-aware kit during the AFSD process and the other factors(rotation speed,traverse speed,feed rate and layer thickness)are also set as input variables.The output variables are microhardness and ultimate tensile strength(UTS).Prediction results show that the ANN model performs the best prediction accuracy with the highest R2(0.9998)and the lowest mean absolute error(MAE,0.0050)and root mean square error(RMSE,0.0063).Furthermore,analysis suggests that the feed rate(24.8%/24.1%)and layer thickness(25.6%/26.6%)indicate a higher contribution that affects the mechanical properties.
