Multi-objective optimizations of multidirectional forming mold based on fractional factorial design

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• 作者：Jianmin Yu ; Qiang Wang ; Zhimin Zhang…
• 关键词：Multidirectional forming ; Multi ; objective optimization ; Fractional factorial design ; RSM
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：88
• 期：1-4
• 页码：1151-1160
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design;
• 出版者：Springer London
• ISSN：1433-3015
• 卷排序：88

文摘

Taking an engine shell with branches as the research object, the response surface method and the fractional factorial design screening methods were carried out for optimization of multidirectional forming mold parameters. Selecting the flash quality of formed part and forming load act as the objective function, and the tooth surface mold parameters as design variables, establishing a second-order mathematical model. Using fractional factorial design screens effectively the design variables and their interactions. These design variables are impacted significantly factors. BOX-Behnken experimental design method optimized the design parameters (shell bottom taper α, the tooth length b, and branches mouth fillet R2), and have a second-order regression equation. Finally, an overlapping contour map of flash quality and load were drawn, which provide a wide range of values for the actual optimization design. We can predict the quality and the load under different conditions through the overlay contour map.