Transactions of Materials and Heat Treatment

Title：Optimization on incremental forming process parameters based on staged perturbation particle swarm algorithm

Authors： Xu Wei Wan Yi Sha Xinmei

Unit： Sanjiang University Nanjing Xiaozhuang University

KeyWords： incremental forming smoothness thining rate intelligent neutral network staged perturbation particle swarm algorithm orthogonal experiment

ClassificationCode：TG386

year,vol(issue):pagenumber：2020,45(12):116-121

Abstract：

In order to decrease the thinning rate of incremental formed part and increase the smoothness of part, the optimization method of parameters based on staged perturbation particle swarm algorithm was proposed, and taking the thinning rate of incremental formed part as optimization object, four-factor and four-level orthogonal experiment was designed. Then, BP neutral network parameters were trained by the intelligent algorithm, and the fitting method based on intelligent neutral network was put forward. Taking the minimum mean and the standard deviation of thinning rate of part as object, the multi-object optimization model with restriction was built. Furthermore, introducing elite particle staged perturbation strategy to particle swarm algorithm, the diversity and convergence of algorithm were balanced, and the optimizing ability of algorithm was deepened so that the model solving method based on staged perturbation particle swarm algorithm was proposed. Finally, the incremental forming parameters of circular table with the forming angle of 37°were optimized, and the mean and the standard deviation of thinning rate for part optimized by the staged perturbation particle swarm were smaller than those by the particle swarm algorithm. Thus, the quality and smoothness of part were improved.

Funds：

江苏省高等学校自然科学研究项目（17KJB460011，19KJB460006）

徐伟（1982-），男，学士，高级实验师 E-mail：xwcontrol@163com 通讯作者：万轶（1982），女，博士，副教授 E-mail：379280626@163com

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