NDLI: Warpage optimization of fiber-reinforced composite injection molding by combining back propagation neural network and genetic algorithm

Content Provider	Springer Nature Link
Author	Li, Kun Yan, Shilin Pan, Wenfeng Zhao, Gang
Copyright Year	2016
Abstract	Warpage is an important index in measuring part quality in the short fiber-reinforced composite injection molding process. In addition to process parameters, fiber parameters have an important influence on part warpage. In this study, the objective function is a minimum problem of the warpage. The design parameters include fiber aspect ratio, fiber content, injection time, melt temperature, mold temperature, and holding pressure. The combined back propagation neural network (BPNN) and genetic algorithm (GA) approach is proposed to optimize the fiber-reinforced composite injection molding process. On the basis of orthogonal experiment design, Moldflow software is applied in the short fiber-reinforced composite injection molding process. The importance of various parameters on the influence of warpage is researched by the range analysis method. Thereafter, a back propagation neural network model is developed on the basis of the simulation results to map the complex nonlinear relationship between design parameters and warpage. The GA is interfaced with this predictive model to improve the warpage significantly by optimizing the design parameters. A case study of a part is presented. The optimum values of design parameters are determined to minimize the warpage. Results show that the combined BPNN/GA approach is an effective method for the warpage optimization of fiber-reinforced composite injection molding.
Starting Page	963
Ending Page	970
Page Count	8
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	90
Issue Number	1-4
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2016-09-15
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Injection molding Warpage optimization Orthogonal experiment design Back propagation neural network Genetic algorithm Industrial and Production Engineering Media Management Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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