Study on the Limit and Mechanism of Carbon Fiber/Aluminum Alloy Laminates for Automotive with Elastic Mold Plasticizing Forming
In order to solve the problems of poor deformation coordination of heterogeneous materials and low plastic forming limit of heterogeneous materials in the traditional forming process of automotive carbon fiber/aluminum alloy laminates,a method of elastic mold plastic forming for carbon fiber metal laminates is proposed.Combined with theoretical analysis,finite element simulation,experiments and other means,the deformation behavior and forming limit of carbon fiber metal laminates in the plastic forming process of elastic mold were studied.The experimental results show that the elastic mold can significantly improve the forming performance of carbon fiber metal laminates,and as the hardness of the elastic mold increases,both the forming limit displacement and the load-bearing limit of the laminates are improved.When the hardness of the elastic mold reaches HS90A,compared with the traditional non-elastic mold forming,the forming limit displacement of the laminates can be increased by 30.6%and the load-bearing limit can be increased by 21.8%.
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