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Title:Simulation on multi-step hole-flanging for air-conditioning fins
Authors: Guo Feipeng Li Dayong Tang Ding 
Unit: Shanghai Jiao Tong University 
KeyWords: air-conditioning fins  hole flanging  multi-step forming  friction coefficient thinning ratio 
ClassificationCode:TG386
year,vol(issue):pagenumber:2017,42(5):164-170
Abstract:
The air-conditioning fins produced by thin aluminum foils are prone to fracture at hole wall during the hole-flanging, and forming steps are confirmed by experience, so the process parameters are hard to adjust reasonably. Therefore, the process of hole-flanging was simulated by FEA, and the cause of fracture was analyzed. Then, a multi-step hole-flanging model was set up, and drawing, piercing-drawing and twice flanges were simulated. Next, a simulation result was contrasted with real fins and verified. At last, the influences of friction coefficient between die and sheet on multi-step hole-flanging were elaborated according to the simulation result. The result indicates that different friction coefficients can affect the thickness distribution, the maximum thinning ratio and forming quality in the hole-flanging process.
Funds:
国家科技支撑计划(2012BAF01B06)
AuthorIntro:
郭飞鹏(1990-),男,硕士研究生 李大永(1973-),男,博士,教授,博士生导师
Reference:


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