Abstract:
In metal product part manufacturing industry, deep drawing process has been widely employed in producing sheet metal parts, and their enormous volume is manufactured to guarantee the same dimensions and shapes. However, it is inevitable to see low quality products and problems such sa wrinkles and fractures during the manufacturing process, which lead to costly repairs. Nowadays, engieering programs are implemented to simulate problem solving methods, design a prototype, and find manufacturing variables to reduce time and cost. Therefore, this study employed a engineering simulation program to investigate the effects of die radius and blank holder force in deep drawing process of an aluminum A1100-H24 with diameter 310 mm and 2.2 mm thickness. The forming depth 80 mm by employed in the experimental with singls step deep drawing force. This study adopted non-linear finite element method to examine a proper blank holder force and die radius using a simulation program under the elasto-plastic with strain hardening. the results from both the experiment and engineering simulation showed that the proper blank holder force at 120-150kN with 2.8-3.5 mm die radius did not affect wrinkle and fracture of the model. It was also found that die radius had an effect on the flow of the metal during the deep drawing and blank holder force that helped control the metal flow to prevent the pan from having wrinkles and fractures.