The study focuses on the mold and manufacturing process of aluminum alloy spare parts “airliner wing’s fairing cover” for aircraft manufacture industry. Superplastic forming manufacturing process usually using aluminum alloy plate and the molding contour is designed by low aspect-ratio. In this study, the airliner wing’s fairing cover molding contour is designed by high aspect-ratio. The aluminum alloy plates can’t be directly used for superplastic forming process. In order to improve the design of high aspect ratio, the SP5083 sheets bended for a preforming before superplastic forming process. The bending preforming in order to reduce the forming distance between SP5083 sheet and mold, then the spare parts fairing cover can be successfully produced. And there are several designs to reduce the forming distance manufacturing process, such as Two-Stage Superplastic Forming and Hot Draw Mechanical Preforming, etc. Because of large-sized mold and the experments need to comsume large cost, such as electricity bill and aluminum sheet meterials, etc. And the experiment coordinate with AIDC production line free time. So the experiment have restriction on the number. In order to reduce costs and increase the efficiency of the experiment. In this study, the mold is designed a small-sized model. And the mold contour also is designed, different model such as Two-cavity designed have same depth, enlarge the bottom of the V-shape preforming curvature radius, bottom of the V-shape preforming designed lower, etc. Analyzing the merits of the manufacturing process and mold design and choosing the best mold and manufacturing process.
