Reverse Design of Complex Surface and Optimization of Mould and Injection Process
Guo Hengya, Li Jinliang, Hu Mengfei
Zhejiang Industry Polytechnic College, Shaoxing 312000, China
Abstract：Taking the upper shell product of dolphin massager as an example, the reverse design technology was introduced to obtain the point cloud data of the existing sample by 3D scanner. The point cloud was processed by using Imageware and Geomagic software and the curved surface was reconstructed. On this basis, the necessary innovation and redesign were carried out to obtain the 3D design drawing of the required product. The reverse design model was imported into the Moldflow analysis software Moldflow/MPI, and the gating system and cooling system were designed. Through the injection numerical simulation, the key injection process parameters were optimized by orthogonal experiment. A set of optimal process parameters were selected according to the warpage deformation of the product, and a corresponding mold was finally designed. The results show that this method can greatly save the development time of die, reduce the warpage deformation of complex curved surface products, and significantly improve the product quality.
Keywords：reverse design; surface reconstruction; moldflow analysis; warpage deformation
Guo Hengya，Li Jinliang，Hu Mengfei. Reverse design of complex surface and optimization of mould and injection process[J]. Engineering Plastics Application，2021，49(6)：113-117.