A brief introduction to principles of mold flow analysis and how to read mold flow analysis reports
Pre-processing in Moldflow Current mainstream mold flow analysis software is Moldflow, which only accepts triangular units and tetrahedral units. High-quality finite element mesh is guarantee of finite element analysis accuracy. For injection molded parts, there are three main mesh division methods in Moldflow: neutral surface, dual-face, and 3D entity. Part Neutral surface Dual-face 3D entity Division method Extract neutral surface of part, then divide mesh (triangular unit) on neutral surface Extract surface of part as core and cavity surface of mold, then divide mesh (triangular unit) Directly divide finite element mesh on 3D digital model. Advantages Fewer meshes, fast analysis speed, and high calculation efficiency No need to extract neutral surface, and post-processing is more realistic High calculation accuracy Disadvantages Difficult to extract the neutral surface and low analysis accuracy Meshes on upper and lower surfaces of part require a certain c...