Designer BLM

Boundary Layer Mesh (BLM) is one of the most suitable mesh technologies for CAE application of plastic injection molding. The BLM generator is available in Moldex3D Designer and the outputted 3D mesh is named as Designer BLM. The parameters for BLM like mesh size, boundary layer count and offset ratio are adjustable individually when it is necessary. The powerful meshing kernel allows users to apply different mesh types for different attribute such as cavity, part insert, runner, and cooling channel. The supported mesh types in Designer BLM are including Tetra and 1 ~ 5 Layers BLM. By default, the program will determine a proper mesh size for making surface mesh. A three-layer of prismatic meshes will be generated inward from the surface mesh and then filling up the remaining space with tetrahedral mesh. As result, the solid mesh has minimum seven layers across the thickness direction and can be increased up to 11 layers for higher accuracy requirements.

In application of multi-component molding (MCM), the solid mesh nodes on the contact face between part and part insert are allowed to be unmatched. Non-matching mesh topology is supported for all standard analysis items including flow, pack, cool and warp. Users can reduce effort and time in mesh preparation, and the result continuity cross non-matching mesh boundary will be handled by solvers automatically.