Multi-Material Overmolding Injection Process

You can inject two to six different polymer materials within the same cycle.

In the Study PropertyManager, under Injection Process, select Multi Material Overmolding. During a multi-material overmolding injection, separate injection nozzles introduce materials sequentially into the cavities.

This injection process is available only with the Solid analysis procedure and runs with the Flow+Pack analysis sequence. The Flow+Pack analysis sequence accurately simulates an actual multi-material overmolding injection process. The first material goes through a complete Filling, Packing, and Cooling cycle before the start of the injection of the second material.
For two-shot or multi-shot overmolding designs, you can use the Local Gravity boundary condition to specify the gravity direction for each cavity. This is useful in cases where various cavities have different orientations in a mold and the gravity direction changes for each cavity.