Overmolding analysis

An Overmolding analysis is used to analyse two shot sequentially overmolded parts.

Overmolding analyses consist of a two step process, where a Fill+Pack analysis is performed on the first cavity (first component stage), and then a Fill+Pack analysis or a Fill+Pack+Warp analysis is performed on the overmolding cavity (overmolding stage). The overmolding stage on the second cavity uses a different material from the first component stage. As the temperature of the insert, injected in the first component stage, is not uniform, mold and melt temperatures used in the overmolding stage are initialized by the temperatures recorded at the end of the first component stage.

Note: It is assumed that the material injected in the the first component stage does not melt and flow when the second material is injected in the overmolding stage, even though the temperature does rise.

Tip: You may find it easier to model your part in two separate studies, one for the first component stage and one for the overmolding stage. You can then add these two stages together in one model.

Note: Warp analyses on overmolded components on 3D models which contain part inserts, take into account the influence of contact between the part inserts and the overmolded component.