The Re-melt zone, overmolded components (overmolding) result shows places where the first component may not have completely frozen, or has re-melted, when the second component is injected.
- Overmolding Fill
You can control how re-melt zones are displayed by editing the plot properties.
Using this result
- may not have frozen completely
- has re-melted
Re-melting occurs when the first component has not cooled enough before the second component is injected, or when the melt temperature of the second component is sufficient to heat the material in the first component above its transition temperature. This result tells you where, on the boundary between the first and second components, re-melting is likely to occur.
Re-melting of a thin skin increases structural strength between the components. However, it is generally undesirable because it causes unpredictable changes to the properties of the first component, such as its exact shape or optical properties.
Things to look for
- Increase the cycle time, particularly between injection of the first and second components.
- Decrease the injection temperature of the material in the second component.
- Change the material for either component.
- Move the second injection location to be further away from the components' boundary.