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Undercuts can be defined as any protrusions, cavities, or recessed areas of a part that run parallel to a mold’s parting line. If undercuts are required for a particular part, it can complicate the injection molding ejection process, as the friction can interfere with the part’s separation from the cavity. Fortunately, if a part calls for undercuts, an expert injection molder will be able to apply additional tooling and engineering techniques to facilitate this separation.Let’s discuss some of the ways of achieving success with undercuts in injection molding.

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