Molding and Casting Services

Product Study: Undercuts in Injection Molding

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Product Study: Undercuts in Injection Molding

Content Summary

The Challenge: Avoid Unnecessary Costs and Complexity
Injected molded parts that have recessed features called undercuts are more difficult to eject during manufacturing. This adds costs and complexity to tooling, and undercuts that are too deep may be especially hard to remove. Yet, some product designs use undercuts for a fastening point or locating edge. Examples include the threads on injection-molded fasteners.

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