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Prototype MIM Case Study – Lock Pawl

Prototype MIM Case Study – Lock Pawl. Application : Remote electronic locking system Competing Technology – Plastic (MIM was desired by customer marketing for higher strength at higher temperatures) Materia l – MIM 316L, part weight 0.8 grams. MIM Case Study – Lock Pawl.

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Prototype MIM Case Study – Lock Pawl

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  1. Prototype MIM Case Study – Lock Pawl Application: Remote electronic locking system Competing Technology – Plastic (MIM was desired by customer marketing for higher strength at higher temperatures) Material – MIM 316L, part weight 0.8 grams

  2. MIM Case Study – Lock Pawl Straightforward design, no features created by slides. Customer desired low cost prototype, how to do it?

  3. MIM Case Study – Lock Pawl For prototyping, create a square pocket in an existing mold base to fit a hand-load insert for prototyping. Tooling approach suitable for low-volume usage only.

  4. MIM Case Study – Lock Pawl Part features as they will be tooled in production can be created in the blocks. Non-traditional materials (low carbon steel, brass, aluminum) are all possible tool materials since only low volumes will be produced.

  5. MIM Case Study – Lock Pawl No ejectors make tooling simpler. Gate run to the center of the block, then dropped to customer requested location.

  6. MIM Case Study – Lock Pawl Part is easily accessible after separating the cavity halves, making for easy part removal.

  7. Lock Pawl Conclusion • Prototyping approach a success • Leadtime to tooling was short & relatively inexpensive • The prototypes were created almost exactly the same way the production parts will be produced • Parts passed testing with no issues

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