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  • Users: pdizon
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  1. pdizon

    applying e-less nickel with or without initial base metal plating?

    From what I understand, I can get the plating thickness for electroless nickel down to .0005 inches. I am planning on plating a machined aluminum part. However, I've been told that I have to initially plate the part with a base metal, such as copper, before I can apply the nickel. Is that...
  2. pdizon

    Use of "O-Ring" as a spring

    Hello, I am evaluating a design that uses a silicone o-ring as a bumper. The o-ring has a 2 mm diameter and compresses 30% to 50% under load. Can anyone tell me if 50% compression will cause any problems such as a permanent set in this type of material? Advice is appreciated. Thanks.
  3. pdizon

    Realistic Tolerances for Molded Plastic Parts

    Hello, I am checking tolerances on plastic and elastomeric parts. Is +/-.004 inches a REALISTIC tolerance for molded silicone? The mold can easily be machined to those tolerances, but what can I expect for the final product? Also, can I also hold those tolerances for molded thermoplastic...

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