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  • Users: YCENG
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  1. YCENG

    BEST METHOD FOR SMALL, TIGHT TOLERANCE, HOLES

    I need to make two .0275" holes in a .120" thick plate, with a hole diameter and centerline tolerance of +/- .00005", or better. I was thinking of making the plate of either carbide or 440C 54-56RC. Is jig grinding the best method for making these holes? Is one material better than the other...
  2. YCENG

    BEST METHOD FOR SMALL, TIGHT TOLERANCE, HOLES

    Chris, I am having these parts made outside. Typically I would send these off to an EDM shop, but I'm thinking EDM might not be the best process for getting small, tight tolerance holes.
  3. YCENG

    BEST METHOD FOR SMALL, TIGHT TOLERANCE, HOLES

    I need to make two .0275" holes in a .120" thick plate, with a hole diameter and centerline tolerance of +/- .00005", or better. I was thinking of making the plate of either carbide or 440C 54-56RC. Is jig grinding the best method for making these holes? Is one material better than the other...

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