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  • Users: richjam
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  1. richjam

    edm aluminium pitting problems

    I have recently been edm machining a large aluminium mold tool. on clearing away edm deposits from the bottom of the cavity i have found lots ( about 30 ) small indentations with raised edges about 0.010" 0.25mm deep. They look as though a sharp object has been pushed into the surface I know...

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