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  1. punches

    DRILLING CPM 10V

    HI TO ALL DRILLING EXPERTS DOES ANYONE HAVE ANY IDEA'S ON HOW TO DRILL THIS MATERIAL CPM 10V. BRINELL HARDNESS 255/270 RUN ON A CNC LATHE WITH A BAR FEEDER DRILL SIZES 9/64 .375 DEEP - 3/16 DRILL .250 DEEP ALSO REAM .152 LENGTH OF REAMER .125 THANKS TO ALL IN ADVANCE
  2. punches

    what type of grinding wheel

    Hi to all grinding people I need help on selecting a 12"x2"x5" surface grinding wheel to rough grind heat treated d2 tool steel (60/62 rc) that is 4.0 dia. x 1 3/4 thick with 1.500 i. d. We have a fine grit cbn wheel that we use rough and finish grind to get a #16 finish put it takes to long to...
  3. punches

    17-4 stainless

    hello need help on what kind of drill to use for drilling 17-4 stainless steel in the soft condition. also what speeds and feeds to use. .600 deep with .386 dia. drill with no coolant holes-will be bore after drilling. machined on newer mazak lathe. thanks in advance
  4. punches

    DRILLING E8740 STEEL

    HI CAN ANYONE GIVE ME ANY INFO ON HOW TO DRILL THIS TRIPLE ALLOY STEEL. HOLE SIZE .535 DIA. X .600 DEEP MACHINING WILL BE DONE ON NEWER CNC LATHE. THANKS TO EVERY ONE.

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