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  • Users: chiph
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  1. chiph

    Internal threading problems

    Hello, I have a problem where I have to cut a 48mm internal R.H. thread into a blind hole @ 3 inches deep. I propose to cut the thread in reverse with a left hand boring bar and feed out of the hole. I have enough room to relieve the bore at the bottom of the hole and I think it will be easier...
  2. chiph

    Machining effects on Y and T of 1144

    How will the yield and tensile strength of a 3" round bar of "Stressproof" 1144 [ASTM A311 CL B] be compromised by turning the O.D. to 2"? Thanks in advance. chip
  3. chiph

    looking for equivalent to Rycut 40AX

    anyone have a supplier for chromoly steel bar which is similar to rycut40ax? T @ 103ksi, Y @93, E @ 19%, machinability @ 100. thanks, chip
  4. chiph

    certification requirements for D17.1 or 1595 ?

    i'm just looking for some general procedural information on MIL-STD-1595 [AMS-STD-1595] or, even AWS D17.1 for 4130. such as diameter and wall thickness limitations and other requirements. thanks, chip
  5. chiph

    chipbreaker for turning pvc?

    does anyone know of an effective chipbreaker for turning pvc? the swarf is driving me crazy! thanks, chip.

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