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  1. daschell

    Manufacturing procedures of a 17-4 PH part

    With decades of experience machining 17-4 I will say from a machining stand point either option 1 (purchase material in the "A" condition and age to 1025 after machining) will work. Heat Treating after machining must be done in an inert atmosphere and the part will grow some .0002 0r .0003 per...
  2. daschell

    Machining causing 316 SS to anneal???

    Thanks for the replies. They pretty much verified what I was thinking. We started with .0469 material. It was not strong enough to push through the guide bushing. Funny thing is I purchased 316 1/8 bar from MSC and ran a few hundred parts. They were perfect. I can not be sure but I'll bet it was...
  3. daschell

    Machining causing 316 SS to anneal???

    The customer states that the pins as recieved are not "springing back" like they used to. I am alittle suspect as to the "annealing" from cutting as based on my 35 years of experience the 300 seris stainless work harden when machined. Although we have noticed that these parts seem to be...
  4. daschell

    Machining causing 316 SS to anneal???

    I have been tasked to machine .009Ø pins 2" long for a customer. Using a CNC screw machine we are succesful at turning the parts from 1/8 bar. Here is the rub. My customer now says the machining is "annealing" the 316 CRES. Is this possible? If so what are any ideas to mitigate, Re solution H/T...

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