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  • Users: RvL04
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  1. RvL04

    Alloy 715 finish

    Hi; I have almost no experience with material finishes on metal. Our customer needs a finish of 125 microinches (or better) on Alloy 715. This is a 70-30 Copper-Nickel alloy. Does anyone know if that alloy can get that finish, and if so, by what method(s)? Finally, does anyone know any...
  2. RvL04

    Poisson's Ratio

    Hi! I'm pretty much new to metals. We had two materials that we had tested in a quasi-static tensile test. The axial strain results look fine, but the transverse strain results, I'm having some trouble interpreting. The first material decreased in thickness by 11% (before the test vs. after...
  3. RvL04

    305 Stainless Steel - or something like it...

    Hi; I need to have a part machined out of a steel that's close to 305 Stainless Steel. Our supplier tells me 305 is going to be really expensive (it's apparently not that common), but our customer wants something a lot like it. Now, I'm no chemist and don't work with metals a lot at all. Can...
  4. RvL04

    Measuring O-rings

    Hi! Does anybody have any experience measuring the (inner) diameter of rubber O-rings? What's the best method? I've read about cone gauges (both stepwise and smooth) and they look helpful, but I'm just wondering if I'm perhaps overlooking an obvious option. Currently, I'm just using calipers...

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