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Recent content by mikemetal

  1. mikemetal

    Welding 316L to 13Cr - Use 316L wire?

    309 is the magic bullet for carbon-ss, and different types of ss-ss and so on. also 312 can be used if i'm not mistaken. its even higher alloyed and almost a ni/cr super alloy. In some cases at the very borders, when welding, you will have aggregates of high carbon-low carbon and high cr-low cr...
  2. mikemetal

    Expanding Ti with heat to fit things inside

    Yeah I like bondhus tools. I'd say they make the best quality hex wrenches period. I guess the german brands make just as nice/good hex wrenches (now). I ordered bondhus ball-end hex "screwdrivers", since i knew they are the top quality brand for hex shaped tools. Also pretty much the only...
  3. mikemetal

    Expanding Ti with heat to fit things inside

    Hello again guys. yes obviously you are all right about just buying better tools, like WERA, WIHA, FELO, GEDORE and so on, and I actually have done that now :) the thing with these small tools is first the heat treatment, (and steel selection) of the actual tool tips (and I assume this the...
  4. mikemetal

    Expanding Ti with heat to fit things inside

    e4d stainless. steel fells a whole lot different if you actually have it in your hand, compared to 6al4v. its both heavier and there are other mechanisms at work too. I was expecting to get flak from thbis selection though. All I can say is this: i haver table wear made of 6al4v and sometime i...
  5. mikemetal

    Expanding Ti with heat to fit things inside

    Well i'm trying to go even more basic than that. I'll just turn the handle to spec (od) then make serrations of half of it then turn it around and make the hole. and then shrink the steel in there / heat the ti so it fits. what could be more simple than that?? I just want to know my drilling...
  6. mikemetal

    Expanding Ti with heat to fit things inside

    Hi I'm coming from the machining/wrenching/heavy industrial area. Really I'm a machinist with some knowledge of heat treating mainly martensitic steels (I have read a few books). Anyway my situatiuon is this: My father is into rc helicopters. He crashes these a lot. Most of the fasteners on...
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