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Recent content by Goahead

  1. Goahead

    EEMUA 158

    You may try to use the Weld Calculator http://www.millerwelds.com/resources/calculators/mig_solid_amperage_calculator.php http://www.welding-advisers.com/
  2. Goahead

    Surface Hardening

    Search http://www.asminternational.org for the book Surface Hardening of Steels: Understanding the Basics Editor(s): J.R. Davis http://www.welding-advisers.com/
  3. Goahead

    API 6A - Wrought materials - Forgings

    For basic information anybody can search the web. Anyhow wrought means material which underwent plastic deformation (like rolling) at elevated temperature if in thick section. Thin sections can be worked cold. Forging material means raw material intended to be shaped by forging processes, either...
  4. Goahead

    Aluminium staining

    Cleaning fluids should not cause any reaction. To understand what the stains are you would need a localized microscopic analysis performed by a knowledgeable and well equipped laboratory. http://www.welding-advisers.com/
  5. Goahead

    ASME Tubesheet WPS/PQR template

    You can possibly inquire with AWS http://www.aws.org/w/a/technical/swps.html if the Standard WPSs they produce cover your requirements. http://www.welding-advisers.com/
  6. Goahead

    Aluminium staining

    Maybe the photo does not represent the surface blemishes correctly, but it seems likely that some sort of inclusions became embedded on it. Does this make sense with the processes? http://www.welding-advisers.com/
  7. Goahead

    WMHAZ vs. weld beads

    I don't think that trying to answer an unclear question is a useful exercise. Anyway, assuming that WMHAZ means indeed "Weld Metal Heat Affected Zone" as suggested, one could say that the number of retempered weld beads is indeed the number of beads minus one, as the HAZ of the last bead would...
  8. Goahead

    Need Material for Hardened Pins

    Hello, May I express the doubt that "the cheapest material" would not be the most fortunate qualifier for your project? Until you sum up all expenses (procuring, delivering, receiving inspection, handling, heading, cutting, deburring, heat treating, descaling, finishing, packaging, storing and...
  9. Goahead

    shock test failed as may material too strong

    You could install an overload safety device or a mechanical torque limiter, provided you can calculate the maximum admissible torque. http://www.welding-advisers.com/
  10. Goahead

    Magnetic anneal of FeCo parts manufactured by sintering powders

    A web search for magnetic annealing lists companies specializing in this process. http://www.welding-advisers.com/
  11. Goahead

    Number of times of weld repairs (Rework)

    I reported in my periodic newsletter PWL#103 the results of a study published in the February 2012 Issue of the Welding Journal at page 25 that addressed the problem, by testing repeated welding in a set of plates. http://www.welding-advisers.com/
  12. Goahead

    Hydrogen and methane bake-out

    Hydrogen bake out is specified for hard steels (~43 HRC) susceptible to embrittlement. The specified temperature should not exceed that of tempering (otherwise a reduction of hardness will ensue). http://www.welding-advisers.com/
  13. Goahead

    welding machine types

    You could perform a web search for welding power source and then dig deeper in manufacturers sites. http://www.welding-advisers.com/
  14. Goahead

    AFNOR steel designation system explanation

    AFNOR used to have a set of rules determining the designation of steels whereby the first figures expressed 100 times the carbon content, then the letters showed the main alloying elements (C for Cr, N for Ni, D for Mo etc.) and the following figure expressed 4 times the percentage content of...
  15. Goahead

    Bending Reinforcement bars

    You may wish to see (no promotion intended) http://www.arcreo.com.au/bending-reinforcement-shape Hoping this helps, http://www.welding-advisers.com/
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