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Recent content by Steelforbrains

  1. Steelforbrains

    Washers?

    Forget my last post. Thank you UcfSE that is exactly what I am looking for. I checked Fastenal, but I wasn't sure what I was looking for.
  2. Steelforbrains

    Washers?

    No, they are not spherical washers or beveled washers. They would best be described as half-moon washers. Where can I find them for 1" threaded rod?
  3. Steelforbrains

    Washers?

    I am looking for a certain type of washer, but I do not know what it is called. Our building has I-beam columns and between the columns there is cross-bracing. The cross bracing consists of tension only threaded rods. The threaded rods go through a punched hole in the I beams web and are...
  4. Steelforbrains

    Dust sucker

    Thank you gr2vessels. Is there any way that I can determine the vacuum pressure based on the theoretical CFM's and HP of the blower? I pulled out my old fluid mechanics books but they were a little too dusty to read.
  5. Steelforbrains

    Dust sucker

    My company has been asked to quote building some portable dust collectors, which we have never made. The customer wants us to quote providing the frame and tank. They are providing the blower. These are the specs that they would like to have: 1300 CFM 5 HP blower 24" diameter tank to house 3...
  6. Steelforbrains

    Welding in heat treat area...

    They are having a lot of problems with the frames warping and welds cracking. The frames are completely welded and have a lot of tubing spreaders welded in but no diagonal bracing. I think that they need to utilize more bolted connections and have some expansion joints so that the steel is...
  7. Steelforbrains

    Welding in heat treat area...

    We have a customer that wants us to fabricate some racks to hold aluminum wheels. The wheels are passing through heat treatment on these racks. They pass through an ovem at 1050F for 2 1/2 hours. They then go through a water quench with the water at 90F. The racks are roughly 6'x8'x8'. The...
  8. Steelforbrains

    Corten vs A572

    We recently designed a piece of equipment using A572 Gr 50 steel. During fabrication this material was substituted with CORTEN A588. Is there any downfalls to using this material over the A572?
  9. Steelforbrains

    Material Determination

    How much would a portable optical emission spectrometer cost and/or how much would it cost to have someone test material using one?
  10. Steelforbrains

    To rout or not to rout...

    berkshire, That is almost identical to the beveler that I was looking at from Heck Industries. It doesn't look like you can do an inside radius though. Is there an attachment that you can buy to do an inside radius?
  11. Steelforbrains

    To rout or not to rout...

    Heck Industries makes a beveler that will bevel 45 deg. angles 7/8" deep (which is what I need). The beveler just rests on the plate (it is not self feeding). They have a demonstration video on their website and it appears that it cuts rather easily. It is basically a 1 HP motor with a...
  12. Steelforbrains

    To rout or not to rout...

    I have seen several that are variable speed and range from 8000 rpm to 25000 rpm.
  13. Steelforbrains

    To rout or not to rout...

    Has anyone ever tried using a standard woodworking router for doing weld preparation? I have looked at some of the bevelers on the market and some of them just seem like overpriced routers. One of the bevelers that I found had a 1 hp motor and had the perfect depth of cut for what I was trying...
  14. Steelforbrains

    Welding A572 Gr 50

    We are welding 3 rings together. One ring is a 1"x8" flat bar rolled the easy way to an 82 3/4" ID. The other two rings are 1"x5" flat bar rolled to a 82 3/4" OD. The rings are to be welding into a c channel shape with a full penetration single V-groove corner joint on each end of the 8"...
  15. Steelforbrains

    Pedestrian comfort?

    Swearingen, The ASD manual assumes a simply supported beam. It gives a deflection of 0.195" at 24" and 0.462" at 30". I get the same results as you when I model the plate as a beam fixed on the ends. I suspect however that the deflection will be even lower than the values you give. The plate...

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