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  1. Joselito

    Aluminum Welding Question

    I have a piece of round stock 6061 T6 Aluminum, 3/8" in diameter. I am going to cut the round stock into inch long segments at a 45 deg. angle. I want to weld the inch long segments along the 45 cuts such that the two pieces form an "L". What type of geometry weld should I use...
  2. Joselito

    L channel corner weld

    I have sheets of 0.080 inch aluminum - approximately 8 inches wide and 150 inches long. I want to make an L-channel from two of these sheets. The L-channel will be standing with it's 150 inch axis normal to the ground. The corner weld will be under a light load. Approximately 4 pounds...
  3. Joselito

    Applicable welding methods

    Hi, I'm interested in welding several components to a thin (0.04 inch - 0.06 inch) sheet of 6061 aluminum. The components are cut from a 1/4 inch plate of the same grade. They will be welded such that the 1/4 inch face of the plate is butted up against the thin sheet and joined with a fillet...
  4. Joselito

    Minimum Bend Radius - Sheet Metal

    Thanks everyone. Very useful info. FYI: The sheet thickness will be in a range of 0.06" to 0.09". The inner radius can be as large as 0.25". The reason for the cap on bend radius is that clearance is very limited where the sheet will be used. This particular aluminum alloy...
  5. Joselito

    Minimum Bend Radius - Sheet Metal

    I'm interested in bending a piece of sheet metal to a specific radius. In one case the sheet will be formed from 6092 aluminum. In another case the sheet will be formed from 304 stainless steel. I need to be able to bend these sheets without cracking the outer surface of the bend. However...
  6. Joselito

    Deflection of Plastically deformed Cantilever beam

    SANCAT, Thanks for your reply. Lots of bent paper clips seem to support your conclusion. I appreciate it. Jose
  7. Joselito

    Deflection of Plastically deformed Cantilever beam

    Picture a steel plate (24" x 4" x 0.25") clamped to a table such that the plate is cantilevered out away from the table by 22". Apply a load at the tip of the plate, normal to a surface, large enough to plastically deform the plate and permanently deflect the tip of the...
  8. Joselito

    Annular Snap Fasteners and the Like

    Trihydrate, Very good idea. The problem calls for a method of attachment with the ability to be applied remotely, that offers a force greater than 500 lb, and which is not a permanent(i.e. nut/bolt) attachment. All of these are satisfied very well by a vacuum. However, these plates will be...
  9. Joselito

    Annular Snap Fasteners and the Like

    Hi StressRiser: Here are a couple of things I left out: -The two plates are aluminum -One of the plates is part of a permanent structure(the same plate whose back face is not accessible). -a 500 lb separation load is necessary (If snap fits or magnets are being considered) ...and the fact...
  10. Joselito

    Annular Snap Fasteners and the Like

    Greetings: Description: Two 1" thick square plates, 8" on each side must be attached to one another temporarily. The attachment will be conducted remotely and from only one side of the attachment(that is, when the two plates are bonding or have bonded, only the top face of one of...
  11. Joselito

    Joselito

    I have an interesting problem. I am doing work with boral, which is a sandwich material composed of a sintered layer of aluminum and Boron Carbide with a thin layer of aluminum attached on the top and bottom surfaces by hot rolling. The test coupons being used are allowed to soak in baths of...
  12. Joselito

    Static coefficient of Friction for Annodized surface

    I was curious if anyone had information regarding the static frictional coefficient which exists between a stainless steel (304 stainless) and an anodized aluminum surface (6092) or new of a good reference I could look in. Also, how will these two surfaces react with one another? Thanks alot.
  13. Joselito

    Question on the applicability of bent beam equation

    Thanks for the input. Everything was very useful Butelja:When you say replace the quantity EI, do you mean in the moment-curvature relation, or one of it's derivatives/integrals. I don't really have much info pertaining to specifically to bent sections. I think I'm missing the point of...
  14. Joselito

    Question on the applicability of bent beam equation

    I have a section of L-shaped angle aluminum with six inch side walls and a thickness of 0.05 inches. The length of the section is variable, but I have been using 10 inches, just to choose something. The arms of the angle aluminum are oriented such that the angle between them is slightly...
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