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I need to do some crack repair work on some 5052H32 Aluminum. They are ramps for a back of a flatbed trailer. The ramps are used to drive the tractor up onto the trailer. The ramps pretty much consist of a channel shaped runner the length of the ramp on each side. Between the two channels, angle iron shaped alum is used as cross pieces between the two channels. The wheels of the tractor drive beteen the channels, on the anle iron looking horizontal pieces, that are spaced about 9" apart. Anyway, the factory welds are cracking alongside the weld. I'm figuring on repairing them, but have been getting mixed replys on what filler to use. 4043 and 5356 are really the two I've ever used. I've used 5356 w/ T6061 before, and had good results w/o cracks. I felt lucky. The thickness of the ramps are 1/4 and 3/8 in thickness. My game plan is to groove out the cracks, maybe drill a hole at end of crack, preheat, and weld. Not sure if I'll mig or Tig it. I'm kinda leaning towards Mig though. I don't do much aluminum welding, so I'm all ears for suggestions. Also, what filler should be used?
Reply:??? 4043 40k psi about?? 5356 53k psi about alum 50 series try 5356 might as well seems kind light weight ramps for a tractor unless it's a yard tractoridealarc 250/250 ac-dc tigidealarc 250/250 ac-dc tig #2 used for sticklincoln sp100hh125dual arbor grinder polisher30 yrs of hand tools52 pitch blocks 6p-26prake gauge -pitch gaugeG&D prop repair 918-207-6938Hulbert,okla 74441
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Reply:5052 can be welded with either 5356 or 4043 filler. 5356 is the usual 'preferred' or first-choice filler, but 4043 is acceptable as well. Within the limits /caveats of the fillers (anodizing and service temperature limits primarily).But if the original welds are cracking on some aluminum ramps used for driving a tractor onto a trailer (tractor as in small Kubota or a 'mini' John Deere type, or tractor as in a 100+ HP agricultural tractor?) I'd really be questioning the strength of the original design and materials. Cause 1/4 inch aluminum angle really doesn't seem adequate for driving a tractor onto (small lawn tractor of maybe 500 lbs or so excepted, no WAY would I think 1/4 aluminum angle is adequate for a 5000+ lb 'small' tractor and no way in H#LL does that material sound adequate for ramps for an ag tractor. The best laid schemes ... Gang oft agley ...
Reply:Originally Posted by 123weldBetween the two channels, angle iron shaped alum is used as cross pieces between the two channels. The wheels of the tractor drive between the channels, on the angle iron looking horizontal pieces, that are spaced about 9" apart. Anyway, the factory welds are cracking alongside the weld. |
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发表于 2021-9-1 00:10:27