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Posted: 10/12/2005 5:19:42 PM EDT
I'm just about ready to weld in the lower rails. I don't have access to a "spot" welder, so I thought about doing "rosette" welds with a MIG. Anybody do this or will it get too hot? I might be able to get a friend of a friend to TIG weld them in, but the MIG is more readily available to me, and I'm doing quite a bit of bending these days!
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Why would you drill through the rail also? Before I bought a spot welder, I used to rosette weld my rails in. I drilled a 3/16" hole through the receiver, but left the rails intact. |
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I use a slightly different technique. I take sharpie and draw the shape of the rail, then drill some 1/4" holes through the receiver, debur, then I have a mini C-clamp. I use the axis hole and center support and a "correct size" drill bit to space the rail. then rossetta weld. Also, what I did last time, was preheat the rail with a torch, to almost red, then rossetta weld. no problems with weld not sticking to rail that way. I had done a couple without preheating the rail, and the weld broke quite easily. when you preheat, the weld ends up being flatter, and with 8620 , you are supposed to preheat it for welding. (the old flats that scott used to sell) edit: I preheat only the hole I am about to weld, then cool with a damp towel. |
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