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| I have some 1" plate and some 4"x6"x 1/4". The 1" plate will be laying flat and the 4x6 will be setting vertically on top of it (one open end of the tube will be covered by the plate).
My understanding is that if you weld these two pieces together, the 1" plate will cool down very fast after you're done welding and weaken the weld. To prevent this you should pre-heat the 1" stuff. How hot should I get it. I can measure the temp with an infra-red gun. Thanks. | |
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Pre-heating thick metal before welding
