nick205
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| posted on 21/6/13 at 11:10 AM |
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Welding plated bolts?
I need to weld some standard BZP bolts onto my kart chassis to mount the brakes.
Do I need to grind off the zinc plating before welding?
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Aaron_n_Sim
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| posted on 21/6/13 at 11:16 AM |
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I normally do, it's worth cleaning up anything your going to weld even it looks clean!
Aaron
Work to Live don't Live to Work
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tegwin
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| posted on 21/6/13 at 12:03 PM |
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Ideally remove the bzp although I don't tend to because they are usually only on jigs and the like which are not expected to last a long time.
Welding bolts on for something substantial like brake mounts seems a bit of a badge to me. Is there a more "proffesional" at of doing
it?
Also of you are welding galvanized parts avoid brething the fumes at all costs... Bad things are released when you burn the coatings
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Davey D
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| posted on 21/6/13 at 02:08 PM |
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To get a nice weld with decent penetration, then you need to grind the zinc plating off. You can get away with leaving it on when you are MIG welding
them on a high amperage settings, but since you are welding it to a kart chassis, then your power will be turned down. If you are TIG welding, then
you definately need to remove all traces of the zinc, as it will explode, and contaminate your tungsten
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