If you lay the pieces on the floor, you should make sure you’re not welding on a combustible surface.Ĭlamp the pieces with a welding clamp to hold them together, and then you can start welding. Once you’ve ground the zinc coating from the area you’re going to weld, place the pieces together on the work surface in the arrangement you want to set them in. An important aspect to keep in mind is that you should leave the workspace before you take off your mask, and give the area a decent amount of time for it to air out. Once the zinc coat is removed, the steel can be welded just like you would weld regular, uncoated carbon steel. Usually, removing the zinc coat before the weld reduces reworking tasks, and so dramatically reduces the overall cost of the weld. Porosity, lack of fusion, and cracking should also be removed. Though two processes are added, you can eliminate or at least dramatically reduce the amount of spatter that is produced as well as the amount of cleanup work this way. In some cases, respraying or painting is done even if the zinc coat was not removed before the process. This means that you will have to add two tasks: removal of coating and respraying the weld seam after the weld is complete to regain the corrosion resistance that is lost. The best way to weld galvanized steel is to get rid of the zinc coating, regardless of which welding process you are going to use. The weld can burn the zinc off, but porosity is almost inevitable and is mainly only dependent on how thick the zinc coating is. Though the heat from the arc can quickly burn off the zinc layer, the weld produced could have issues like porosity, an unsatisfactory bead, lack of fusion, and too much spatter. If you try to weld it without doing away with the galvanizing layer from the area that is to be welded, the weld puddle pops and blows out, making it a safety hazard to anyone around.
Galvanized metals such as steel can be welded in a similar way to uncoated steel if it is adequately prepared. 4.3) Why do welders drink milk? Can You Weld Galvanized Metals?
0 kommentar(er)
