How To Grind Sheet Metal Welds

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How to grind sheet metal welds. This is a slightly worn they come with straight edges 40 grit flap disc. Choosing the right grinder. Using a grinding wheel on a weld. Dealing with or preventing the heat discoloration on the outside of the cabinet when brackets are welded to the inside surfaces of the cabinet.

Grinding finishing outer corner welds of 304 stainless steel sheet as in fabricating a cabinet to match the 4 grained finish of the rest of the cabinet. The neater your weld was the less grinding you will have to do and after you have spent a whole day grinding you will see why it s worth it to keep your welds neat in the first place. Effective grinding requires operators to apply enough pressure at the correct angle to let the grains the cutting tool of a grinding disc remove the most metal in the shortest time while not prematurely wearing the disc or burning out the grinding tool. Once it s welded solid you just have to grind the weld down flush.

I carefully ground down the weld making sure not to grind into the thin sheetmetal around it. How to grind metal method 1 of 4. The aim here is to grind the joint down to a level and continuous surface with the rest of the parent metal. I prefer to use a thin cut off wheel for this as it seems to be more precise and puts less heat into the panel than a grinding disk.

Using an angle grinder remove the metal directly above the spot weld without burning thorough the panel. In effect you grind the spot welds and remove part of the metal to make the actual removal process easier. Smoothing welds on sheet metal. You are just removing excess weld to make the final rounds easier.

Use an electric grinder to be fast and efficient. At this point your gaps should be about a quarter inch apart. Set one end of a c clamp on the. Don t try to grind them flush.

I ve always used angle grinding discs to finish welds but the ordinary grinding discs are very coarse and difficult to control so i tended to grind almost back to the parent metal then use a little body filler. To achieve this initial stock removal and if the surface finish is not essential the metal worker might choose to use a simple grinding wheel with an angle grinder. Clamp the metal to your work surface.