Brazing Holes In Sheet Metal

Brazing is the process of joining two independent pieces of metal to form one strong load bearing joint.

Brazing holes in sheet metal.

Brazing requires less energy than welding and can be used to join dissimilar metals. For these types of holes i start by cleaning the area around the hole with an angle grinder and flap disc. The easiest holes to fill are small holes about the diameter of a pen or smaller. Apply this paste to the areas on the metal pieces that will be joined using the brush.

Mix a small amount of flux with water to form a paste. Brazing is similar to soldering but at higher temperatures. Therefore during the brazing process you should take care to maintain a clearance between the base metals to allow capillary action to work most effectively. My favorite is low temperature brazing using an alloy called hts 735 ii.

By comparison high temp soldering brazing is guaranteed to warp and buckle the metal. Wipe the areas on the metal pieces that will be joined with the emery cloth so the surfaces are free from dust and grease. Brazing means melting an alloy to join two metals. The key tip is to make sure you take the time to setup your welder for nice flat spot welds and leave time for the metal to cool between each weld.

Brazing as we ve seen uses the principle of capillary action to distribute the molten filler metal between the surfaces of the base metals. Use the right brazing rod material for the metal used in your project. There are a few different brazing systems out there. Did you want to learn how to work around that and deliver a solid re.