Tig Brazing Sheet Metal

Apply this paste to the areas on the metal pieces that will be joined using the brush.

Tig brazing sheet metal.

Mix a small amount of flux with water to form a paste. While the melting point of steel is around 2700 f. I m told brazing pinholes after media blasting is nearly as robust as cutting out the rot shaping and welding in new sheet metal but only half as time consuming as in expensive but only in areas that don t show. Wipe the areas on the metal pieces that will be joined with the emery cloth so the surfaces are free from dust and grease.

Apply the brazing rod to the joint while continuing to heat the metal surfaces. The diameters down to 020 040 and 1 16 inch tungsten are popular. Brazing requires less energy than welding and can be used to join dissimilar metals. Tig brazing may be a very useful brazing technique but tig welders are among the most difficult welders to use in the shop.

Position the metal as desired. Tig welding sheet metal forget the larger 1 8 inch tungsten electrode and use a smaller one. Ceriated tungsten are preferred with thoriated tungsten as a second option. Tig welding with silicon bronze is technically tig brazing because usually the base metal being welded brazed has a much higher melting point than silicon bronze filler rod.

It s a process sometimes known as tig or electric brazing. The melting point of silicon bronze tig rod is between 1800 and 1990 f. Read on to find out more about tig welders brazing and how you can use one to pull it off. Brazing is done at lower temperatures without melting the base metals.

In most cases an overlapped joint will be stronger and braze together easier than a gapped joint. The filler material flows into any and all microscopic crevices in the metal and pulls the pieces together similar to a permanent velcro.