Stainless Steel Sheet Welding

The team programs a mig welding robot to perform the weld and places the workpiece inside.

Stainless steel sheet welding.

For most jobs welding stainless steel you ll want to use 030 inch diameter stainless steel welding wire. For thicker base pieces step up to 035 inch to 045 inch welding wire. However even this simple process has its complications. To begin a weld set the steel in place over a welding table using clamps and jigs.

The shielding gas recommended for short circuiting welding of stainless steel contains 90 helium 7 5 argon and 2 5 carbon dioxide. Alternative gases that you can use are 98 argon and 2 co2 or 98 argon and 2 oxygen mix. Less welding heat is required to make a weld because the heat is not conducted away from a joint as rapidly as in carbon steel. Some things that need to be considered include.

Stainless steel is generally helpful in welding. The best way i have found to tack weld stainless steel sheet metal is. To weld sheet metal with solid wires use electrode positive ep or reverse polarity. In addition to welder skill and equipment availability the application priorities cost productivity and bead appearance for example influence which stainless steel welding process fabricators ultimately choose.

Mode of metal transfer. Stainless steels which require special welding procedures are discussed in later sections. When welding 304 stainless steel er308 er308l and er308lsi wires are compatible but for welding 316l stainless you need a 316l wire. Again stainless steel and the filler metals used to weld it generally are more expensive than carbon steel.

With these materials use a tri mix gas 90 helium 8 argon and 2 co 2. Make sure the fitup is tight with absolutely no gap prop your tig cup right on the joint with the sharp tungsten electrode tip less than 1 16 from the joint. The gas gives the most desirable bead contour while keeping the co2 level low enough so that it does not influence the corrosion resistance of the metal. Then join the steel together through mig or tig welding.

In resistance welding lower current can be used because resistivity is higher. In most cases mig welding stainless steel wire and sheet metal forms is pretty simple for marlin s manufacturing team. Welding is a way to combine pieces of stainless steel together for repair work and even craft projects.