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.
Stainless steel sheet welding.
In resistance welding lower current can be used because resistivity is higher.
To weld sheet metal with solid wires use electrode positive ep or reverse polarity.
Mode of metal transfer.
For mig welding stainless steel a shielding gas mixture that s 90 percent helium 7 5 percent argon and 2 5 percent carbon dioxide is generally ideal.
To begin a weld set the steel in place over a welding table using clamps and jigs.
Stainless steel is generally helpful in welding.
Alternative gases that you can use are 98 argon and 2 co2 or 98 argon and 2 oxygen mix.
How to mig weld stainless steel.
Again stainless steel and the filler metals used to weld it generally are more expensive than carbon steel.
The best way i have found to tack weld stainless steel sheet metal is.
Stainless steels which require special welding procedures are discussed in later sections.
Then join the steel together through mig or tig welding.
Some things that need to be considered include.
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.
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.
However even this simple process has its complications.
Welding is a way to combine pieces of stainless steel together for repair work and even craft projects.
For thicker base pieces step up to 035 inch to 045 inch welding wire.
In most cases mig welding stainless steel wire and sheet metal forms is pretty simple for marlin s manufacturing team.
When welding 304 stainless steel er308 er308l and er308lsi wires are compatible but for welding 316l stainless you need a 316l wire.
Even though most of the welding machine manufacturers have included a table of materials and voltage settings in the machine it is highly important for you to pick the right kind of gas and electrode wire to be used for mig welding stainless steel.
The team programs a mig welding robot to perform the weld and places the workpiece inside.
With these materials use a tri mix gas 90 helium 8 argon and 2 co 2.