Bob Dean Supply's Machine Shop was founded in 1947 and is the oldest operating shop in Southwest Florida. Bob Dean Supply has three TIG welding stations and six MIG welding stations located in its 20,000 square foot shop. A mobile welding truck with Heli-Arc trailer is also available for location welding jobs and emergency repairs.
TIG Welding - TIG stands for Tungsten Inert Gas welding. Also called GTAW (Gas Tungsten Arc Welding) and Heliarc, which was Linde's trade name for the TIG process when it was introduced in 1941. The arc is started with a tungsten electrode shielded by inert gas and filler rod is fed into the weld puddle separately. A slower process than MIG, it produces a more precise weld and can be used at lower amperages for thinner metal. It can also be used on exotic metals.
MIG Welding - Gas Metal Arc Welding (GMAW) is frequently referred to as MIG welding. MIG welding is a commonly used high deposition rate welding process. Wire is continuously fed from a spool. MIG welding is therefore referred to as a semiautomatic welding process. The shielding gas forms the arc plasma, stabilized the arc on the metal being welded, shields the arc and molten weld pool, and allows smooth transfer of metal from the weld wire to the molted weld pool. MIG welding benefits include all position capability, higher deposition rates than SMAW, longer wels made without starts and stops, and minimal post weld cleaning.