How to / DIY > Everything else
Interesting
hotater:
Billy---
"Micro Fusion" is a trade name for the metal build-up method that dkwflight mentioned. I think that's the Eutectic term for it. It's used on feed bowls and trolley tires and the journals of various shafts. It's not for joining metals, only building up a homogenous layer that can be ground back to size.
"SubArc" is where a mild steel wire (or multiple wires) are automatically fed onto a moving surface or joints. The wire is the electrode and alloys and fluxes are applied in a deep layer from a funnel. The excess alloy powders and fluxes are recycled back through the system. The company where I worked made wear plate by subarc....A-36 mild plate welded with six, 1/8" wire welding heads all of them weaving 3X and interlocked. Steel mill rolls are subarc welded then turned and ground to size. It's not a maintenance or repair welder...strictly production.
That head CAN be repaired by TIG or MIG welding but it MUST have extensive preheating, preparation, welding, and post heat-treatment. It's cheaper to buy another one.
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