Welder Deposition Rate
- 450A MIG with 1/16" wire gets 17 lb/hr. 
- This gets us to make about 1-2 heavy duty sprockets for tractor drive
- This gets us know into fesibility of MIG Casting engine blocks.
- This is a low skill process, allowing further opportunity in Extreme Manufacturing starting with scrap steel. This upgrades the need for wire drawing to produce welding wire.
- Disadvantage: this requires 2x the energy over casting or hot rolling - because an extra step is needed to melt the feedstock fully. Quenching in water can possibly reclaim energy of water for space heating.
- Using multiple welders at the same time in the Extreme Manufacturing scenario allows for the quickest way to cast complexity - 5 minutes per 1 lb part such as a small coupler. This is the amount of time to just turn on an induction furnace for regular casting.
- With 5 welders and 50kW - we have 80 lb/hour deposition rate of finished parts.
- This lends itself to robot arm automation in due time.
- The above indicates 6 cents/lb metal energy cost for deposition with a 450A welder.