| Abstract Scope |
Droplet temperature has been measured consistently for the last few years. These measurements yield light into trends in deposition rate, fume formation rate, and explain anomalies seen in accurate measurements of wire feed speed against current. The role of droplet temperature can be captured in a mass and energy balance for wire-based processes including GMAW, MCAW, FCAW, and SAW. Other processes such as hot-wire additions ESW, and EGW are also amenable to this treatment. This analysis yields values for anode fall voltages and can explain the higher deposition rate in Mg-containing aluminum alloys. |