Table II.
Fume generation rates, normalized fume generation rates, and costs per linear m. of weld and fume generation rates in mg fume/linear m. for 11 welding processes
| Process | Fume Generation Rate (FGR) (mg min−1) | Normalized FGR (mg g−1) | Cost ($ m−1) | FGR (mg m−1) | Cr6+ GR (μg m−1) |
|---|---|---|---|---|---|
| Surface Tension Transfer | 21 | 0.9 | 4.50* | 60 | 140 |
| Regulated Metal Deposition | 40 | 1.6 | 4.20* | 110 | 430 |
| Cold Metal Transfer | 62 | 1.3 | 4.20* | 160 | 140 |
| Short circuit Ar/O2 | 40 | 1.6 | 4.50* | 110 | 340 |
| Short circuit Ar/CO2 | 27 | 1.1 | 4.50* | 80 | 350 |
| Short circuit He/Ar/CO2 | 69 | 2.7 | 4.50* | 190 | 790 |
| Axial Spray | 35 | 0.6 | 3.18 | 70 | 350 |
| Axial Spray | 55 | 0.9 | 3.18 | 110 | 560 |
| Pulsed Spray | 15 | 0.2 | 3.15 | 30 | 130 |
| Flux-cored | 141 | 2.8 | 3.41 | 220 | 620 |
| Shielded Metal Arc | 228 | 8 | 7.41 | 630 | 22000 |
*
estimated