Effect of auxiliary gases on metal laser cutting cost-Bonnie
Effect of auxiliary gases on metal laser cutting cost
It will add metal laser cutting cost.
Firstly, Let’s take a 1.5 mm thick 304 stainless steel as an example.
As a result, to analyze the cutting cost when air and nitrogen, respectively, as shown in Table 1.
The model used in the comparison is the latest generation of fiber laser cutting machine equipped with a self-developed fiber laser oscillator.
Table 1 Comparison of Cutting Costs
| Item | SS304-1.5 | SS304-1.5 |
| Processing speed(mm/min) | 35000 | 35000 |
| Auxiliary gas type | Air | N2 |
| Air pressure (MPa) | 0.80 | 0.80 |
| Auxiliary gas flow (NL/min) | 296.7 | 296.7 |
| Processing time per meter(sect) | 1.7 | 1.7 |
| Electricity cost(Yuan/Hr) | 14.675 | 14.675 |
| Air compressor Electricity cost (Yuan/Hr) | 12.25 | 5.25 |
| Auxiliary gas cost (Yuan/Hr) | 0 | 15.347 |
| Subtotal (Yuan/Hr) | 26.9.25 | 35.272 |
| Electricity cost (Yuan/m) | 0.012 | 0.012 |
| Air compressor Electricity cost (Yuan/m) | 0.006 | 0.002 |
| Auxiliary gas cost (Yuan/m) | 0 | 0.015 |
| Total (Yuan/m) | 0.018 | 0.029 |
Secondly,
The electric charge is 1 Yuan/kW. The N2 cost: 1.5 yuan.
Thirdly,
when cutting with air, the power consumption of the air compressor is calculated according to the constant screw air compressor of 17.5kW, 1.26MPa and 2.3m3/min
When cutting with N2, the air compressor is still required to supply air to the machine, thus it will also generate electricity cost.
In conclusion, Choosing wisely means considering the application from setup to finished piece.
