Cutting head and nozzle and power can influence fiber laser cutting machine cutting quality – Catherine

 Cutting head and nozzle and power can influence Fiber laser cutting machine cutting quality

In the use of optical fiber laser cutting machine,  radium laser to introduce you. Cutting head and nozzles and power can influence fiber laser cutting machine cutting quality.

Firstly, the nozzle of optical fiber laser cutting machine is easy to pollute and damage. The nozzle roundness is not good or the local blockage cause hot metal splash will cause the vortex in the nozzle. Resulting in the obvious cutting performance. The nozzle focus beam, such as different axes, has a great influence on the kerf quality. So, for fiber laser cutting machine, the nozzle to keep clean and not damaged is the best.
Second, fiber laser cutting machine in adjusting nozzle and focused beam coaxial process. It must set in the system of cutting software setting common preset (non follow-up preset). Click the „pre transfer“ before cutting must keep the cutting head below the „enough size“ plate to prevent preset mode the cutting head set limit. The laser power at the same time preset must be controlled below 10%, suggestions for 7%.

In practice, it is better to cut carbon steel with oxygen by 1.2-1.5mm nozzle. And cut stainless steel with nitrogen. The nozzle with caliber 1.0-1.5mm caliber is better. And the distance between nozzle and plate is controlled between 0.4-1.2mm.

    Different power fiber laser cutting machine, cutting capacity and cutting thickness range is not the same. Then, how to choose the power when choosing the appropriate fiber laser cutting machine?

Fiber laser cutting machine has a prominent advantage in the blanking of sheet metal. It relies on the high temperature produced by laser. Melting and irradiating the sheet metal surface. And through the numerical control of the displacement, to achieve the purpose of cutting. The advantages are mainly embodied in the laser processing, not deformation, high degree of flexibility. Small slot, surface smooth without burr, capable of cutting workpiece with arbitrary complex graphics.

Then, according to the different thickness, power plays an important determinant of cutting quality and speed.

First of all to carbon steel as an example, as shown in the figure below, the maximum speed of 2mm steel using 500W cutting machine is about 6.6 meters per minute. The highest speed 1000W cutting machine is about 8 meters per minute. The maximum speed of 6mm steel using 500W cutting machine is about 0.8 meters per minute. The maximum speed of 1000W the cutting machine is about 1.6 meters per minute, and so on.
Then, with stainless steel as an example, as shown in the figure, the highest speed below 2mm stainless steel using 500W cutting machine is about 8 meters per minute. And the highest speed 1000W cutting machine can reach about 17 meters per minute. About 3mm stainless steel using 500W cutting machine maximum speed of about 0.4 meters per minute. The use of 1000W and the highest speed cutting machine is about 1.4 meters per minute, the gap is very obvious.
Thus, 1000W fiber laser cutting machine is clearly a better choice for 500W and 1000W fiber laser cutting machine.