Views: 219 Author: Leapion Publish Time: 07-21-2022 Origin: Leapion
When it comes to the recently popular carbon steel cutting process in the fiber laser industry, it suddenly began to hot the high-speed cutting carbon steel using oxygen, negative focus.
What makes this new cutting process better than the traditional positive focal length cutting of carbon steel? Is your fiber laser cutting machine suitable for the new process? How fast can the new processing process actually cut? Has the cutting speed increased, and has the cutting quality kept up?
With these questions, let the professional Leapion engineer tell you the answer with data: what is good about the new processing process?
The traditional carbon steel oxygen cutting process is more difficult to play the advantages of the pure laser power enhancement, and air cutting will have the disadvantage of poor section quality.
When continuously increasing the laser power, it is not significantly increased the cutting speed of a medium thickness carbon steel plate, only a small increase, failing to increase in the same proportion with the laser power.
In order to obtain a good section and perpendicularity, a high positive defocus needs to be used, which requires the optical axis to be precisely aligned and places high requirements on the operator's process.
Although the speed is faster than oxygen cutting, the hanging slag on the lower surface gradually increases as the thickness of the sheet increases.
With the growing demand for carbon steel cutting quality and output in the sheet metal industry, traditional processes cannot meet today's production requirements. And fiber laser cutting as an advanced producing technology has gradually penetrated into the sheet metal industry, and with the continuous improvement of laser power, it has promoted the birth of a new process - high-speed cutting of carbon steel with oxygen and negative defocusing. For cutting medium thickness carbon steel plates, this new processing process allows the advantages of a high-power laser to be exploited to a greater extent.
Cutting speed is dramatically increased or even doubled!
Reduced accuracy requirements for beam coaxially!
No slag on the bottom, eliminating the sanding process!
Tested by process applications, carbon steel cutting use the power of a fiber laser source at 12 KW or above with oxygen and negative defocusing high-speed cutting process, it can significantly improve the cutting capacity, efficiency, and quality. And with the increase in power, processing speed is greatly increased, the workpiece is easier to drop, and the processing stability is improved too.
For cutting 1-6mm carbon steel, choose (Φ1.2) nozzle.
For cutting 6-10mm carbon steel, choose (Φ2.0) nozzle.
For cutting carbon steel of 12-16mm, choose (Φ3.0) nozzle.
For cutting carbon steel of 16-20mm, choose (Φ4.0) nozzle.
For cutting carbon steel of 20-25mm, choose (Φ5.0) nozzle.
For cutting 1-6mm carbon steel, choose (Φ1.2) nozzle.
For cutting 6-10mm carbon steel, choose (Φ2.0) nozzle.
For cutting carbon steel of 12-16mm, choose (Φ3.0) nozzle.
For cutting carbon steel of 16-20mm, choose (Φ4.0) nozzle.
For cutting carbon steel of 20-25mm, choose (Φ5.0) nozzle.
12kw carbon steel cutting thickness (mm) | Oxygen, positive focus point bright surface (m/min) -Original process | Oxygen negative defocusing high speed (m/min) -New process |
12 | 2.2 | 3.5 ↑60% |
16 | 1.8 | 3.2 ↑78% |
20 | 1.3 | 2.4 ↑85% |
This new process has been applied at the customer's site, using a 12KW laser source to cut carbon steel 16-25mm thick with an oxygen high-speed cutting process, the cutting speed is 79%-120% higher than the traditional process. With the increase in power, the processing speed is greatly increased, the quality of cross-section is better, and the workpiece is easier to drop, meanwhile, the processing stability is improved too.
12kw carbon steel cutting thickness (mm) | Air cutting（m/min） | Oxygen, positive focus point bright surface (m/min) -Original process | Oxygen negative defocusing high speed (m/min) -New process |
16 | 5 | 1.9 | 3.4 ↑79% |
20 | 3.3 | 1.5 | 3.3 ↑120% |
25 | 1.5 | 1.3 | 2.8 ↑115% |
20mm carbon steel oxygen negative defocus high-speed cutting sample
25mm carbon steel oxygen negative defocus high-speed cutting sample
How to make the best use of our customers' high-power laser source, maximize the performance and help our customers to create value continuously, has always been the direction that Leapion Laser explores and efforts. With the core advantages of leading technology and vertical industry chain integration ability, Leapion continues to develop new processes and new fields, always close to clients' needs, accelerating product iteration and process development, aiming to provide the market and customers with more reliable fiber laser innovative products and solutions based on mature technology.
