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7 Principles for Choosing A Laser Cutting Machine

Many customers do not know how to choose a laser when they buy a metal laser cutting machine. A fiber laser is the core component of a metal laser cutting machine. This is an important piece of equipment. Now, this article tells you how to choose a laser?

1. Laser beam quality

There are three important indicators of fiber laser beam quality

(1) Beam parameter product BPP

An important indicator describing the quality of the laser beam.

The smaller the BPP value, the smaller the beam can be focused, the higher the power density, the faster the cutting speed of the sheet, the higher the smoothness of the cut surface, and the cutting of high-reflectivity materials (such as copper) and aluminum. It can improve the cutting production efficiency, quality and application range.

(2) Roundness

The roundness of the light spot describes the uniformity of the energy distribution of the light spot in different directions. The roundness of the light spot has a uniform energy distribution in all directions. When performing non-linear cutting, the smoothness of the cutting surface in all directions and the consistency of the cutting speed can be guaranteed to ensure the quality of the cut product.

(3) Energy distribution of light spot

The energy distribution of the spot is highly circular, uniform, and concentrated, or the closer to the Gaussian distribution, the higher the center energy of the focused spot, and the better the symmetry of the spot. When cutting “the sharper the edge of the blade”, the faster the cutting speed of the thin plate, the better the smoothness of the cutting surface, and the higher the consistency of the gap in all directions.

fiber laser
fiber laser

2. Laser output power stability

Describe the stability of the laser output power in the entire power range (10%-100%) under different output powers and long-term stability.

(1) Output power stability in the entire power range

The lower the stability value, the better the stability of the laser under different output powers, which can ensure the smoothness of the cutting surface and the consistency of the cutting speed when cutting at different thicknesses. It can improve the authenticity of the cut product and ensure the stability of the quality of the cut product.

3. Quality control of core components

The core components determine the overall performance and quality of the laser. Outsourcing of core components may make it difficult to control the overall performance and quality of the laser, and the performance and quality of the laser cutting machine cannot be controlled. The life of the core components will affect the failure rate and life of the laser. The high service life of the core components determines the low failure rate and long service life of the laser, thereby reducing customer downtime and maintenance costs.

4. Redundant hot standby design of laser module

The redundant hot standby design of the laser module can activate the hot standby function when some laser power modules fail, and replace the failed power module with a standby power supply. The cutting machine can continue to be used normally. Due to the failure of some power modules, the customer’s downtime cost is reduced.

MAX Laser
创鑫

5. Laser electronic dehumidifier

When the temperature of the laser cooling system and cooling equipment is lower than the dew point temperature of the surrounding humid air, condensation will occur, which will cause equipment corrosion and malfunction.

6. The degree of protection of the laser cabinet

The protection level of the laser cabinet describes the waterproof and dustproof level of the cabinet. The high IP cabinet can effectively prevent external dust and water from entering the cabinet, keep the inside of the laser cabinet clean and dry, avoid laser failure due to dust and water entering the cabinet, and reduce the customer’s laser maintenance costs and downtime costs.

7. Electro-optical conversion efficiency (WPE)

Describes the ratio of electrical input power converted to output power. The electro-optical conversion efficiency is high, the power consumption is low at a certain output power, and the laser heat is low, which reduces the customer’s laser power consumption cost and water cooling power consumption cost.

安德烈·陈

安德烈·陈

Hi, I’m Andrea Chen, the creator of dwcnclaser.com. We have been manufacturing laser cutting equipment factories in China for 12 years. The purpose of this article is to share with you the knowledge about laser cutting equipment from DOWELL laser. Views of Chinese suppliers.

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