Which laser metal cutting is better? Technology comparison and expert advice
Choosing the appropriate metal laser cutting method is not just a technical issue, but a strategic decision that affects the cost, quality and speed of production. There are different types of laser installations on the market, and it is easy for a beginner to get confused in terms of: CO2, fiber, solid-state. In this article, we will look in detail at the differences and determine which laser metal cutting is best suited for your tasks. You will receive clear selection criteria and understand how to avoid typical mistakes.
The main types of lasers for metal cutting
To understand which laser metal cutting is better, you need to understand the three main technologies that dominate the market today.:
- CO2 lasers (gas): A classic that uses a mixture of gases (CO2, nitrogen, helium). They are characterized by high power and excellent cutting quality on non-metals and thin sheets of steel. However, they have low efficiency (about 10-15%) and require frequent maintenance.
- Fiber (fiber-optic) lasers: The modern generation, where the active medium is optical fiber doped with rare earth elements (ytterbium, erbium). The efficiency reaches 30-40%, the service life is up to 100,000 hours. This is the gold standard for cutting most metals.
- Solid-state lasers (on crystals): Use crystals (Nd:YAG, Nd:YVO4). They are less common for cutting sheet materials, and are more often used for welding or engraving due to their lower power.
Fiber laser: the universal leader
If you are looking for the optimal solution for most metals, the answer is obvious: fiber laser. It provides high cutting speed, excellent edge quality and minimal thermal impact zone. This is especially noticeable when working with non-ferrous metals. For example, cutting aluminum with a laser https://www.claser.ru/lazernaya-rezka-alyuminiya.html Fiber type is fast, clean and cost—effective. The wavelength of the fiber laser (about 1 micron) is better absorbed by aluminum than the infrared radiation of the CO2 laser, which allows it to be cut at high speed without deburring.
Advantages of fiber lasers:
- Efficiency: High efficiency and low power consumption.
- Compact: Small installation dimensions.
- Reliability: Minimum moving parts, no optical adjustment required.
- Beam quality: Allows you to cut thin parts with high precision.
CO2 laser: when edge quality is critical
Despite the rapid development of fiber technologies, CO2 lasers are not losing ground in some niches. For cutting thick sheets (more than 10-15 mm) of carbon steel, the CO2 laser can show the best edge quality.