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English
As a professional solution provider for laser processing heads, we have long been deeply engaged in optical path adaptation and on-site process debugging for laser welding. We fully understand that on-site welding is frequently plagued by various defects such as porosity, cracks, spatter and incomplete penetration. These issues not only compromise the appearance and airtightness of products but also directly reduce weld strength, leading to batch rework and cost losses.
It’s not the appearance but the parameters that determine whether a laser is good or not. Laser sounds sci-fi, yet it has long been integrated into our daily lives: Metal cutting in factories, logo marking on the back of mobile phones, myopia surgery in hospitals, and data transmission via optical fiber broadband—all of these rely on lasers. So here comes the question: How exactly do we evaluate the performance of a laser? Today, we will break down the 7 most critical parameter indicators of a laser.
Laser cutting is one of the most efficient methods for stainless steel processing, offering advantages such as high precision, smooth cut edges, and high production efficiency. However, in actual production, manufacturers often encounter various cutting defects — ranging from burrs and rough cut edges to incomplete cutting or excessive melting. These issues are closely related to key process parameters including cutting speed, laser power, focus position, and auxiliary gas pressure.
During operation, when electrical energy or other forms of energy are converted into light energy in a laser, a large amount of heat is inevitably generated. If such heat cannot be dissipated timely and effectively, the temperature of the laser will rise, which will adversely affect its output power, beam quality and wavelength stability. In severe cases, the laser chip and internal optical components may even be damaged. Therefore, efficient and reliable heat dissipation is one of the key technologies to ensure stable performance and extend the service life of lasers. With the continuous increase of laser power and the expansion of application fields, heat dissipation technologies are also undergoing continuous development and innovation. This paper introduces the main heat dissipation methods for lasers and their characteristics.
