LASER NEWS

According to such demand, laser cutting head companies have developed professional cutting heads one after another. For example, Wanshunxing is a company specializing in laser cutting heads, and also provides other supporting cutting head products, such as laser cutting nozzles, laser welding heads, ceramic rings and so on. Domestic laser cutting head manufacturers can now achieve traceless cutting of medium and small power lasers. Of course, when it comes to high power, there is still a lot to be desired.

As we all know, high-precision and high-efficiency fiber laser cutting machines are processing tools in the metal processing industry. Why do we say that when customers consult our laser cutting machine, we must first understand the needs of customers, because the same fiber laser cutting machine uses different accessories, and the final cutting effect will be different. Therefore, if users want to choose When purchasing a cost-effective fiber laser cutting machine, the matching of its accessories is extremely important. The following editor will teach you about the high-quality selection of the core accessories of the fiber laser cutting machine.

The challenges of laser welding copper are related to two main physical properties of the material: low absorptivity to most high-power industrial lasers and high thermal conductivity during the process. We know that the absorption rate of copper increases with decreasing wavelength, which means that lasers in the visible band will yield significant advantages for copper welding.

Infrared lasers create absorption problems when dealing with solid materials. If the material melts or even evaporates by deep penetration welding, its absorption rate increases significantly. The absorption rate of solid copper is less than 4%, while the absorption rate of copper vapor (keyhole penetration welding) is higher than 60%. This absorption problem can be overcome by very high power densities, which greatly speed up the melting and evaporation of copper and thus increase its absorption.

A beam with high energy density is one of the advantages of laser cutting so that the focal spot diameter will be as small as possible in order to create tiny gaps. Because of the smaller depth of focus of the focusing lens, the smaller the diameter of the focal spot. High-quality, high-precision cutting, the effective depth of focus of the lens diameter and another material is cut, and therefore control the focus position, and the cutting surface of the material is very important.