Martensitic chrome steels are now among the steel grades of the future. They are highly resistant to corrosion, and at the same time have high strength parameters, which allows them to be used in many industries (including the oil industry, in the production of machine parts, cutting tools, and the production of elements exposed to water and sea atmosphere). Parts of turbines, pumps and compressors in the metallurgical and energy industries are often made of martensitic steel. It is worth mentioning, however, that martensitic steel, due to its very high carbon content, is considered extremely difficult to weld, therefore laser technology plays an important role here.
Laser welding is currently one of the most modern technologies. The high speeds and precision of welding while maintaining the excellent quality make this method very popular. Nevertheless, the specificity of this process requires very careful preparation of the edges for welding, so as to obtain the narrowest possible distance between the joined elements. These requirements greatly reduce the error tolerance for pre-welding activities, such as cutting, bending or stamping an element. Therefore, the standards required by the laser can be difficult to achieve. To be able to make connections using a laser, it is important to have the appropriate qualifications.
