The process of laser cutting stainless steel

Laser cutting technology is widely used in various industries and materials fields because of its advantages of fast cutting speed and good quality.

Laser cutting technology is widely used in various industries and materials fields because of its advantages of fast cutting speed and good quality. The process of laser cutting stainless steel materials has many advantages. The stainless steel materials cut by laser have narrow cutting seams, high machining accuracy, and small deformation of the workpiece.

The principle and process of laser cutting are: the laser beam generally uses carbon dioxide gas. After focusing through special components, a small spot of light is formed at a specific location, and the focus can reach a high temperature and power at a specific location, and only a small part of the heat formed locally will be transferred to other parts of the stainless steel material. The heat consumed due to conduction is much smaller than the heat input by the laser beam. Therefore, the stainless steel material can be heated to the degree of gasification extremely quickly in the focus position, and the holes and gaps can be formed by gasification and evaporation. Through the control of the intelligent system, the mechanical movement of the material and the beam of light will produce relative linear movement, so that the hole will continue to vaporize to form a very narrow slit. Due to the rapid local heating of stainless steel materials, the heat consumed by conduction is small, and the trimming is very little affected by heat. Therefore, the width of the incision is narrow, generally only 0.1-0.5mm, and the workpiece is basically not affected by deformation.

When cutting thicker stainless steel materials, adding oxygen can play a very good auxiliary role, and the maximum thickness of cutting can reach 20 mm. Oxygen as an auxiliary gas can chemically react with molten stainless steel metal. The chemical reaction will release heat and produce oxidized materials. At the same time, the gas generated by the chemical reaction can also help the stainless steel parts to blow away the slag in the cutting seam, and the cutting surface will be smooth and beautiful. Therefore, the kerf can generally be welded without reprocessing, which facilitates subsequent processing. The stainless steel plate processed by laser cutting has no burrs, wrinkles and high precision. Laser cutting does not require a mold, and is currently controlled by a microcomputer program. Modern laser cutting systems can easily cut workpieces of different shapes and sizes without using molds or repairing molds, which not only saves processing costs and production costs, but also saves Time to change the mold.