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How to ensure the accuracy of stainless steel laser cutting

How to ensure the accuracy of stainless steel laser cutting

Stainless steel laser cutting processing is a processing method that has a very wide range of technical applications in laser processing. It is a particularly important application technology in the laser processing industry. Stainless steel laser cutting processing has been widely used in automotive, chemical and other industrial fields.

The principle of stainless steel laser cutting is to melt and evaporate the workpiece through the energy released when the laser beam irradiates the surface of the workpiece, so as to achieve the purpose of cutting and engraving. Cutting accuracy is an important part of measuring the processing effect of a laser cutting machine, but the laser cutting accuracy does not entirely depend on the equipment itself, but is composed of many factors. So, how to achieve high precision in the laser cutting process? The following are several key technologies to improve the precision of stainless steel laser cutting.

1. Focus position control technology. The smaller the focal depth of the focusing lens, the smaller the focal diameter, so it is very important to control the position of the focal point relative to the surface of the material to be cut.

2. Cutting and perforating technology. Except for a few cases, any thermal cutting technique can start from the edge of the board, usually a small hole must be drilled in the board. Earlier on the laser drilling compound machine, the punching machine was used to punch holes, and then the stainless steel laser cutting process was used to start cutting from the small holes.

3. Nozzle design and air flow control technology. When performing stainless steel laser cutting on steel, oxygen and a focused laser beam will illuminate the material to be cut through the nozzle to form an air flow. The basic requirement of air flow is that the air flow into the incision should be large and the speed should be high, so that enough oxidation can make the incision material fully carry out the exothermic reaction. At the same time, there is enough momentum to eject the molten material.

Stainless steel laser cutting has no burrs, which is better than plasma cutting. For many electromechanical manufacturing industries, because the modern stainless steel laser cutting processing system of the microcomputer program can easily cut workpieces of different shapes and sizes, it is usually used in the stamping and molding process; although its processing speed is slower than the die, it does not The mold is consumed, there is no need to repair the mold, and the time to replace the mold is saved, thereby saving the processing cost and reducing the product cost, so it is more economical in general. This is why stainless steel laser cutting is so popular.