Wuhan High Energy Laser shares several schemes of laser cutting machine perforation

by:Caodahai     2021-09-02
Laser cutting machine punching is a relatively common processing method, but in order to meet different punching needs, the method of laser cutting machine punching is different. Below we will refer to several common punching methods.  1. Laser cutting machine segmented slope perforation    This is based on the principle of the laser cutting machine, and considers the possibility of achieving a small perforation and less slag discharge. That is: first melt the metal surface with a small energy, and when the laser absorption rate of the metal increases after the surface melts, increase the energy while taking into account the spattering of the slag when it is discharged. Continuous operation achieves the purpose of penetrating metal materials. The advantage is that this type of perforation is generally formed by a mixture of 2 to 3 processing conditions. The energy provided is continuously enhanced according to a certain law, and acts on the metal in the form of pulse waves. Although the perforation time is relatively long, the pierced aperture is small, and the thermal influence around the aperture is significantly smaller.  2. High-energy perforation of laser cutting machine    This is a way to use a large continuous wave energy to act on the metal to achieve the purpose of perforation in a short time. The thickness of the metal sheet determines the size of the hole to be penetrated and the condition of slag splash. This perforation method has relatively large limitations, and is generally not suitable for use when the accuracy of the workpiece is required.  3. Laser cutting machine side blow perforation Although the high-energy perforation speed of laser cutting machine is fast, splashes and residual slag will often affect the sensing accuracy of the processing head on the cutting path, thereby affecting the processing quality. In severe cases, it may damage the nozzle front end of the processing head and cause an alarm, thereby affecting the processing efficiency. The side-blowing perforation test overcomes these possible difficulties. The principle is to add a high-pressure gas nozzle to blow away the slag around the perforated part and cool it appropriately while perforating. 4. The laser cutting machine's impact perforation side blow perforation solves the problem of high-quality perforation of medium and thick plates. However, for thick plates, due to the excessive slag discharged during the perforation, the depth of the perforation is too deep, and the side blow cannot be very deep. In order to discharge the slag and maintain the basic shape of the pierced aperture, Wuhan High Energy Laser specifically responds to the impact perforation method of thick plates. This method is based on fully grasping the mutual change law of the power density of the laser action part and the metal melting during perforation, and the energy density of the laser cutting machine changes with the melting of the metal, so as to achieve the effect of rapid perforation.   The above four laser cutting machine perforation methods can meet the processing of various thicknesses of plates. You can choose the appropriate laser cutting machine perforation method according to your own requirements. Wuhan Gaoneng Laser specializes in manufacturing laser cutting machine manufacturers and provides various metal processing solutions. If you have any questions, you can log on to the official website of Wuhan Gaoneng Laser Equipment Manufacturing Co., Ltd.: http://www.gnlaser.com/ for details.
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