Home > News > Content

Contact Information

Address: No.168 Caiyuan Industrial Park,North Industrial Road Licheng District,Jinan City , Shandong Province, China
Tel: +86-531-88611918
Fax: +86-531-88611918
E-mail: admin@qilicnc.com.cn

How To Use The Laser Cutting Machine To Produce High Quality Good Workpieces
Jul 11, 2017

As an internationally renowned manufacturer of laser cutting equipment, 14 years has been committed to the development of laser cutting machine, the following, and we explore the impact of laser cutting machine cutting several factors.

One of the factors: cutting speed

The cutting speed is affected by the laser power density, material properties, material thickness and so on. When the other parameters are kept constant, the power of the laser cutting machine (within the required range) is changed to improve the beam mode and change the spot size Cutting speed has an impact.

In cutting the thin metal, the cutting speed can still maintain a satisfactory cutting quality in the relative adjustment range. For thick metals, the slow cutting speed will cause the discharged hot melt material to ablate the incision surface and make the cut surface Rough, fail to meet the cutting quality requirements.

Factor two: focus position adjustment

The laser power density affects the cutting speed, and the relative position of the focus and the workpiece surface is particularly important in determining the quality of the cutting after determining which lens to use. Due to the high power density at the focal point, in most cases, the focal position at the time of cutting is just at the surface of the workpiece, or slightly below the surface. Throughout the cutting process, ensuring that the relative position of the focus and the workpiece is constant is an important condition for obtaining a stable cutting quality. Sometimes, the lens work due to poor cooling and heat caused by changes in focus, which requires timely adjustment of the focus position.

Factor three: auxiliary gas pressure

The type and pressure of the auxiliary gas will have a significant effect on the cutting speed of the laser cutting machine. For most of the metal laser cutting is the use of active gas (as long as the oxygen), the formation of hot metal and the formation of exothermic reaction, this part of the additional heat can increase the cutting speed of 1/3 ~ 1/2.

Laser cutting practice shows that when the auxiliary gas is oxygen, its purity has a significant effect on the cutting quality. A reduction in oxygen purity of 2% reduces the cutting speed by 50% and results in a significant deterioration in the quality of the incision.

Factor four: laser output power

For the continuous wave output of the laser, the laser power size and mode will have an important impact on the cutting. It is often found that a higher power density is obtained at a focal point that is less than the high power condition and a better cutting quality is obtained.

In summary, the factors that affect the laser cutting is more complex, and the focal position, auxiliary gas pressure and laser output power will affect the cutting speed, cutting speed will directly affect the laser cutting machine cutting quality, so in the laser cutting process , If the cutting quality changes, first check the regulation of several factors above.