high speed laser cutting machineThe cutting principle

High-speed laser cutting machine is more and more widely used in production in daily life. Today, the editor will take you to understand these basic knowledge points of high-speed laser cutting machine equipment, and it will no longer be done in vain.

High speed laser cutting machine laser cutting principle

　　high speed laser cutting machineThe basic principle of laser cutting is: the laser is concentrated on the material, the material is locally heated until it exceeds the melting point, and then the molten metal is blown away by the coaxial high pressure gas or metal vapor pressure, and the hole is continuously formed with the relative linear motion of the beam and the material.

While high-speed laser cutting has advantages over other forms of cutting, the process also has limitations, including:

Scope of applicable materials

♦inconsistent productivity

♦metal hardening

♦Higher energy and power consumption

♦Rising equipment costs

As mentioned earlier, laser cutting is suitable for various metals and non-metals. However, the material being cut and its characteristics often limit the applicability of certain cutting mechanisms, assist gases, and laser types. In addition, the material thickness has an important influence on the optimal laser power, assist gas pressure and focus position for laser cutting applications. Different materials or thicknesses in the same material also require adjustment of the cutting speed and depth throughout the cutting process. These adjustments can lead to inconsistent production times and increased turnaround times, especially in high volume production.

One advantage of laser cutting is that it produces high-quality cuts that typically do not require extensive secondary cleaning, treatment, or finishing. While this is advantageous in some respects, the final work hardening of the laser cut edge may be an issue for some applications. For example, parts that require further processing (such as powder coating or paint) first require a post-laser cutting surface treatment before receiving the necessary coating or paint. Adding this step increases turnaround time and total processing costs.

Over time, laser cutting can reduce maintenance and material costs, and for some manufacturing applications, it may be more cost-effective to use other cutting processes. For example, while both metallic and non-metallic materials can be laser-cut, laser-cutting plastic releases potentially harmful and toxic gases. These emissions require air pollution control equipment, thus increasing the cost of the necessary equipment. Although the cost of replacing and maintaining parts is relatively low for manufacturers and repair shops, the initial investment in laser cutting equipment is often higher than for more traditional cutting processes. In addition, laser cutting equipment typically consumes more power and energy than other cutting processes, resulting in further increases in operating costs. In general, the initial equipment and operating costs of laser cutting are high and are not suitable for low-budget operations.