The Working Principle Of Laser Marking Machine

Laser marking machine is emerging high-tech machinery and equipment in recent years. Fiber laser marking machine has a wide range of applications, such as hardware products, precision equipment, electrical appliances, and many of the words on PVC pipes are marked with fiber marking machines. The laser fiber marking machine came out in just a few years and replaced most of the marking products on the market. Today, MYST Laser will introduce its working principle and unique advantages.

1. Basic principles:

Laser marking uses a laser beam to make permanent marks on the surface of various materials. The effect of marking is to expose the deep material through the evaporation of the surface material, or to "carve" traces through the chemical and physical changes of the surface material caused by light energy, or to burn off part of the material through light energy to show the required etching Patterns, text. CNC laser marking machines are mainly divided into CO2 laser marking machines, semiconductor laser marking machines, fiber laser marking machines, and YAG laser marking machines (obsolete).

2. Currently, there are two recognized principles:

"Heat processing" a laser beam with a higher energy density (it is a concentrated energy flow), irradiates the surface of the processed material

On the surface, the surface of the material absorbs the laser energy and generates a thermal excitation process in the irradiated area, so that the surface of the material (or coating

Layer) The temperature rises, causing phenomena such as metamorphosis, melting, ablation, and evaporation.

"Cold processing" (ultraviolet) photons with very high load energy can interrupt materials (especially organic materials) or

The chemical bond in the surrounding medium causes the material to undergo non-thermal process destruction. This kind of cold processing has special features in laser marking processing.

It has a special meaning because it is not thermal ablation, but cold peeling that breaks the chemical bond without the side effect of "thermal damage".

Therefore, there is no heating or thermal deformation on the inner layer and nearby areas of the processed surface. For example, in the electronics industry, use an excimer laser to deposit a thin film of chemical substance on the base material and make a narrow groove on the semiconductor substrate.

3. Advantages of 3d laser marking machine:

1) Marking laser machine can be printed on different types of materials or different hardness materials such as metal, plastic, ceramic, glass, paper, leather, etc.;

2) Portable laser marking machine can be integrated with other equipment on the production line to improve the automation of the production line;

3) The mark is clear, durable, beautiful, and effective anti-counterfeiting;

4) Long service life and no pollution;

5) Low operating cost

6) The marking speed is fast and the marking is formed at one time, with low energy consumption and low operating cost.

4. Application of laser marking machine:

Laser marking machines are mainly used in some occasions requiring finer and higher precision. Used in electronic components, integrated circuits (IC), electrical appliances, mobile communications, hardware products, tool accessories, precision equipment, glasses and watches, jewelry, auto parts, plastic buttons, building materials, PVC pipes.

How To Effectively Control The Cost Of Using Laser Cutting Machine?

In many cases, if you do not control the cost of using the 3015 laser fiber cutting machine, it will incur more costs, so this is an important reason why users hope to have some methods to control its cost. Let’s take a look together. How to control the cost of 3d fiber laser cutting machine operation.

Nearly 80% of the use cost of laser for cutting metal machines comes from the consumption of gas. As the main energy supply for fiber laser cutters CNC laser cutting machines and manual gas cutting equipment, familiarity and understanding of the gas application principles of optical fiber laser cutting machines will help reduce the cost of gas usage.

In this regard, MYST Laser has passed many debugging experiences of CNC laser metal cutter equipment, and summarized the relevant knowledge and experience as follows:

First of all, you must be able to adjust the flame skillfully. The first problem is to ensure that the cutting of the billet is normal. If the automatic cutting cannot be successfully completed, you must manually use the manual cutting gun to re-cut again, which causes waste, and manual cutting cannot guarantee the cutting quality Intact. By solving some abnormal phenomena and cutting effects of CNC laser cutting machine metal processing, such as "constant open flame", try to avoid ignition without cutting to avoid gas waste, and prevent gas leakage on joint pipes everywhere to avoid Waste; in addition, we must actively promote and test new technologies and new products, highlighting the emergence of new products in the cutting nozzle, the "flame" is more perfect, the cutting effect is improved, the cutting seam is small, and the gas consumption is relatively low.

With the increase in the amount of steel used in related industries, flame-cutting has become an indispensable link in the production and processing of more and more companies. For flame-cutting, in addition to ensuring the necessary cutting accuracy, how to effectively Reducing production costs and controlling gas consumption are becoming the concerns of most companies.

In terms of the relevant experience in the use of CNC laser cutting machine steel equipment we talked about above, only some of the problems involved in the details of the operation, from a large perspective, enterprises want to effectively reduce the cost of equipment use, but also need to learn from the flame Start with the principle of gas cutting. Flame cutting, also called gas cutting, is a process of burning with oxygen/gas flame.

In the first step, the temperature of the steel plate must rise to the ignition point. Then, the oxygen stream oxidizes the metal in the long and narrow area, and the slag generated during combustion is blown away by the cutting oxygen stream to form a slit. Oxygen gas cutting can be used for carbon steel and low alloy steel, and the thickness can reach several decimeters.

The cutting quality depends on the surface condition of the material, cutting speed, and material thickness. The typical thickness of flame cutting is recommended to be in the range of 6-150MM, which is also the thickness of the cutting machine that can be achieved by the current CNC fiber laser cutter; but flame cutting is the largest cutting method among many cutting methods, generally, if the cutting thickness is high When the thickness is typical, the gas path of the cutting machine, the cutting gun, the amount of oxygen and gas must be changed, and the steel cannot be cut through if the power fails to meet the requirements.

The above is some experience in the application of automatic laser cutting machine. However, to use the automatic laser cutting machine well, you first need to master the flame of the cutting torch. The key to adjusting the flame is the gas source. Most of the oxygen on-site are the pipeline oxygen. The purity and pressure of the oxygen can generally meet the requirements for use, but there is more gas. For bottled gas supply, a 30 kg bottle of gas, on the scale of 5 machines and 5 streams, the use time is about 2 hours. In this way, the gas source must be replaced in the middle, which will cause large fluctuations in gas pressure and directly affect the gas flow. , Resulting in abnormal cutting.

In addition, to ensure that the current equipment is in good condition, usually based on the operating regulations, regularly check for leaks in pipelines, joints, etc., lubricate the bearings, pinholes, etc., clean the cutting nozzles, cooling water pipes, etc., and complete the routine Only procedural work can ensure normal operation, and then improve and improve the effect. Considering the specific equipment, large-scale flame gas cutting, such as a strip CNC laser cutting machine, is generally equipped with more than ten sets of flame cutting torches. Generally speaking, the straight-line laser cutting machine (multi-head laser cutting machine) is divided into the following three types, all of which are used for steel plate cutting.

1. The simplest straight strip laser cutting machine can evenly divide the steel plate into strips. It is simple and practical, low in price, and has a good sales volume.

2. In addition to the simple steel straight bar cutting function, a flame cutting gun is added in the horizontal direction, so it can cut straight bars and cut straight bars. The function is stronger. However, in most cases, users are in order to save costs. , Often also manually cut off. This cost is more expensive than the first.

3. CNC straight bar laser cutting machine, this is currently the most powerful and the most advanced, so the price is also the most expensive. In addition to the main functions of 1 and 2 types, there are also powerful CNC special-shaped cutting Function, it can be equipped with CNC flame and CNC plasma cutting, becoming the most complete CNC flame plasma straight cutting machine.

In addition to sharing how to control the cost of the CNC laser steel cutting machine, the above content also introduces some of its use principles, hoping to help you.