How to Choose the Right Model of Laser Cutting Machine?

In recent years, laser cutting technology is growing at an unprecedented rate, growing at a rate of 15% to 20% every year. Since 1985, China has grown at a rate of nearly 25% per year.

Compared with traditional acetylene, plasma and other cutting processes, the laser cutting speed is fast, the slit is narrow, the heat affected zone is small, the edge of the slit is good, the trimming is smooth, and there are many kinds of materials that can be laser cut, including carbon steel, stainless steel, alloy steel, wood, plastic, rubber, cloth, quartz, ceramics, glass, composite materials, etc.

With the rapid development of the market economy, science and technology, laser cutting technology has been widely used in the fields of automobiles, machinery, electric power, hardware and electrical appliances.

How Laser Cutting Equipment Works?

A laser is a kind of light that, like other natural light, is produced by the transition of atoms (molecules or ions, etc.). However, unlike normal light, the laser relies on spontaneous emission only in the initial very short time. The subsequent process is completely determined by the excitation radiation. Therefore, the laser has a very pure color, almost no divergent directionality, and extremely high luminous intensity, high coherence.

Laser cutting is achieved by applying high power density energy generated by laser focusing.

Under the control of the computer, the laser is discharged by pulse, thereby outputting a controlled repeated high-frequency pulsed laser to form a beam of a certain frequency and a certain pulse width. And the pulsed laser beam is transmitted and reflected through the optical path and focus on the surface of the processed object by the focusing lens group. Then subtle, high-energy-density spots are formed, and the focal spots are located near the surface to be processed to melt or vaporize the material to be processed at an instant high temperature.

Each high-energy laser pulse instantly sputters a small hole in the surface of the object. Under computer control, the laser head and the material to be processed are continuously moved relative to each other according to the pre-drawn pattern, so that the object is processed into The shape you want.

The process parameters (cutting speed, laser power, gas pressure, etc.) and the trajectory of the slit are controlled by the numerical control system, and the slag at the slit is blown off by the auxiliary gas of a certain pressure.

Choose the Right Model of Laser Cutting Machine

1. First, we must figure out the production range, processing materials and thickness of the cutting. So we can determine the type, format and quantity of the laser cutting equipment to be purchased, and make a simple preparation for the later procurement work.

Laser cutting machine applications include mobile phones, computers, sheet metal processing, metal processing, electronics, printing, packaging, leather, clothing, industrial fabrics, advertising, crafts, furniture, decoration, medical equipment and many other industries.

The main format of laser cutter in the market is 3015 and 2513, that is, 3m by 1.5m and 2.5m by 1.3m, but this is not a problem. Generally, the laser cutting machine company will provide a variety of formats for customers to choose from.

2. Professionals can carry out on-site simulation to solve or provide solutions, and also can take the materials to the laser cutter factory for proofing.

1) Cutting seam.

It is generally 0.10mm-0.20mm.

2) The cutting surface is smooth.

In general, there are some burrs using the YAG laser cutting machine, which are mainly determined by the cutting thickness and the gas used.

Generally, there is no burr under 3mm thickness. The gas of nitrogen is the best, the oxygen effect is second, and the air effect is the worst. The cutting surface from fiber laser cutting machines is very smooth and fast, with minimal or no burrs.

3) The deformation of the material should be very small.

4) Power.

For example, most of the buyer is to cut metal sheets below 6mm, so there is no need to buy high-power laser cutting machine.

500W fiber laser cutting machine can meet the production demand. If the production volume is large and you worry about 500W efficiency is not as good as a high-power one, the best choice is to buy two or more small and medium-power laser cutting machines, which will help customers in terms of cost control and efficiency.

5) The core part - laser.

The imported laser brand generally is IPG, while China brand is Raycus. At the same time, laser cutter other accessories also is important, such as motor, guide rail, bed, etc., which affect the cutting precision to some extent.

A special point to note is the cooling system of the laser cutting machine - cooling cabinets. Many companies use household air conditioners to cool them directly. The effect is actually bad. The best way is to use industrial air conditioners.

3. Any equipment will have different degrees of damage during use. In terms of repair after damage, whether the repair is timely and the charge is a problem that needs to be considered.

Therefore, before the purchase, the after-sales service of the laser cutting machine manufacturer should be checked out through various channels.

Advantages of Laser Cutting Machine

1. High precision

It is suitable for fine cutting of precision parts, various craft words and paintings.

2. Fast speed

More than 100 times the line cutting.

3. The heat affected zone is small and not easily deformed.

The slits are smooth and beautiful, and no post-processing is required.

4. High cost performance

The price is only 2/5 of the same performance CNC punch.

5. Low cost of use

6. Low follow-up maintenance costs

only 1/3 ~ 1 / 4 of the equivalent efficiency CNC punching machine.

7. Stable performance to ensure continuous production

8. Compared with CNC punching machine, YAG laser cutting machine has the following advantages:

(1) It can complete the processing of various complicated structures. It can complete the processing as long as any image can be drawn on the computer.

(2) No need to make the mold. If the figure is made on the computer, the product can be released immediately That is, the new product can be developed quickly, and the cost can be saved.

(3) YAG laser cutting machine has automatic tracking system, so it can complete plane cutting, and can also complete all kinds of uneven surface cutting.

(4) The CNC punching machine is difficult to complete complicated process requires, but laser cutter can do.

(5) The cutting surface is very smooth, the product grade is very high, which are difficult for CNC punching machine.

(6) The YAG CNC metal laser cutting machine can process the added holes of formed box (within 0.5m thick), but CNC punch can not solve it.