How to set the cutting speed of fiber laser cutting machine?

How to set the cutting speed of fiber laser cutting machine?

Although the cutting speed of fiber laser cutting machine is much faster than other methods, it should be controlled in a reasonable cutting speed range, too fast or too slow is not good. The cutting speed of laser cutting machine is very important. It has a great influence on the cutting quality of stainless steel plate. The best cutting speed makes the cutting surface smooth and has no slag in the lower part.

If the cutting speed of optical fiber laser cutting machine is too fast, it will lead to steel plate can not be cut through, spark splash, slag in the lower part, and even burn lens. This is because the cutting speed is too high, the energy obtained per unit area is reduced, and the metal can not completely melt.

If the cutting speed of fiber laser cutting machine is too slow, it is easy to cause material overmelting, widening the slit, increasing the heat-affected zone, or even overheating of the workpiece. This is because the cutting speed is too low, energy accumulates at the slit, resulting in widening the slit, the molten metal can not be discharged in time, and slag is formed on the surface of the steel plate. A cutting defect is produced as shown in the following figure.

Relation between Cutting Speed and Cutting Quality of Fiber Laser Cutting Machine

The cutting speed of the fiber laser cutting machine and the output power of the laser together determine the input heat of the processed parts. Therefore, the relationship between the change of input heat and the quality of processing caused by the increase or decrease of cutting speed is the same as that of output power. In general, when adjusting the processing conditions, if the purpose is to change the input heat, the output power and cutting speed will not be changed at the same time, just fix one of them and change the other to adjust the processing quality.


More info:
Website: www.sublistarlaser.com
Company Name: Fei Yue Digital Technology Co.,LTD
Tel: 86-025-86628894
E-mail: sales@sublistarlaser.com
Address: Central Road 323, Nanjing, Jiangsu, China

What are the common accessories of fiber laser cutting machine?

What are the common accessories of fiber laser cutting machine?

There are many common parts of fiber laser cutting machine, which can be replaced according to the use time and loss.Many processing manufacturers in order to ensure production efficiency, generally will prepare a lot of accessories, to ensure the normal operation of the fiber laser cutting machine, in case of emergency. Accessories need to be replaced frequently, because the use of fiber laser cutting machine, will cause some accessories loss, we introduce these accessories to you.

1. Reflection lens: in a typical laser system, there may be only one or two transmission optical elements, which are usually used as the output mirror of the laser cavity and the focus lens at the end. On the other hand, in some other laser systems, there may be five or more reflective lenses. The reflective lens is used as the tail mirror and the refractive mirror for the beam steering in the laser cavity and in the beam transmission system.

2. Beam expanding lens: beam expanding lens is a lens assembly that can change the diameter and divergence Angle of laser beam.

3. Protective lens: the main function of laser protective lens is to prevent debris splash, prevent splash damage to the lens, and coat both sides with anti-reflection film with high damage threshold to reduce reflection. (the replacement time cycle of these lenses is generally about 3 months, which is more determined by the actual processing situation).

4. Copper nozzle: it can help gas spewing out quickly and effectively prevent sundries such as melting stains from bouncing up, thus protecting the focusing mirror. At the same time, it can control the area and size of gas diffusion, which will affect the cutting quality of laser cutting machine. At the same time, the diameter of the nozzle will vary according to the thickness of the cutting material. The replacement period is about two months.

In addition to fiber laser cutting machines, our official website also offers CO2 laser cutting machines. Complete range, high quality and low price.

How to control the speed of fiber laser cutting machine?

How to control the speed of fiber laser cutting machine?

In the use of fiber laser cutting machine, many people will think that the faster the better cutting speed, speed can improve the efficiency of work. And can also create greater economic benefits, in fact, otherwise, the speed of the fiber laser cutting machine is controlled in a certain range, so how can we effectively control the speed of the laser cutting machine?

The cutting speed of the fiber laser cutting machine is too fast, which will lead to the failure of cutting, spark random spraying, oblique lines appear on the cutting surface, and the lower half of the welding stain, the whole section is thicker, but no welding stain produces and so on, which will affect the precision and quality of cutting plate. Therefore, we should control the cutting speed of the post-fiber laser cutting machine. The following are three Suggestions we give.

It is suggested that at least three optical fiber laser cutting machine lathes and turning centers can be used.

X and Z axis feeding and fast feeding, fast and smooth. High precision and low back clearance planetary gear reducer is used with precision ball screw to reduce the mechanical failure rate and improve the precision. Servo control of high and low file conversion device to shorten the time, fast and smooth transmission.

Two, fiber laser cutting machine digital grinder and discharge processing machine can use at least three more.

X, Y, Z axis with smooth, so that the parameters of the controller is more simple to set, so that the finished product to get high precision, arc contact smooth, and reduce the surface roughness.

Three, fiber laser cutting machine processing center and CNC milling machine can be used at least four more.

X and Y axis feeding and fast feeding can increase feeding smoothness, reduce noise and reduce the cost of servo motor. The high torque makes it easier to control, although the load is different, but does not affect its feeding smooth. The load of the Z axis is completely different due to the gravity. The high precision and low backspace planetary gear reducer can reduce the load of the servo motor and increase the service life of the machine. Tool changing mechanism requires fast, accurate positioning, low vibration, high precision and low back clearance planetary gear reducer is still the best choice.