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Carbon steel fiber lazer cutter 3000w power – Jill

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Carbon steel fiber lazer cutter 3000w power

Carbon steel fiber lazer cutter 3000w power.

Generally, will burn the material. Possible reasons as below.

(1) The laser focus position is offset, and the focus position test is performed, and the offset is adjusted according to the offset of the laser focus.

(2) The output power of the laser is not enough. It is necessary to check whether the work of the laser generator is normal. If it is normal, observe whether the output value of the laser control button is correct, if it is not adjusted properly.

(3) The cutting line speed is too slow, and it is necessary to increase the line speed during operation control.

(4) The cutting gas is not pure enough to provide high quality cutting working gas

(5) The instability of the machine tool running time is too long. At this time, it needs to be shut down and restarted.

Laser not completely cut

The reason why the laser is not completely cut.

(1) The selection of the laser nozzle does not match the thickness of the processing plate, and the nozzle or processing plate is replaced.

(2) The laser cutting line speed is too fast, and the operation control is required to reduce the line speed.

Abnormal sparks when cutting low carbon steel.

When the low carbon steel is cut normally, the fire bouquet is long, flat, and has fewer splits. The occurrence of abnormal sparks will affect the smoothness and quality of the cut section of the work piece.

In this case, if other parameters are normal, the following should be considered.

Firstly,The laser head nozzle has serious loss, and the nozzle should be replaced in time.

Secondly, In the case of no new nozzle replacement, the working gas pressure should be increased.

Thirdly, If the thread at the joint between the nozzle and the laser head is loose, the cutting should be suspended immediately, check the connection state of the laser head, and re-thread the thread.

Finally,if you want to know some details,contact us.

And also,if for more questions just let us know.
Jill from XT LASER
E: xintian143@xtlaser.com
WhatsApp&Wechat&Mobile: +86 130 4603 3839
Skype: lasermachine01

Laser cutting machine daily maintenance points, common work problems and solutions–Winnie

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Fiber laser cutting machine is an advance equipment, the price is generally very expensive. Every few tens of millions, but its ultra-fast processing speed, favored by many processing industries. Then, want to make good use of fiber laser cutting machine Performance, what aspects should you pay attention to?  The fiber laser cutting machine also has a lot of places to pay attention to in daily maintenance. Pay attention to the following items to ensure the stable performance of the fiber laser cutting machine!

The maintenance of the laser cutting machine can roughly performe from the following aspects:

Fan cleaning:

The long-term use of the fan in the machine will cause a lot of solid dust to accumulate in the fan, which will make the fan generate a lot of noise, which is also not conducive to exhaust and deodorization. When the suction of the fan is insufficient, the fan must be cleaned.

Replacement of circulating water and tank cleaning:

Before the machine works, make sure that the laser tube is filled with circulating water. The water quality and temperature of the circulating water directly affect the life of the laser tube. Therefore, it is necessary to periodically change the circulating water and clean the water tank. This is usually done once a week.

Lens cleaning:

There will be some mirrors and focusing mirrors on the machine. The laser light is reflected and focused by these lenses and emitted from the laser head. The lens is easily stained with dust or other contaminants, causing laser loss or lens damage. So clean the lenses every day.

When cleaning, pay attention to:

1. The lens should be wiped gently, so as not to damage the surface coating;

2. Handle gently during wiping to prevent falling;

3. Please keep the concave surface down when installing the focusing lens.

Fastening of screws and couplings:

After the motion system works for a period of time, the screws and couplings at the motion joints will loosen, which will affect the smoothness of the mechanical movement. Therefore, during the operation of the machine, observe whether there are abnormal noises or abnormal phenomena in the transmission parts, and find the problems in time Robust and maintenance. At the same time, the machine should use a tool to tighten the screws one by one after a period of time. The first solidification is about one month after the equipment is used.

Rail cleaning:

Guide rails and linear shafts are one of the core components of the equipment, and their functions are to guide and support. In order to ensure the machine has a high processing accuracy, it is require that its guide rails and straight lines have high guiding accuracy and good motion stability.

During the operation of the equipment, due to the large amount of corrosive dust and fumes produce by the workpiece during processing, these fumes and dust have deposite on the surface of the guide rail and linear axis for a long time, which has a great impact on the processing accuracy of the equipment and will Corrosion spots are formed on the surface of the linear axis of the guide rail, which shortens the service life of the equipment. So clean the machine guides every half a month. Turn off the machine before cleaning.

Inspection of light path:

The optical path system of the machine is complete by the reflection of the mirror and the focusing of the focusing lens. There no offset problem in the focusing lens in the optical path, but the three mirrors are fixe by the mechanical part, and the possibility of offset is large.

Although there is usually no offset, it is recommende that users check whether the optical path is normal before each work.

The Most Neglected Details Of The Fiber Laser Cutter-Anne

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    The Most Neglected Details Of The Fiber Laser Cutter

Fiber laser cutter is a laser cutting machine using fiber laser generator as light source.

Optical fiber laser is a new type of optical fiber in the world.
which outputs high energy density laser beam and gathers on the surface of the workpiece.
which makes the workpiece melt and gasify the area illuminated by the ultrafine focus spot instantaneously.

However, fiber laser cutting machine is not omnipotent, no matter how perfect the equipment will also have its shortcomings, we should not only see its superior processing performance, but also pay attention to its own current limitations, such as processing material attribute restrictions, strict processing specifications, and so on.

First of all, the fiber laser cutting machine processing category.

Before the fiber laser cutting machine mainly belongs to the metal laser cutting machine processing category, so the main cutting metal, such as stainless steel, carbon steel, alloy steel, silicon steel, spring steel, aluminum, aluminum alloy, galvanized plate, acid washing plate, copper, silver, gold, titanium and other metal plate and pipe cutting.

But with the development of technology, the technology of non-metallic cutting in plastics, composites and plexiglass has also matured.

Secondly, fiber laser cutting machine does not recommend long-term cutting aluminum, copper and other rare metal materials, although the processing of these materials are really good.

but because these materials belong to high-reflective materials , the long-term action on these materials may affect the service life resulting in the subsequent processing effect is not good.

It will also increase the use of consumables.

Finally, the laser cutter is based on its high power Small difference, cutting thickness also changes.

The greater the power, the greater the cutting thickness;

The thinner the metal material, the faster the cutting speed. Tthe laser cutter for thin plate cutting advantage is very obvious.

Sales Manager:

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

How to improve fiber laser cutting quality of your machine?-Anne

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How to improve fiber laser cutting quality of your machine?

As we all know, the most important advantage of metal laser cutting machine is that it can greatly improve the cutting accuracy.

However, many customers have such problems during the actual use process, that is, only pay attention to the cutting speed, which will lead to the product quality can’t be effectively controlled.

So how to ensure the quality of laser cutting?XT LASER will share with you.

1.Preparation before cutting

In order to improve the cutting quality, it is necessary to carry out scientific and reasonable cutting design, review and repair the drawings before cutting.

2.During cutting

During the cutting process, in addition to adjusting the relevant parameters of the machine according to the material thickness, your operator should pay attention to the cutting quality of the sample. The batch cutting shall be carried out only after the sample printing quality is qualified enough.

3.Correct adjustment of focus position

Adjust the position of focus according to the material and thickness of the cut.

Usually thin carbon steel below 5mm, with zero focal length and focus on the surface of the workpiece,aluminum, stainless steel and other workpiece focus on the surface of the workpiece,when cutting thick carbon steel plate, the focus is on the surface of the workpiece.

4.Adjust assist gas pressure data

When cutting at a faster speed, the stability of gas pressure has a great influence on the cutting burr.

According to the data parameters , to ensure the quality after cutting we can adjust the best gas pressure.

Hope it is helpful for you. If you have any questions,welcome to contact us.

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

Process principle of laser heat treatment—Winnie

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Process principle of laser heat treatment

Speaking of laser heat treatment, we should all be familiar with it, because we have all heard of it. In fact, the laser heat treatment technology, as a technology that replaces high-frequency heat treatment. Is not only suitable for industrial fields, such as stamping dies, injection molds, auto parts, etc.,

But also for a wide range of fields such as shipbuilding, steel, machinery, and electronics. Applicable Yuanwei has gradually expanded to many fields that require local heat treatment to improve product hardness and strength.

What is the Heat treatment?

„Heat treatment“ refers to a method of modifying the structure or properties of a metal material in various ways by heating it to a metal material.

Although calendering heat treatment technology is similar to existing high-frequency heat treatment methods in inducing changes in surface texture. Laser heat treatment methods There are more advantages, for example, after the laser heat treatment. The dimensional change of the base material is almost zero. And the surface hardness becomes higher due to the formation of a denser structure without additional cooling engineering. The laser heat treatment technology can also target the required Selective heat treatment of parts. Such as three-dimensional shaped mechanical parts and mold products, cutting edges, etc.

At the same time, by using a pyrometer to measure and control the surface temperature of the base material in real time. It can use in large batches of small batch production projects. Obtain stable heat treatment quality.

How is the Heat treatment?

After laser heat treatment, the surface hardness will vary according to the carbon content of the base material, usually maintained at a level of> 5365Hc, the effective hardening depth is about 0.8 ^ 1.5m, and the hardening range is adjusted to a few millimeters to several millimeters according to the laser power. Ten millimeters. Until the beginning of 2000, carbon dioxide lasers were mainly use for laser heat treatment projects, but with the development of a variety of high-power lasers, high power with higher absorption of metal materials favore, including semiconductor lasers and discs. Lasers and fiber lasers are heat-treate to improve the hardness and strength of products.

In terms of the basic principle of laser metal heat treatment technology, by irradiating a high-energy-density laser beam on the surface of a metal material, the temperature of the base material sharply increase until the base material is about to reach the warmth of the kitchen, and it is rapidly cooled again. This induces tissue changes on its surface. The laser chirp irradiate on the surface of the base material will converte into thermal energy, which will heat the surface of the base material, and reduce the temperature again by utilizing the heat conduction characteristics of the base material, and finally increase the hardness and strength of the material.

The main features of laser heat treatment—Winnie

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The main features of laser heat treatment

With the continuous development of society and economy, science and technology change with each passing day. Laser heat treatment is more and more widely use in our daily life. But many people do not know much about laser heat treatment. In fact, laser heat treatment is a surface heat treatment technology.  A high-energy laser beam use to quickly scan the workpiece. So that the surface temperature of the irradiated metal or alloy rises above the phase transition point at an extremely rapid rate. When the laser beam leaves the irradiated site, Heat conduction effect. The matrix in the cold state allows it to cool quickly and perform self-cooling quenching to obtain a finer hardened layer structure. And the hardness is generally higher than the conventional quenching hardness. The following are the main features of laser heat treatment.

(A) directional light

Ordinary light sources emit light in all directions. To make the emitted light propagate in one direction. A certain light-condensing device needs to installe on the light source. For example, the headlights and searchlights of a car are both equippe with a light-concentrating reflector, so that the radiated light is collecte and emitte in one direction. The laser light emitted by the laser is naturally emitted in one direction. The divergence of the beam is extremely small, only about 0.001 radians, which is close to parallel. In 1962, humans used a laser to illuminate the moon for the first time.

The distance between the earth and the moon was about 380,000 kilometers, but the laser spot on the surface of the moon was less than two kilometers. If the focusing effect is very good, the seemingly parallel searchlight beams will hit the moon and cover the entire moon according to its spot diameter.

(Two) extremely high brightness

Before the invention of the laser, the brightness of the high-voltage pulsed xenon lamp in the artificial light source was the highest, which was comparable to the brightness of the sun, and the laser brightness of the ruby ​​laser could exceed the xenon lamp by several tens of billions. Because the laser is extremely bright, it can illuminate distant objects.

The light emitte by a ruby ​​laser on the moon produces an illuminance of about 0.02 lux (a unit of illumination), the color is bright red, and the laser spot clearly visible. If the most powerful searchlight is used to illuminate the moon, the resulting illuminance is only about one trillionth of a lux, which is impossible for human eyes to detect. The main reason for the extremely high laser brightness is directional light emission. A large number of photons are concentrated and emitted in a very small spatial range, and the energy density is naturally extremely high.

(Three) the color is extremely pure

The color of light determine by the wavelength (or frequency) of the light. A certain wavelength corresponds to a certain color. The wavelength range of visible light emitted by the sun is between 0.76 nanometers and 0.4 nanometers. Corresponding colors are 7 colors from red to purple, so the sunlight is not monochromatic. A light source emitting a single color of light is called a monochromatic light source, and the wavelength of the light wave it emits is single. For example, krypton lamps, helium lamps, neon lamps, hydrogen lamps, etc. are all monochromatic light sources and emit only a certain color of light. Although the light wavelength of a monochromatic light source is single, it still has a certain distribution range.

For example, the neon lamp emits only red light, which has good monochromaticity, and know as the crown of monochromaticity. The wavelength distribution range is still 0.00001 nanometers. Therefore, if the red light emitte by the neon lamp carefully identifie, it still contains dozens of red . It can see that the narrower the wavelength distribution interval of light radiation, the better the monochromaticity.

(4) Extreme energy density

The photon energy calculate using E = hv, where h is the Planck constant and v is the frequency. It can see that the higher the frequency, the higher the energy. The laser frequency range is 3.846 × 10 ^ (14) Hz to 7.895 × 10 ^ (14) Hz.

The above points are the main features of laser heat treatment in daily life. I hope it can be helpful to everyone.

How to do when the cutting effect is not good-fiber laser cutting machine- Cathy

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cutting effectHow to do when the cutting effect is not good-fiber laser cutting machine- Cathy

1.The parameters affect the cutting effect include:

cutting height, nozzle model, focus point position, cutting power, cutting frequency, cutting duty ratio, cutting pressure and cutting speed. Hardware conditions include: protective lens, gas purity, sheet quality, focus lens and collimation lens.

2.When cutting effect is not good, first we should do the general inspection, the main inspection contents and order of the general inspection are: 

Cutting height.

We recommend the actual cutting height be between 0.8 and 1.2 mm. If the actual cutting height is not accurate, you should calibrate it.

Nozzle.

Check if the nozzle model and size are wrong. If it is correct, check if the nozzle is not good and the roundness is normal.

Light Center.

We recommend to use a nozzle with a diameter of 1.0 for optical center inspection. When checking the optical center, the focus point is better between -1 and 1. So the light spot produced is small and easy to observe.

Protective lens.

Check the protective lens whether is clean. The requirement are no oil and no slag. Sometimes the lens is fogged because of the weather or the air is too cold.

Focus point check.

Check if the focus point is set correctly.

Modify the cutting parameters.

After checked the above five items  and there are no problems, modify the parameters according to the phenomenon.

3.Then how to modify the cutting parameters? Below briefly introduce few states will have and solutions when cutting stainless steel and carbon steel 

When meet stainless steel slag, their are many type slags:

only the corner slag, you should lower the focus point and increase the pressure from the parameter.

hard slag on whole material, you need to lower the focus point, increase the air pressure, and change to bigger nozzle, but the focus is too low or the air pressure is too large, also will lead to stratification and rough surface.

granular soft residue on whole material, you can appropriately increase the cutting speed or the cutting power.

slag on lower surface of the sheet, you can check whether the gas supply still enough and the flow still strong.

When cutting carbon steel, the problem may have thin plate cutting edge not smooth, thick plate cutting edge rough.

Generally, no more than 4 milometer carbon steel edge can be smooth with 1000 watt laser, 2000 watt is 6 milometer, 3000 watt is 8 milometer.

Want the cutting edge smooth, the surface of the plate  should be rust-free, lacquer-free and non-oxidized. Then the oxygen purity should be higher than at least 99.5%. When cutting, you should pay attention to: use double layer small nozzle 1.0 or 1.2, cutting speed should be more than 2 meters/min, and the cutting pressure should not be too large.

If you want good quality thick plate cutting edge, you must first ensure the purity of the plate and gas. Secondly you should pay attention to the nozzle selecting. The larger the hole diameter, the better the quality of the edge, but the taper of the edge will be larger.

 

How to improve the cutting precision of laser cutting machine?–Winnie

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How to improve the cutting precision of laser cutting machine?–Winnie

Around the 1970s, laser cutting technology was first applied in modern industrial production. In the subsequent development, laser cutting technology was gradually applied in sheet metal processing, plastic, glass and other materials cutting. Becoming an indispensable and important process in industrial production.

Generally, the factors of affecting the cutting quality mainly include the following aspects. Firstly, the size of the spot after the laser beam is focusing; Secondly, the positioning accuracy of the work table;The third is the thickness of the workpiece;The fourth is the workpiece material.The smaller the laser beam spot, the higher the precision of the workbench, the thinner the workpiece thickness, the more conducive to improve the quality of cutting.

Firstly, it is necessary to achieve accurate control of the focus

– The smaller the focal depth of the focusing lens is, the smaller the spot at the focal point will be. Therefore, the focal position can be effectively controlle on the metal surface to improve the cutting quality.

Secondly, the cutting and piercing technology is optimize

– Because the laser cutting machine belongs to thermal cutting, it is also necessary to penetrate a small hole in the metal plate, and then the laser beam begins to cut the plate at the small hole.

Thirdly, optimize nozzle design and flow control technology

– During the processing of sheet metal by laser cutting machine,

oxygen is squeezing by nozzle and acted on the surface of the material by laser beam. The basic requirements for airflow are large flow rate and fast speed, so as to ensure that there is enough oxygen and material thermal reaction. At the same time, there is enough gas flow to blow away the slag.

The above content is the main method to improve the cutting quality of laser cutting machine. In fact, laser cutting machine still has a lot of unique use skills, which are relating to the improvement of cutting quality. Here, we remind customers to pay attention to learning, keep abreast of the latest industry trends, and improve the performance of the machine.

 

What is laser cutting, laser cutting machine and fiber laser cutting machine？—Winnie

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What is laser cutting, laser cutting machine and fiber laser cutting machine？

1. laser cutting

Laser cutting refers to the use of a focused high-power-density laser beam to illuminate a workpiece. Causing the irradiated material to rapidly melt, vaporize, ablate, or reach a burning point. While cutting the molten material by means of a high-speed airflow coaxial with the beam, thereby cutting the workpiece.

Laser cutting is one of the hot cutting methods. It works by directing the output of a high-power laser most commonly through optics. The [laser optics] and CNC (computer numerical control) are used to direct the material or the laser beam generated.

There are three main types of lasers in laser cutting. The CO2 laser is using for cutting, boring, and engraving. The neodymium(Nd) and neodymium yttrium-aluminium-garnet (Nd:YAG) lasers are identical in style and differ only in application.

Nd is for boring and where high energy but low repetition . The Nd:YAG laser use in where need very high power and for boring and engraving. Both CO2 and Nd/Nd:YAG lasers can be used for welding.

2. Laser cutting machine

According to the different laser generators. The more conventional laser cutting machines on the market can be roughly divided into three types. CO2 laser cutting machine, YAG (solid) laser cutting machine and fiber laser cutting machine.Among them. CO2 laser cutting machine is more suitable for non-metal.

It can cut non-metallic materials such as wood, acrylic, PP and plexiglass with high quality, but the photoelectric conversion rate of CO2 laser is only about 10%, which is a waste of resources. Uniformly cut special parts, advertising, decoration and other non-metallic materials with a thickness of not more than three millimeters and a non-metallic material of not more than twenty millimeters are more suitable for CO2 laser cutting machines.

The machining of workpieces with complex cutting contours but small quantities is also suitable for CO2 laser cutting machines, which saves the cost and cycle of manufacturing molds.

YAG (solid) laser cutting machine has the characteristics of low price and good stability, but the energy efficiency is generally less than 3%. At present, the output power of the product is mostly below 800W. Due to the small output energy, it is mainly  for punching and thin plate cutting.

3. fiber laser cutting machine

Fiber laser cutting machine is a laser cutting machine which uses fiber laser generator as light source.

It is a new type of fiber laser which produces high energy density laser beam and gathers on the surface of the workpiece. It can melt and gasify the area illuminated by the ultra-fine focus spot instantaneously, and realize automatic cutting by moving the spot illumination position through the numerical control mechanical system. Compared with gas lasers and solid-state lasers, they have obvious advantages.

They have gradually developed into important candidates in high-precision laser processing, lidar systems, space technology, laser medicine and other fields. Optical fiber laser cutting machine can use for both plane cutting and oblique cutting, and its edge is neat and smooth. It is suitable for high precision cutting such as metal plate. At the same time, the mechanical arm can do for three-dimensional cutting instead of the original imported five-axis laser.

Compared with ordinary carbon dioxide laser cutting machine, it can save space and gas consumption, and has high photoelectric conversion rate. All in all, Fiber laser cutting machine is a new energy-saving and environmental protection product. (Reference: Wikipedia, 360 Encyclopedia)

Assist gas of fiber laser cutting machine of XTLASER-Luis

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  • When cut different metal materials, laser cutter needs different assist gas. And for different thickness of metals, it needs different air pressure and gas flow. That means to choose right assist gas and gas pressure are directly effect result of laser cutting.

    The assist gas can not only blow away the slag on metal material in time, but also cool the it and clean the lens.

  • 1. compressed air
    Air is suitable for cutting aluminum, non-metallic and galvanized steel plates. To some extent, it can reduce oxide film and save cost. It is generally use when cutting plate is not thick, and the requirement for cutting end face is not too high. It use in some products such as sheet metal case, cabinet, and so on.
  • 1. compressed air
    Air is suitable for cutting aluminum, non-metallic and galvanized steel plates. To some extent, it can reduce oxide film and save cost. It is generally use when cutting plate is not thick, and the requirement for cutting end face is not too high. It is use in some products such as sheet metal case, cabinet, and so on.
  • 3. oxygen
    Oxygen mainly plays a role of combustion support, it can increase the speed of cutting and the thickness of cutting. Oxygen is suitable for thick metal cutting, high speed cutting and extremely thin metal cutting. For example, such as some thicker carbon steel plates, oxygen can use. When cutting metals of different materials and thickness, choosing the suitable gas can help to shorten the cutting time and improve the cutting effect.