How to Maintain the Handheld Laser Welding Machine-Anne

How to Maintain the Handheld Laser Welding Machine

The hand-held laser welding machine has the advantages of simple operation, beautiful welding seam, fast welding speed and no consumables.

The laser welding can perfectly replace the traditional argon arc welding and electric welding in thin stainless steel plate, iron plate, galvanized steel plate and other metal materials welding.

Handheld laser welding is 2-10 times faster than conventional welding, and a machine can save at least 2 workers a year.The weld seam is smooth and beautiful, reducing the subsequent grinding process, saving time and cost. The laser welding workpiece has no deformation, no welding, and the welding is firm. Less laser welding consumables.

Manual operation and maintenance of hand-held laser welding machine

1.If We must train Hand-held laser welding machine operators to understand the use of system lights and buttons, familiar with the most basic equipment knowledge.

2.Check the working line slot before work, the wire is not damaged and exposed. It is can’t prohibit to place tools on the water cooler.
3.It is strictly forbidden to place liquid objects and flammable articles on the control cabinet. The temperature of the operation room must not exceed 25 ℃ no leakage and leakage.No leakage of air, water and electricity.

Maintenance of welding machine body.

1.Periodic testing.
2.Clean up the dust inside the welder regularly
3.Check the wiring of the electric power wiring regularly.
4.Replace defective parts during annual maintenance and inspection.Comprehensive repair work such as outer casing and insulation deterioration.

Regular Maintenance and inspection.

Regular Maintenance and inspection can reduce the occurrence of welding failure, extend the service life.

It can improve work efficiency, ensure the performance and safety of welding machine.

Hope it is helpful for you,if you have any questions,please feel free contact to us.

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

How to Purchase a High Quality Metal Laser Welding Machine

How to Purchase a High Quality Metal Laser Welding Machine

Metal laser welding machine is one of the most popular welding equipment today, characterized by mechanical intelligent processing, so more and more customers choose it.

There are some factors need to pay attention to when customers want to buy this machine.

XT LASER will tell you how to purchase a high quality metal laser welding machine.

1.Laser spot focusing diameter

Pay attention to the laser spot focusing diameter in the device, generally, due to the optical design of the laser generator, the laser spot diameter can be controlled within the range of 0.2mm to 1.5mm, this is a direct reflection of the equipment quality, if the laser spot diameter can not up to the standard 0.2mm, it will cause ablation of the weld seam directly.

2.Laser pulse frequency

Welding different materials need different laser pulse frequencies, the higher the frequency of laser pulse, the lower the per laser energy.

In this way, it can improve the welding toughness of the whole workpiece.

When choosing a laser welding machine, the user should first choose the equipment which can adjust the laser pulse frequency.

3.Laser pulse energy

The energy of laser pulse is one of the main parameters of laser generator.In general, the laser welding machine laser energy have to keep within 70J,then it can meet different materials welding

Hope it is helpful for you.If you have any confused of machine ,welcome to contact XT LASER.

Sales Manager:Anne Zhang

Mob.whatsapp.wechat:+8615098735595

Skype:amyzhang1321 Email:xintian121@xtlaser.com

Do you know the process parameters of Laser Welding Machine?-Anne

2020-02-14/in Industry news, laser welding machine /by Admin

Do you know the process parameters of Laser Welding Machine?

For now,the laser welding machine more popular in the market.However,do you know the process parameters of Laser Welding Machine?

Today,XT LASER will share some details with you:

(1) Power density.

Power density is one of the most critical parameters in laser processing.With a high power density, it can heate the surface layer to the boiling point within a microsecond time range, resulting in a large amount of vaporization.

Therefore, high power density is advantageous for material removal processes such as punching, cutting, and engraving. For lower power density, it takes several milliseconds for the surface temperature to reach the boiling point.

Before vaporize the surface layer, the bottom layer reaches the melting point, which is easy to form a good fusion weld.Therefore, in conductive laser welding, the power density is in the range of 10 ^ 4 ~ 10 ^ 6W / CM ^ 2.

(2) Laser pulse waveform.

The laser pulse waveform is an important problem in laser welding, especially for thin-plate welding. When a high-intensity laser beam is irradiated to the surface of the material, 60 ~ 98% of the laser energy is reflected and lost on the metal surface, and the reflectance changes with the surface temperature.

During a laser pulse, the reflectivity of the metal varies greatly.

(3) Laser pulse width.

Pulse width is one of the important parameters of pulse laser welding. It is not only an important parameter different from material removal and material melting but also a key parameter that determines the cost and volume of processing equipment.

(4) The influence of defocus amount on welding quality.

Laser Welding Machine usually requires a certain amount of defocus, because the power density in the center of the spot at the laser focus is too high, and it is easy to evaporate into holes.

The power density distribution is relatively uniform across the planes away from the focal point of the laser. There are two ways of defocusing: positive defocus and negative defocus.

The focal plane is above the workpiece for positive defocus, otherwise it is negative. According to geometrical optics theory, when the positive and negative defocus planes are equal to the welding plane, the power density on the corresponding planes is approximately the same, but the shape of the molten pool obtained is actually different.

With negative defocus, it can obtain greater penetration , which is also have relation with formation of the molten pool. Experiments show that laser heating of 50 ~ 200us material begins to melt, forming liquid metal and partial vaporization, forming high-pressure steam, and ejecting at extremely high speed, emitting dazzling white light.

At the same time, the high-concentration vapor moves the liquid metal to the edge of the molten pool, forming a depression in the center of the molten pool. When negative defocusing, the internal power density of the material is higher than the surface, and it is easy to form stronger melting and vaporization, so that the light energy is transmitted deeper into the material.

Therefore, in practical applications,if need large penetration depth, we can use negative defocus; when welding thin materials, it need to use positive defocus

(5) Welding speed.

The speed of the welding speed will affect the heat input per unit time.

If the welding speed is too slow, the heat input will get too large, which will cause the workpiece to burn through.If the welding speed is too fast, the heat input will get too small, which will cause the workpiece to get opaque.

Hope it is helpful for you.If you have any questions ,please feel free contact us.

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

Features and operation cost for handheld fiber laser welding machine-Anne

2020-01-10/in laser welding machine /by Admin

Features and operation cost for handheld fiber laser welding machine

Considering our customers‘ concerns, i ‚d like to share with you some features and operation cost of the handheld fiber laser welding machine.

This machine is easy to operate and the maintenance cost is also very low.
1. There is no need to installation for the handheld laser welding machine, our customers can use it directly after receiving the machine.

It is very easy to operate, there is no installation and training cost. We have manual and operation video for our customers and aslo provide video call training, we can make sure that our customers can use this machine within 3 days for free.

2. The quickly-wear parts for the handheld fiber laser welding machine are only protective lens and copper nozzle.

And if you buy them from us, we can give you the cost price, USD10 for copper nozzle(lifetime is 360 hours) and USD8 for protective lens(lifetime is 240 hours).

3. Compared with the traditional welding, like tig, handheld fiber laser welding machine no need to use welding wire, only when the gap more than 0.5mm, we should use the wire feeder.

4. The maintenance for this machine is very easy, when finish your welding work, turn off the power and clean the welding head, it can make the lifetime of protective lens and copper nozzle longer.

5. Except the quick-wear parts, the machine also consume electricity and gas.
The power consumption of 1kw machine is 11kw to 12kw/hour at full power situation.In fact, we usually just use 50%-60% power of 1000w to weld the metals, it is enough, so the power consumption is small.
The machine aslo need to connect with gas, argon or nitrogen. The gas can isolate the air from the welding plate to prevent the reaction with the air.

So the welding surface of the metal plate will be white and beautiful.

The gas also can protect the lens from welding dust. The price of the gas is different in different counties and regions, if our customers think the cost of the gas is too high, they can use air compressor to produce air gas.

But the welding effect will not very good, the welding surface of the metal may be black, so our customers should wipe the surface of the metal with ethyl alcohol.

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

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595 Skype:amyzhang1321 Email:xintian121@xtlaser.com

Precautions for Fiber Laser Welding Machine-Anne

2020-01-06/in Industry news, laser welding machine /by Admin

Precautions for Fiber Laser Welding Machine

1, with the relevant staff.

The person in charge must have relevant knowledge and experience in laser and welding machine.

The person in charge should not only be in charge of the safety lock key and password of the welding machine, but also instruct the operator on how to use the welding machine and teach the relevant safety knowledge.

2, the establishment of a dedicated laser welding area.

The relevant responsible person is responsible for the establishment of a special laser welding area (with a fence and other similar devices separated from the other work area), while in the welding area to set up „loitering personnel prohibited near“ and other related signs.

3, the welding machine installed in a level, a solid place, not on the tilt of the place.

This welding machine uses three-phase AC 380V (50 ~ 60Hz) electricity.

4, the ambient temperature of 5 ° C-30 ° C humidity of not more than 85% of the environment in the use of the welding machine, the ambient temperature should not fluctuate too much.

Do not use the machine under the following conditions:
– There is dust, oil pollution of the environment.
– A vibrating environment.
– Corrosive environment.
– High-frequency noise environment.
– Humid environment.
(CO 2, NOx, or SOx) in atmospheres containing high concentrations of carbon, nitrogen and sulfur oxides.

5, in the winter if the ambient temperature dropped below 0 ° C, the water tank will be frozen, the water tank may crack.

Therefore, special care in the winter to ensure that the ambient temperature of the welding machine not less than 0 ° C. If the ambient temperature is below 0 ° C, drain the water from the tank and refer to the relevant section.

6, if the ambient temperature changes in the YAG laser rods and lenses will form water vapor, which will affect the use of welding machines.

Therefore, as far as possible to prevent the dramatic changes in ambient temperature. If the water vapor has been formed, then the machine must be warmed up after a while and then use the machine.

7, if the welding machine chassis stain or water, please use a dry cloth or wet cloth dry.

If the stain is not clean, neutral detergent or alcohol can be wiped clean. Do not use gasoline or paint thinner to wipe the machine.

8. It is forbidden to place screws or coins on the inside or outside of the welding machine, which may cause a short circuit and damage the machine.

9, please gently operate the button, do not use a screwdriver and other tools to touch the button.

In particular, do not use sharp things touch the touch screen, this will cause permanent damage to the touch screen (with your fingers or a dedicated touch pen touch screen operation).

10, buttons and switches do not continuous operation, to ensure that only one click at a time.

Repeated switches affect the life of the machine.

11, control box and welding machine is connected with the connection between the lines.

After removing it, make sure that all connections have been restored before the next use. At the same time, do not let the cable block the fiber.

12. Do not bend the fiber to less than its minimum bend radius.

Hope these information is helpful for you.if you have any confused of machine,welcome to contact to us.

Sales Manager:Anne Zhang

Mobile.whatsapp:+8615098735595

Skype:amyzhang1321

FAQ for handheld fiber laser welding machine-Anne

2019-12-19/in Industry news, laser welding machine /by Admin

FAQ for handheld fiber laser welding machine

Now handheld laser welding machine more popular in the market.However most of customers asked some question about machine.

To help you know more about laser welding machine,so we will share some information with you:

Q1: I want to weld stainless steel and mild steel, how to choose which laser power suitable for me?

A1: Which welding method you want to weld? But welding or vertical welding?
Following are the welding parameters for your reference, please have a look.

Q2: What gas can be used on the 1KW handheld laser welding machine? Is the gas used as a shielding gas for the metal?

A2: Usually Argon gas and Nitrogen gas used as a shielding gas. It is used to protect the welding part from turning black.
Use the shielding gas can make the welding part with nice welding effect, no need to do further polishing process again.

Q3: What material would i use Argon and which material would i use Nitrogen?

A3: Actually both Nitrogen and Argon can used for all materials. Like: Stainless steel, mild steel, carbon steel, iron, aluminium, brass, etc. You can choose to use Nitrogen or Argon as shielding gas according to your market price.

Q4: There is a water cooler in the welder, Can it be filled with tap water ?

A4: The best way is to use purifed water and distilled water for the machine. As we know that if the tap water have some impurity inside, the machine can not get good environment water for cooling.
If long time do it like this way, the machine laser source and welding head life time will be shortly than using purified water or distilled water.
If the water is not purified, the welding head and laser source easy broken. Because impurity have some unknown materials.
The water chiller cooling for 1000W laser source and welding head both of them belongs to optical technology.

Hope it is helpful for you .If you have any questions of machine,welcome to contact XT LASER.

Sales Manager:Anne Zhang

Mob.whatsapp:+86145098735595 Skype:amyzhang1321 Email:xintian121@xtlaser.com

6 factors will effect the effect of laser deep penetration welding (I)-Anne

2019-12-11/in Fiber Laser Cutting Machine, Industry news /by Admin

6 factors will influence the effect of laser deep penetration welding

Deep penetration, or deep penetration welding.Common for welding thicker materials with high laser power.

In deep penetration welding, the lasers are focused together to create a very high power density on the workpiece.

In fact, the spot where the laser beam is focused will vaporize the metal, causing a blind hole (ie, deep penetration) to appear in the molten metal pool. The metal vapor pressure will block the surrounding molten metal, so that the blind hole is always open during the welding process.

The melt at the vapor-melt boundary and deep-melt hole walls will absorbed laser power.

The focused laser beam and deep penetration holes move continuously along the welding trajectory.

The welding material melts in front of the deep penetration hole and solidifies again at the back to form a weld.

so laser welding machine .
The factors that affect the effect of laser deep penetration welding are:

1.Laser power density

so laser welding machine .
The premise of deep penetration welding is to focus the laser spot so that it has a sufficiently high power density, so the laser power density has a decisive influence on the weld formation. Laser power controls both penetration depth and welding speed. For a laser beam of a certain diameter, when increase the laser power, the penetration get more deep and the welding speed get more accelerate.

There is generally a critical value for the laser power to reach a certain welding penetration. When it is reach critical value, the molten pool boils violently, and when exceed it , the penetration depth will decrease sharply. In addition, due to the action of metal vapor, small holes will form in the molten pool, and the small holes are the key to the realization of deep penetration welding.

The focal spot power density is not only proportional to the laser power, but also related to the laser beam and focusing optical path parameters.

so laser welding machine .
2. Welding speed

so laser welding machine .
During deep penetration welding, the welding speed is inversely proportional to the penetration. and when maintain laser power , if increase the welding speed, it will reduce the heat input and the penetration depth.

so laser welding machine .
3. Focus position

so laser welding machine .
In deep penetration welding, to maintain sufficient power density , the focus position is critical.so laser welding machine .

The change of the relative position of the focal point and the workpiece surface directly affects the width and depth of the weld.

Only when the focal point is located at a suitable position in the workpiece surface can the obtained weld be formed into a parallel section and obtain the maximum penetration depth.

Hope it is helpful for you.If you have any questions of machine,welcome to contact XT LASER.

Sales Manager:Anne Zhang

Mobile.whatsapp:+8615098735595

Skyepe:amyzhang1321

Email:xintian121@xtlaser.com

If you have time ,welcome to visit XT LASER.

How thick can a 1000 watt handheld laser welding machine be welded?-Anne

2019-12-09/in Industry news /by Admin

How thick can a 1000 watt handheld laser welding machine be welded?

Of course, the higher the power, the thicker the thickness of the welding. The laser welding is about the penetration/melting pool. The thickness of material also influence it ,so it can analysis laser welding material according to the following points.

Material

2. Thickness
3. Requirements
4. Welding angle
5. Pulling requirements

Different metal materials have different melting points:

A complicate things is The parameter setting of different kinds of materials , the thermal properties of welding materials vary with temperature; the difference of absorption rate of laser with different kinds of metals and its variation with temperature; the formation and evolution mechanism of molten pool; the melting zone and heat affected zone of solidification process Organizational evolution; formation of laser welded joint defects, welding residual stress and deformation. However, material properties on the microstructure and macroscopic properties of the weld is the key problems the formation and evolution mechanism of the weld pool and the formation of weld defects and residual stress during the solidification process of the weld pool.

So laser welding machine .

Is laser welding related to the thickness of the board?

The properties of the material relation to the depth of laser welding , and of course the material thickness, welded carbon steel, and titanium are certainly not possible with the same parameters.

For example, welding: 2mm thick stainless steel plate, requires penetration, the finer the weld, the better.We recommend to use 1000W fiber laser welding, the speed can reach more than 1 m / min

For example, welding: welding 3mm stainless steel plate with 500W laser welding, one-sided welding can penetrate 1.5mm thick material, if both sides are welded, each 1.5mm, the material of 3mm thickness will be penetrated;

So laser welding machine .

For example, welding: 1000W welding 5mm stainless steel plate can also be welded, one side can be molten pool 3mm, some production port tension requirements are not high, can also meet the requirements, if slow down, slowly walking welding may also be deep 5mm

Thickness of different power welding of handheld laser welding machine.So laser welding machine .

The hand-held laser welding machine wide application on the market. Due to its cost performance,public recognize its in life application.

Hope it is helpful for you ,if you have any questions of machine ,welcome to contact XT LASER

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

What protective gas should I use for laser welding?（II)-Anne

2019-12-05/in Industry news, laser welding machine /by Admin

What protective gas should I use for laser welding?

Type of protective gas

Commonly used laser welding protective gases are mainly N2, Ar, He, and their physicochemical properties are different, so the effect on the weld is also different.

1. Nitrogen N2—a welding protective gas of stainless steel

The ionization energy of N2 is moderate, higher than that of Ar, lower than that of He, and the degree of ionization is generally under the action of laser, which can better reduce the formation of plasma cloud, thereby increasing the effective utilization of laser. Nitrogen can react with aluminum alloy and carbon steel at a certain temperature to produce nitrides, which will improve the brittleness of welds and reduce the toughness, which will have a great adverse effect on the mechanical properties of welded joints.

Therefore, it is not recommend to use nitrogen.Protective Aluminum and carbon steel welds.The nitride produced by the chemical reaction between nitrogen and stainless steel can improve the strength of the welded joint and improve the mechanical properties of the weld.

Therefore, when welding stainless steel can use nitrogen as a shielding gas

2. Argon Ar—-high cost performance, the most conventional protective gas

The ionization energy of Ar is relatively low, and the degree of ionization is high under the action of laser, which is not conducive to controlling the formation of plasma cloud, which will have certain influence on the effective utilization of laser, but the activity of Ar is very low, and it is difficult to chemicalize with common metals.The reaction, and the cost of Ar is not high, in addition, the density of Ar is larger, which is favorable for sinking above the weld pool, and can better protect the weld pool.so it is a conventional shielding gas.

3. Helium He—the best but also the most expensive protective gas

He has the highest ionization energy and low ionization under the action of laser. It can control the formation of plasma cloud very well.So The laser can work well on metal, and the activity of He is very low, and it does not chemically react with metal.Very good weld protection gas, but the cost of He is too high, generally not used in mass production products, He is generally used for scientific research or products with very high added value.

Hope it is helpful for you.If you have any questions of machine,welcome to contact XT LASER.

Welcome to visit XT LASER factory.

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

Since