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The safety of handheld fiber laser welding machine-Serena

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The safety of handheld fiber laser welding machine-Serena

The safety of handheld fiber laser welding machine.

How is the safety of XT laser handheld welding machine.

1. The welding head is connected to the ground clamp.

Only when the ground clamp clamps the metal, the welding head can emit light.

If it is clamped in non-metal, even if the button is pressed.

It will not emit light, to avoid misoperation if it is not fully prepared.

2. The focal length of the welding head is about 150MM.

So the range beyond 30CM of the welding head is safe.

So please set a safety warning line for the 30CM near the operating table.
3. Welding requires the light to be out of focus.

The welding effect is the best and the safety is the highest.

It can avoid sparks caused by strong light and can also extend the life of the protective lens.

Defocusing is to adjust the scale on the copper nozzle of the welding head.

Where the test time is strongest, the copper nozzle can be adjusted up and down to form defocusing

Sometimes the strong light welding will burn the protective glasses.

And the sparks will cause the operator’s clothes to burn, etc., so it is recommended to test the off-focus before operation.
4. Radiation problem. The certificate shows that the radiation level of the welding machine is level 4, which is in line with the body’s acceptance range, so don’t worry.

5. Basic protective measures must be taken before operation: wear heat-resistant gloves and protective glasses

laser welding machine

 

How to Maintain the Handheld Laser Welding Machine-Anne

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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

Handheld laser welding VS traditional welding and laser welding-Anne

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Handheld laser welding VS traditional welding and laser welding

Laser welding machine uses a high energy density laser beam as a heat source for efficient precision welding.

Since laser welding machine requires high precision for workpiece pre-machining, the position of the beam on the workpiece will not offset.

if theassembly accuracy or beam positioning accuracy of the workpiece does not meet the requirements.

So It is easy to cause welding defects, which limits the process capacity of laser welding to a certain extent. This is because the spot size is small and the weld is narrow after laser focusing.
In response to the limitations of the above laser welding technology, the market has gradually introduce a laser welding method with double wedge laser vibration, The realization method is to set a special swing vibration module on the welding head.

The application of wobble welding technology can make laser welding more widely used, and it can achieve high-efficiency laser precision welding for larger wider welds workpieces.

Wobble handheld welding head

laser welding

 

 

 

 

 

 

 

Advantages of handheld laser welding technology
In conventional laser vibration welding, the collimated beam is vibrated by a uniaxial galvanometer, and the spot focused by the focusing mirror is moved with the welding head to move
relative to the workpiece to form a weld having a certain amplitude, frequency and offset.
Compared to the first two vibration welding modes, the double wedge mirror rotational vibration welding produces a spiral weld seam by the vibration module mounted between the collimating mirror and the focusing mirror, so that the focusing spot moves while the welding head moves.

When the focal length is the same, the larger the torsion angle is,the larger the vibration amplitude is.

When the torsion angle is the same, the larger the focal length, the larger the vibration amplitude.

Therefore, double wedge vibration welding allows to widen the weld joint  while achieving better weld formability.

Hope this information is helpful for you.If you have any questions,please feel free contact to XT LASER.

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

 

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

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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.

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

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What protective gas should I use for laser welding?

The role of shielding gas in laser welding

In laser welding, the protective gas will affect the weld formation, the weld quality, the weld penetration and the width of the weld. In most cases, the blowing of the shielding gas will have a beneficial effect on the weld, but it will not be used.  Good may also have an adverse effect.

The positive effect of shielding gas on laser welding

1) Proper blowing of protective gas will effectively protect the weld pool from oxidation and even avoid oxidation.

2) Proper blowing of the shielding gas can effectively reduce the splash generated during the welding process and protect the focusing mirror or the protective mirror.

3) Proper blowing of the protective gas can promote uniform spreading of the weld pool during solidification, so that the weld bead is formed evenly and beautifully.

4) Proper blowing of the shielding gas can effectively reduce the shielding effect of the metal vapor plume or the plasma cloud on the laser , increase the laser energy reaching the surface of the workpiece, and increase the effective utilization of the laser.

5) Proper blowing of protective gas can effectively reduce weld porosity.

As long as the gas type, gas flow rate, and  select correct blowing method , you can get desire effect. However, incorrect use of shielding gas can also adversely affect welding.

Adverse effects of improper use of shielding gas on laser welding

1) Incorrect blowing of shielding gas may cause the weld to deteriorate:

2) Choosing the wrong type of gas may cause cracks in the weld and may also result in a decrease in the mechanical properties of the weld;

3) Choosing the wrong gas blowing flow rate may cause the weld to be more oxidized. (whether the flow rate is too large or too small)

4) Choosing the wrong gas blowing method will result in the weld not achieving the protective effect or even the basic protection effect or negatively affecting the weld formation;

5) Insufflation of the shielding gas will have a certain influence on the weld penetration, especially when the thin plate is welded, the weld penetration will be reduced.

Hope it is helpful for you,we will share you the gas type in the next article.

If you have any questions of machine,welcome to contact to us.

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

What shielding gas should I use for laser welding machine?-Anne

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What shielding gas should I use for laser welding machine?

In laser welding, shielding gas will affect the weld formation, the weld quality, the weld depth, and the weld width, etc.In most cases, the blowing of the shielding gas will have a beneficial effect on the weld, but bad use may also bring adverse effects.

FIBER LASER WELDER

The positive effect of shielding gas on laser welding

laser welding machine

●Proper blowing of the shielding gas will effectively protect the weld pool from oxidation and even avoid oxidation;

FIBER LASER WELDER

●Laser welder,Proper blowing of the shielding gas can effectively reduce the splash generated during the welding process and protect the focusing mirror;

laser welding machine

Proper blowing of the shielding gas can promote the uniform spreading of the weld pool during solidification so that the weld more  formed and beautiful;.

FIBER LASER WELDER

●Laser welding machine,proper blowing of the shielding gas can effectively reduce metal vapor or the shielding effect of the plasma cloud on the laser so that the laser energy reaching the surface of the workpiece, and thereby increase the effective utilization rate of the laser;

laser welding machine

●Proper blowing of the shielding gas can effectively reduce weld porosity.

Choose right gas type, gas flow rate, and blowing , it can achieve good result.However, improper use of shielding gas can also have adverse effects on welding.

laser welding machine

Adverse effects of improper use of shielding gas on laser welding

laser welding machine

●Improper blowing of shielding gas may cause the weld to deteriorate;

●Choosing the wrong type of gas may cause cracks in the weld, and may also lead to the reduction of weld mechanical properties;

●Choosing the wrong type of gas may cause the weld to be more oxidized (whether the flow is too large or too small), or it may cause the weld pool metal to be seriously disturbed by the external force to cause the weld to collapse or form unevenly;

●Choose the wrong gas blowing method will result in the weld not achieving the protective effect or negatively affecting the weld formation;

●Insufflation of the shielding gas will have a certain effect on the weld penetration, especially when the thin plate is welded, the weld penetration will be reduced.The commonly used laser welding shielding gas is mainly N2(nitrogen), Ar(argon), He(helium), and their physicochemical properties are different, so the effect on the weld is different.

FIBER LASER WELDER

●Nitrogen N2—can be used for welding shielding gas of stainless steel

laser weldER

The ionization energy of N2 is moderate, higher than that of Ar, lower than that of He, and the ionization degree under the action of laser is general, 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, and have a great adverse effect on the mechanical properties of the weld joint.Therefore, it is not recommended to use nitrogen to protect the weld of aluminum alloy and carbon steel.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, nitrogen can be used as a shielding gas when welding stainless steel.

laser welding machine

●Argon Ar— high-cost performance, the most conventional shielding gas

FIBER LASER WELDER

The ionization energy of Ar is relatively low, and the degree of ionization is high under the action of the laser, which is not conducive to controlling the formation of the plasma cloud, and will have a certain influence on the effective utilization of laser.However, the activity of Ar is very low, and it is difficult to react with common metals, and the cost of Ar is not high.Besides, the density of Ar is large, which is conducive to sinking above the weld pool and can better protect the weld pool. Therefore, Ar can be used as a conventional shielding gas.

FIBER LASER WELDER

●Helium He—the best but also the most expensive shielding gas

laser welding machine

He has the highest ionization energy and low ionization under the action of laser.

It can control the formation of the plasma cloud very well, and the laser can work well on metal.

Moreover, the activity of He is very low, and it does not chemically react with metals, so it is a good weld shielding gas.However, the cost of He is too high to be suitable for mass production products.

Most of time it use for scientific research or products with very high added value.so 

Hope this information is helpful for you.If you have any questions of machine,please contact to us.

FIBER LASER WELDER

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

FIBER LASER WELDER

laser welding machine

The 10 Advantages Of Laser Welding Machine-Anne

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The 10 Advantages Of Laser Welding Machine

Now,fiber laser welding machine more popular in the market.To help you know more about laser welding machine.

Today,XT LASER will share some features of laser welding machine.

The main features of laser welding are as follows:

(1)The heat input is small, the weld width to width ratio is large, and the heat affected zone is small, resulting in small shrinkage and deformation of the workpiece, and no post-weld orthopedics are required;
(2)high weld strength, fast welding speed, narrow weld seam and good surface condition, eliminating the need for post-weld cleaning;so 
(3)Welding consistency and stability are generally not filled with metal and flux, and can achieve partial dissimilar material welding;so

(4)  The beam is easy to control, and the welding positioning is accurate and easy to automate;

(5)Non-contact processing, no need to pressurize the workpiece and surface treatment;so 
(6) Small solder joints, high energy density, suitable for high speed machining;so
(7)Short-time welding, which has no thermal influence on the outside world, and has small thermal deformation and heat-affected zone of the material itself, especially suitable for processing high melting point, high hardness and special materials;

(8) so No processing noise, no pollution to the environment;

(9) if It is possible to realize long-distance, difficult-to-reach parts, multi-channel simultaneous or time-sharing by optical fiber;so 
(10) so It is easy to change the laser output focal length and solder joint position;
(11) if It is easy to mount on the automaton and robot device;
(12) Compared with other welding methods, the initial investment of laser welding is relatively large;
(13)The assembly precision of the welded workpiece is high, and the accuracy of the beam manipulation is relatively high;

(14) Due to the large spatter, the penetration weld is rougher than brazing, but the strength is much higher than ordinary spot welding.

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

Sales Manager:Anne Zhang   Mob.whatsapp:+8615098735595  Skype:amyzhang1321 Email:xintian121@xtlaser.com

Where can we use 1000W/1500W/2000W handheld laser welding machine-Claudia

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Where can we use 1000W/1500W handheld laser welding machine

XT LASER 1000W/1500W handheld laser welding machine adopts the latest generation of fiber lasers and is equipped with self-developed welding heads to fill the blank of hand-held welding in the laser equipment industry.

It has the advantages of simple operation, beautiful weld seam, fast welding speed and no consumables.so 

So Welding of metal materials such as stainless steel plates, iron plates, and galvanized plates can perfectly replace traditional argon arc welding and electric welding.The hand-held laser welding machine have a widely use in complex and irregular welding processes in cabinet kitchens, stair elevators, shelves, ovens, stainless steel door and window guardrails, distribution boxes, stainless steel homes and other industries.

According to the welding material and shape can set arbitrarily The output waveform of 1000W/1500W handheld laser welding machine.so 

During the welding process of the specific workpiece, according to the shape and material of the work to change the loutput waveform of laser energy of ,which can greatly improve the welding quality,and even we also can  change the output waveform of the laser to solve the traditional laser welding challenges.

Disadvantages of 1000W/1500W handheld laser welding machines:

Hand-held laser welding machines require the user to hold them, which can cause fatigue when working for a long time, and is not conducive to the welding of large original parts, and it is limit the scope of use.

At the same time, laser hand soldering is not suitable for soldering with a material thickness of approximately 3 mm.

Hope this information is helpful for you.IIf you have any questions of machine,please feel free contact to us.

Sales Manager:Anne Zhang

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com

If you have time,warmly welcome to visit XT LASER.

1kw handheld fiber laser welding machine -Anne

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1kw handheld fiber laser welding machine

Now fiber laser welding machine more and more popular in the market.But most of customer have man confused of laser welding machine.

laser welding machine

Here are some questions that customers asked,XT LASER will share to you too.

1.Welding head Weight:It around 1.5 kg.

2.Laser unit to head length:standard is 15m,if you need add length,it will add cost.

3.Material and thickness capacity for welding:
1000w for SS and CS upto 4mm

1000w for copper uptown 1.5mm

4.Welding speed thickness wise:


–It depend on the thickness.more thick the speed more lower.And it is also depend on the operator experience.

5.Consumable part list and cost:
–Main consumable is protective lens and weld nozzle.The cost around 20usd/piece

Product  price /piece  HS code
Proective lens  15usd 9001909090
Weld nozzle 20USD  8468900000

6.How much program store

 –It can save 10 groups parameters.It mean that can store 10 parameters for welding different samples.

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

Sales Manager:Anne Zhang 

Mob.whatsapp:+8615098735595

Skype:amyzhang1321

Email:xintian121@xtlaser.com