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Handheld Fiber Laser Welding Machine Introduction Guide

handheld fiber
Now with the rapid development of China’s industrial technology, laser this advanced technology gradually appeared in people’s vision, and the use of laser welding equipment is more and more widely, now has been spread to every manufacturing industry.And laser welding equipment, called the laser welding machine, is for the use of laser raw materials production and processing equipment, according to its work method is divided into laser mold welder burning, automatic laser welding equipment, laser spot welding, laser welding equipment, optical fiber transmission energy of laser pulse laser welding is used on the material part of the heating of small area, the energy of laser radiation according to heat transfer to the internal diffusion of raw materials, will have a special material after the molten pool in order to achieve the aim of welding.So now there is a more advanced welding equipment – hand-held fiber laser welding machine.

What is a handheld fiber laser welding machine

Handheld fiber laser welding machine uses high energy laser pulse to heat the material locally in a small area. The energy radiated by the laser is transmitted to the internal diffusion of the material through heat conduction, and the material is melted to form a specific molten pool.It is a new kind of welding way, mainly for the welding of thin wall materials, precision parts, which can realize welding, butt welding, welding stack, seal welding, etc., deep than high, wide weld width is small, small heat affected zone, small deformation, welding speed, welding seam smooth, beautiful, without processing or simply processing after welding, high weld quality, no pores, can accurate control, focusing on small points of light, high positioning accuracy, easy to realize automation.

Application scope of handheld fiber laser welding machine


Laser Tailor Welding (LTW) technology has been widely used in foreign car manufacturing. According to statistics, in 2000, there were more than 100 production lines of laser Tailor Welding (LTW) for tailoring blanks worldwide, with an annual output of 70 million pieces of Tailor Welding blanks for car components, and it continues to grow at a high speed.Domestic production introduced models also use some cutting blank plate structure.In Japan, CO2 laser welding is used to replace flash welding for the connection of rolled steel coels in the steel making industry. The research on ultra-thin sheet welding, such as foil with a thickness of less than 100 microns, cannot be fused, but it can be successfully welded by YAG laser welding with a special output power waveform, which shows the broad future of laser welding.Japan is also the first country in the world to successfully develop YAG laser welding for the maintenance of thin tubes of steam generators in nuclear reactors, and also the gear laser welding technology in China.

Powder metallurgy

With the continuous development of science and technology, many industrial technology on the special requirements of materials, the application of smelting method of materials can not meet the needs.Due to the special performance and manufacturing advantages of powder metallurgy materials, in some fields such as automobile, aircraft, tool and cutting tool manufacturing industry is replacing the traditional metallurgical materials, with the growing development of powder metallurgy materials, it is increasingly prominent with other parts of the connection problem, so that the application of powder metallurgy materials is limited.In the early eighty s, laser welding, with its unique advantage into the field of powder metallurgy materials processing, has opened up new prospects for the application of the powder metallurgy materials, such as using powder metallurgy material connection that is commonly used in welding diamond brazing method, because of the low bonding strength, heat affected zone width in particular can not adapt to high temperature and high strength requirement caused by solder melting loss, using laser welding can improve weld strength and high temperature resistant performance.

The car industry

In the late 1980s, the kilowatt laser was successfully applied to industrial production, and now the laser welding production line has appeared on a large scale in the automobile manufacturing industry, which has become one of the outstanding achievements of the automobile manufacturing industry.European car manufacturers as early as the 1980s took the lead in the use of laser welding roof, body, side frame and other sheet metal welding, in the 1990s, the United States has introduced laser welding into car manufacturing, although the start is late, but the development is very fast.Italy in most laser welding is adopted in the welding of steel component assembly, the Japanese are used in the manufacturing automobile body covering parts of laser welding and cutting technology, the identity of the laser welding assembly parts because of its excellent performance becomes more and more used in automobile body manufacturing, according to the American metal market, by the end of 2002, the consumption of laser welded steel structure will be 70000 t 3 times more than in 1998.According to the characteristics of large batch and high degree of automation in automobile industry, laser welding equipment is developing in the direction of high power and multi-channel.In process in the United States PrattWitney and Sandia national laboratories in laser welding process in the research, adding metal powder and wire beam technology research institute in Germany Bremen applications use laser welding of aluminium alloy body frame carried out extensive research, more than that is added in the weld filler helps eliminate hot crack, improve the welding speed, solve the problem of tolerance, the development of the production line has been put into production in the factory.

The electronics industry

Laser welding is widely used in electronic industry, especially in microelectronic industry.Laser welding shows its unique advantages in the packaging of integrated circuits and semiconductor device shells because of its small heat-affected zone, rapid heating concentration and low thermal stress. In the development of vacuum devices, laser welding has also been applied, such as molybdenum focusing electrode and stainless steel support ring, fast hot cathode filament assembly and so on.Sensor or temperature controller in the elastic thin-wall corrugated sheet thickness in 0.05-0.1mm, using the traditional welding method is difficult to solve, TIG welding easy to weld through, plasma stability is poor, many factors and the use of laser welding effect is very good, has been widely used.


Laser welding of biological tissues began in the 1970s. The successful welding of fallopian tubes and blood vessels by laser and its advantages have made more researchers try to weld various biological tissues and extend it to the welding of other tissues.Domestic and foreign researches on laser nerve welding mainly focus on laser wavelength, dose and its effect on functional recovery as well as the selection of laser solder, etc. Liu Tongjun conducted laser welding of small blood vessels and skin on the basis of basic research and welding of common bile duct of great white mice.Compared with the traditional suture method, laser welding has the advantages of fast anastomotic speed, no foreign body reaction in the healing process, maintaining the mechanical properties of the welding site, and growing the repaired tissue according to its original biomechanical properties, which will be more widely used in the future biomedical science.

In other areas

In other industries, laser welding is also gradually increasing, especially in the special material welding in China has carried out a lot of research, such as BT20 titanium alloy, HEL30 alloy, Li-ion battery laser welding, Germany has developed a new laser welding technology for flat glass.

Advantages of handheld laser welding machine

1. Small floor space, convenient and flexible;The integrated cabinet integrates the laser, water chiller, software control, etc., covers a small area, and the hand-held welding joint is equipped with 5-10 meters of original optical fiber, which is flexible and convenient.
2. One-time welding forming, basically no deformation;Handheld operation mode, the assembly of special welding nozzle can be any part of the workpiece to achieve any Angle of welding, welding one molding, basically no deformation, can meet the requirements of high quality products welding.
3. The welding seam is beautiful, without welding scar and without grinding;The welding seam is beautiful, no welding scar without subsequent grinding, and the welding is firm, the welding seam strength reaches or even exceeds the base material itself.
4. Strong safety;Special laser safe operation and protection function, to ensure the safety of operators during work, equipped with laser protective glasses, reduce eye damage.

How to maintain our handheld fiber laser welding machine

Maintenance of welding machine

First of all, special attention should be paid to the inspection of the welding machine’s internal or external joint terminals, which can only be carried out after the input power switch is turned off.
1. Do a good job of testing regularly.For example, check whether the rotation of cooling fan is smooth when the welding machine is energized;Whether there is abnormal vibration, sound and smell;Whether there is leakage of gas;Whether the joint of the welding wire and the wrapping of insulation is loose or peeling off;Whether there are abnormal heating phenomena in the welding cable and the wiring parts.
2. As the welding machine is forced air cooling, it is easy to absorb dust from the surrounding and accumulate in the machine.Therefore, we can regularly use clean and dry compressed air to blow away the dust inside the welding machine.In particular, the transformer, the reactance coil and the gap between the coil and the power semiconductor parts should be particularly clean.
3. Check the wiring parts of the power wiring regularly.Whether the wiring screws of the terminals such as the input side, the output side, and the wiring parts of the external wiring and the wiring parts of the internal wiring are loose or not, the rust should be removed to make the contact conductive good when rusting.
4. Long-term use of welding machine will inevitably make the shell
deformation due to contact, rust and damage, internal parts will also wear away, so in the annual maintenance and inspection to implement the replacement of defective parts and shell repair and insulation deterioration parts of the reinforcement and other comprehensive repair work.Replacement of defective parts in the maintenance of all the best to replace the new products to ensure the performance of the welding machine.

welding torch maintenance

1. Check and replace the conductive nozzle regularly
Due to the wear of the conductive nozzle aperture becomes larger, it will cause arc instability, weld appearance deterioration or sticky wire (burn back);Splash is attached to the end of the conductive nozzle, and the wire feeding will become uneven.Conductive nozzle screwed not tight, threaded connection will heat and weld dead.
2. Clean and replace the spring hose regularly
After a long time of use, the spring hose will accumulate a large amount of iron powder, dust, welding wire plating, etc., which will make the wire feeding unstable.So it’s important to clean it regularly, curl it up and tap it gently to shake it off and then blow it off with compressed air.The grease on the hose should be washed in oil with a brush, and then blown clean with compressed air.Spring hose if the wrong wire or serious deformation bending, to replace the new hose.When replacing the tube, make sure that it is suitable for the diameter and length of the wire used, and that there is no burr on the cutting surface.
3. Check the insulation ring
If the insulating ring is removed for welding, the splash will stick inside the nozzle to conduct the nozzle with the live part.The welding torch may burn out by short circuit.At the same time, in order to make the protective gas flow out evenly, it is necessary to install an insulating ring.

Handheld welding manual operation and maintenance

1. Handheld laser welding machine workers must pass professional training, understand the use of the system indicator light and button, familiar with the most basic equipment knowledge, safety knowledge and matters needing attention before using.
2. Detection of hand-held laser welding machine before work
Wire groove, no damaged wire exposed;Robot body, external shaft, cleaning gun station, water cooling machine is strictly prohibited to put debris you, tools, etc.;
3. No liquid objects (such as water bottles) are allowed on the control cabinet;
No flammable articles (such as cotton shoes) in the operating room;
Operating room temperature shall not exceed 25 degrees Celsius;
No leakage of air, water and electricity;
There is no damage to the thread of the welding tooling and no abnormality in the robot.
The working range of the robot has no magnetic field, vibration source (such as magnet)

At the end

Actually looked at the top so much about handheld optical fiber laser welding machine is introduced, believe everyone on handheld optical fiber laser cutting machine has the certain understanding and the understanding, if do you have any questions for handheld optical fiber laser welding machine, can communicate with our business personnel at any time, we will provide you with quality service and professional solutions, looking forward to your inquiries!
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