What is Fiber Laser Welding Machine

The fiber laser welding machine provides non-contact welding for a myriad of industries. This new welding technology provides a high-quality welding process for many micro parts. Conventional welding machines utilize oxygen and arc welding. Although this is also very easy to operate, the harmful fumes produced by the welding process can be hazardous to the operator's health. It is also limited in use and cannot weld metals such as magnesium and aluminum.
To better understand the various properties of the fiber laser welding machine, read on!

  1. Pros and cons of fiber laser welding machine
  2. Important components of the fiber laser welding machine
  3. Factors affecting the price of a fiber laser welding machine
  4. Types of Fiber Laser Welding Systems
  5. Best fiber laser welding machines
  6. How a fiber laser welding machine works
  7. Fiber laser welding VS other welding methods
  8. Applications of laser welding
  9. Conclusion

Pros and cons of fiber laser welding machine

Laser welding has many advantages over conventional welding, and we will discuss in depth the main reasons for the popularity of Fiber laser welding machines:

  1. Fast welding: Laser welding is non-contact welding and the laser beam's energy is huge, so the welding speed is very fast.
  2. Safe operation: No radiation or harmful gases are produced during the welding process
  3. High welding accuracy: Laser welding provides a small and precise weld seam
  4. Small size: The compact construction of the machine greatly reduces the footprint
  5. Automation: The welding process is highly intelligent and only requires the appropriate parameters to be set on the computer for production use. The laser fiber welder also has a touch screen for real-time reading of machine faults, feedback and alarm functions.
  6. Multiple welding methods: Continuous welding, fish scale welding, full welding, electric welding and many other welding methods can be easily realized.
  7. No maintenance required: The machine has almost no wear and tear during use, so there is no need to worry about later maintenance.

Of course, fiber laser welding machines also have some disadvantages in use, as follows:

  1. Expensive: handheld or CNC welding machines are expensive.
  2. The welding technique and parameters are different for different metals and must be reset before welding.

In order to better understanding the various features of the fiber laser welding machine will present more challenges to help you.

Important components of the fiber laser welding machine

Laser source

The laser source is the heart of the welding machine and is the most expensive of all components. The Fiber laser source consists of a fiber core, a doping medium, and a laser cavity, and its role in the welding machine is to convert electrical energy into light energy. An electric current is applied at both ends of the laser, and the fiber core reflects the electrons into photons. This is then turned into light of a specific wavelength by the doping element, passing through the laser cavity, where the laser light is amplified.

Optical elements

The optical elements consist of focusing mirrors and reflectors, which bring together the resulting laser beam.

Wire feeders

The function of the wire feeder is to add filler material to the welding process. The wire feeder slows the welding speed and improves the weld quality in most cases. However, it also accelerates the solidification of the metal and may cause the weld to fracture easily.

Welding heads

The welding head contains a vibrating mirror, a nozzle and a focusing mirror. The portable welding machine allows the welding head to be easily moved.

Protective gas

Those familiar with laser cutting machines are probably aware of the air assist on the machine, which acts in the same way as the shielding gas on the welding machine. The shielding gas helps to reduce defects in the weld and improves the quality of the weld.

Laser controller

We control the fiber laser welding machine's laser power, pulse duration and repetition rate on a touch screen. It also monitors the overall safety of the machine in real-time to ensure good welding quality.

Water chillers

Some welding machines are air-cooled and do not require a water chiller. The rest of the water-cooled machines need a water cooler to ensure they work at the right temperature.

Factors affecting the price of a fiber laser welding machine

  1. Laser power: General laser power is the main factor influencing the price of a fiber laser welder. The higher the laser power, the higher the water cooler, the standard of protection and the various accessories, which will cost more money.
  2. Lasers: There are two common types of lasers: pulsed and continuous, with pulsed lasers usually being more expensive.

Considerations for choosing a fiber laser welding machine

  1. Lasers: Pulsed lasers have many advantages over continuous lasers. For example, they can weld smaller seams with a lower heat-affected zone.
  2. Accuracy: Welding accuracy determines the aesthetics of the weld, and single-mode lasers are usually more suitable for high-precision applications.
  3. Energy density: Multimode has a lower energy density and is suitable for handling large welding areas. Single-mode is the opposite and suitable for more precise welding.
  4. Price: You can choose the right machine parameters and features according to your budget.
  5. Welding speed: The speed of the weld affects the strength of the weld, but unlike a cutting machine, the speed of the welding machine has to be chosen with the right parameters, not the faster, the better.
  6. Welding power: If the power of the fiber laser welding machine is too low, the laser beam's energy will not be able to melt the material, so the welding cannot be completed. When choosing a fiber laser welder, you must ensure that the energy released will reach the material's melting point.

Types of Fiber Laser Welding Systems

Handheld laser welding machines

This is the most popular type of laser welding machine in small businesses and is very flexible and mobile. Even beginners can learn to operate it very quickly.

CNC laser welding machines

The CNC laser welding machine is specifically designed for the welding of large equipment. It is highly productive and preferred for many specific welding operations.

Robot welding machine

This intelligent welding machine controls the robot arm to achieve 3D welding.

Best fiber laser welding machines

Handheld metal laser welding machine

This handheld welding machine is easy to operate and has beautiful welds. You can easily weld beautifully on metal materials like stainless steel and aluminum sheets. Fiber laser welding machine enables a variety of welding techniques such as spot welding, seal welding, continuous welding and fish scale welding.
This laser welding machine uses a pulsed laser with a small heat-affected area and a small weld width. You can easily use it for a wide range of high-precision welding machines.

3D fiber laser welding machine robot

Computer-controlled robot arms reduce workers' required skills and save on hiring labor costs. The intelligently controlled arm is more flexible and the six-axis linkage can be tilted at random welding angles.
Multi-station welding greatly improves production efficiency.

How a fiber laser welding machine works

Take G. Weike's fiber laser welder as an example and shows you how it works: robot and handled fiber laser welder.

Robot laser welder process

Handled laser welder process

Fiber laser welding VS other welding methods

Fiber laser welding is a welding technique that uses the powerful energy of a laser beam to melt metal instantly. It can quickly produce strong and beautiful welds. It is also popular with many manufacturers because it has a small heat range during welding.
Do you want to know the difference between fiber laser welding and other methods such as MIG, TIG, and ARC welding? Which welding method is more robust? Let's examine the differences between fiber laser welding and other welding methods.

Fiber laser welding VS MIG welding

MIG welding (also gas-shielded metal arc welding) is a welding technique that uses an electric arc to heat the material to be welded. The main advantage of MIG welding is that the weld is so strong that it is often used in welding thick metals.
The biggest advantage of fiber laser welding is its high precision and accuracy, which makes it more suitable for welding high-precision parts. The disadvantage is the high cost of purchasing a machine for laser welding.
The advantage of MIG welding is that it is easy to operate: you can easily adjust the output power to the material being welded, and there is no need for additional gas tanks. The disadvantage is that MIG welding technology is very demanding on the operator and very easy to solder inaccurately. There is also a lot of spatter during the welding process, and you need to do additional cleaning after the welding is completed.

Fiber laser welding VS TIG welding

TIG welding (tungsten gas-shielded welding) is mainly used for joining magnesium and aluminum. TIG welding is an alternative to metal arc welding and gas welding. The advantages of TIG welding are:
1. It provides a high-quality weld when welding copper, aluminum and dissimilar metals
The disadvantage of TIG welding compared to fiber laser welding is that it is a slow welding process. As with MIG welding, it requires a high level of operator expertise. Also, TIG welding can not weld thick metals.

Fiber laser welding VS ARC welding

ARC welding works similarly to MIG welding, except that ARC does not require additional shielding gas during welding. 

  1. Fast welding speed
  2. Low purchase price


  1. Radiation and harmful fumes are generated during the welding process
  2. Requires a high degree of professionalism from the operator
  3. Limited materials suitable for welding

Which welding method is better for you?

This depends on your application and needs, but laser welding is your best choice. It compares favorably with other welding techniques regarding safety, ease of operation, welding results and time.

Applications of laser welding

Laser welding technology is used in many applications, so let's look at what industries are using fiber laser welding machines.

  1. The transport industry: whether it is the production of cars, aircraft, and high-speed rail vehicles, will use welding technology. For this ultra-precise welding, we will generally prefer a laser welding machine. For example, the electric core and body of the car, the turbine blades of the aircraft, and the display's pcb chips all need laser welding technology to complete.
  2. Electronics: All electronic products have PCB chips used for welding electrical components, resistors and wiring using handled laser welding machines.
  3. Construction industry: we commonly use laser welding for doors, windows, pipes and many machined parts.

Jewelry industry: a fiber laser welder sells gold and silver jewelry.


The demand for more robust and precise welding of products is increasing and the fiber laser welding machine is becoming increasingly important in many industries. With the continuous development and innovation of the fiber laser welder, it is becoming more and more versatile and the welding results are getting better and better.