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Features and Buying Guide of Fiber Laser Welding Machine
Updatetime: 2021-12-31 16:09View:
With the application and development of laser technology in the welding industry, metal manufacturers have more choices when buying welding machines. When purchasing a welding machine, you may be hovering between traditional welding machine and laser welding machine, and don't know how to choose. ​People hesitate because they don’t know enough about laser welding machines. This article will introduce you the characteristics of laser welding machine from many aspects to help you purchase suitable metal welding equipment.
 
The handheld laser welding machine is flexible and convenient to operate, and the welding distance is not limited. Equipped with professional welding software, it can meet the needs of various sheet metal welding.
Laser welding machine

The working principle of laser welding machine

Laser welding uses high-energy laser pulses to locally heat the material in a small area. The laser radiation energy diffuses into the material through thermal conduction to form a specific molten pool. It is a new type of welding method, mainly used for welding thin-walled materials and precision parts, and can realize spot welding, butt welding and surfacing welding, etc., small weld width, small heat-affected zone, small deformation, fast welding speed, smooth and beautiful weld, simple processing after welding, high weld quality, accurate weld control, and positioning accuracy High and easy to automate.
 

Advantages of laser welding machine

1. The laser welding machine is equipped with a handheld laser gun, which can weld the workpiece at any angle, and is suitable for spot welding of complex welds and various equipment.
2. The operation is simple, which reduces the requirements for operators, and ordinary employees can operate the welding machine proficiently after simple training.
3. High welding efficiency. The work efficiency is 5-10 times that of ordinary argon arc welding. In the same time, more metal equipment can be welded, while reducing labor costs.
4. The heat input can be reduced to the minimum required amount, the metallographic change range of heat affected zone is small, and the deformation caused by heat conduction is also the lowest.
5. There is no need to use electrodes, and there is no concern about electrode pollution or damage. And because it does not belong to the contact welding process, the wear and deformation of machines and tools can be minimized.
6. The laser beam can be focused in a small area, and small and closely spaced parts can be welded.
There is a wide range of weldable materials, and various dissimilar materials can be joined with each other.
7. It is easy to carry out high-speed welding with automation, and can also be controlled by digital or computer.
8. When welding thin materials or small-diameter wires, there will be no trouble of reflow like arc welding.
9. There is a wide range of weldable materials, and various dissimilar materials can be joined with each other.
10. Shorter cycle and higher up times. 
Laser welding machine

Disadvantages of laser welding machine

1. The position of welding should be very accurate and must be within the focusing range of laser beam.
2. When the fixture is used for welding, it must be ensured that the final position of welding should be aligned with the welding spot impacted by laser beam.
3. The maximum joint thickness that can be welded by laser beam is somewhat limited. 
4. The materials have high thermal conductivity and reflectivity like Al and Cu alloys can affect the weldability with lasers. 
5. An appropriate plasma control device must be employed to ensure the weld reproducibility while performing moderate to high power laser welding. 
6. The weld bead solidifies rapidly, and there may be concerns about weld-porosity and brittleness.
7. The welding equipment is expensive.
 
What products can be welded by laser welding machine? Which industries can the laser welding machine be used in?
 

The industrial application of laser welding machine involves the following industries

Sanitary industry: welding of water pipe joints, reducers, tees, valves, showers.
Medical industry: welding of medical equipment, medical equipment, stainless steel seals and structural parts.
Hardware industry: welding of impellers, kettles, handles, etc., complex stamping parts and castings.
Automobile industry: wool machine cylinder head gasket, hydraulic tappet sealing welding, spark plug welding, filter welding, etc.
Household hardware, kitchenware, stainless steel door handles, electronic components, sensors, watches, precision machinery, communications, handicrafts and other industries.
Laser welding for metal

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