Discover the transformative power of aluminum laser welding in aerospace and electronics industries. From overcoming challenges to enhancing efficiency and quality, this blog offers comprehensive insights for professionals. Explore basics, materials, equipment, safety, and selection to unlock the full potential of laser welding technology
Aluminum is a metal commonly used in manufacturing. This material is lightweight and corrosion resistant, making it an ideal choice for various welding materials. Welding aluminum may face problems such as oxidation layer and high thermal conductivity. Compared with traditional welding methods, laser welding aluminum has obvious advantages inquality and efficiency.
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Views: 35 Author: Leapion Publish Time: 04-22-2022 Origin: https://www.leapion.com/
Do you know how to choose the suitable laser welding machine for you? Today,Leapion will introduce to you.
Your laser welding machine can be equipped with one of the following two types of lasers: a pulsed laser or a continuous laser. The choice of one over the other depends on the thickness of the material you want to weld.
The pulsed laser:
It is suitable for metals that are light and thin.
It prevents them from being deformed or melted.
This type of pulsed laser is mainly used to weld sheet metal, razor blades, gold jewelry chain links and titanium pacemakers.
The continuous laser:
It is recommended for welding thick parts.
It is particularly effective on refractory metals.
It is more expensive than a pulsed laser, but it also reduces operating costs.
There are three types of sources: fiber laser, CO2 laser and Nd:YAG laser. The choice of source depends on the type of laser you have chosen (pulsed or continuous).
This technology is based on sharp and thin beams that allow continuous and penetrative work to be carried out.
Like the CO2 laser, the fiber laser can penetrate thick sheets with great speed and efficiency.
It is easier to integrate into a machine than other lasers both in terms of use and maintenance.
This laser offers an average efficiency of 25%.
This technology uses a gas mixture of carbon dioxide, helium and nitrogen that is electrically-excited and optimized for continuous operation.
Like the fiber laser, the CO2 laser can penetrate thick sheets with great speed and efficiency.
It is more effective at penetrating thick steel parts than the fiber laser so it is more widely used.
It is more flexible and can penetrate thicker and lighter materials than the fiber laser.
This laser offers an average efficiency of 7% for 8,000W.
It allows effective control of the power, duration and shape of the laser pulses.
It is optimized for pulsed mode. But it emits pulses of very different wavelengths that do not all reach their target and then dissipate in the form of heat.
This type of laser is less energy efficient (3 to 4% efficiency) than CO2 lasers (7 to 10%) and fiber lasers (25 to 30%).
Before using your laser welding machine, you will need to verify several parameters. Here are some common precautions to take to ensure that your welding operations are a success.
It is important to adjust the energy appropriately in order to adapt the power to the process. This will prevent energy waste.Ensure that you have the correct beam diameterThe diameter affects the welding performance. We recommend that you choose a laser beam with a diameter between 0.2 and 2 mm.
Pulse frequencies that are too high result in pulse energies that are too low making the welding less efficient or even inefficient.
We recommend that you change the waveform according to the metal you intend to weld. If you use an inadequate waveform, 60% to 98% of the laser energy will be lost and your welding operation will fail.
There are 3 types of configurations available for welding machines:
(1) Manual configuration
(2) Semi-automatic configuration
(3) Automatic configuration
The choice of configuration depends on: Your production (small-scale or large?)/How you want to arrange your workstation
They are more compact than semi-automatic and automatic machines.
They are equipped with manual or automatic doors.
The operator is in charge of the sequence of parts to be welded.
These machines are suitable for small-scale production.
They are larger than manual welding machines.
They are equipped with turntables.
These machines are ideal for medium and large-scale production.
These are the largest.
They are robotized and automatically manage the positioning of the part under the laser source.
Human intervention is reduced, which relieves the operator.
They are ideal for large-scale production.
They enable gains in productivity.
The presence of an automatic loading and unloading station reduces downtime.
On the other hand, they are much more expensive.
If you have any questions about welding machine, Leapion is here to resolve any of your queries. We specialize in all types of laser technologies. You can contact us and we will be available to assist you.
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