Laser Welding Machines

Criteria for selecting a laser welding machine

When choosing a laser welding machine, consider the following criteria:

1. Machine size: There are models of different sizes on the market. In order to choose the right machine, focus on the volume of your production.
2. Laser source power: The higher the power, the faster the work speed and the thicker the metal that can be welded.
3. Cooling system: For the majority of applications, air cooling is sufficient. Water cooling is recommended if the machine is to be used continuously for long periods.
4. Fiber cable length: The standard is 10 m. However, Wattsan has the laser welding machines that come with 15 m and 20 m cables. Your ability to weld in difficult-to-reach areas and move around with the gun in your hands without having to drag the entire machine around depends on how long the cable is.

Range of use of a laser welding machine

Laser welders are used to manufacture a wide range of items in a variety of industries due to their accuracy, speed, and versatility.

Here are some instances of applications and goods that can be produced with laser welding:

• Automotive industry: Engine components, gearboxes, transmission parts; bodywork assembly; differently complex constructions, etc.
• Aerospace: Avionics and engine components, structural panels and frames, etc.
• Energetics: Solar panel parts and connectors, wind and gas turbine turbines, etc.
• Electronics: Sensors, connections, microelectronic assemblies, and other parts for computers and mobile devices.
• Health care: Medical supplies include orthopedic pins, pacemakers, scalpels, and other surgical instruments.
• Jewelry: Exquisite work with a range of accessories and jewelry; repair and sizing changes without causing heat-sensitive stone damage.

FAQ

What metals can be welded with a laser welding machine?

Many different metals can be successfully welded using laser welding devices, including:

• Aluminum;
• Copper;
• Nickel alloys;
• Titanium;
• Stainless steel, carbon steel;
• Gold, silver, and other precious metals.

Can a laser welding machine weld cast iron?

Cast iron can be welded with a laser welder, although it is challenging because of its brittleness and high carbon content, which can cause cracking. To control thermal stress, laser parameters must be precisely controlled, and pre-heating and post-weld heat treatment are frequently required. 

What are the disadvantages of laser welding?

The following are the main drawbacks of laser welding:

1. High Initial Cost: Compared to traditional welding setups, laser welding equipment is typically more expensive.
2. Thickness Limitations: Unless extremely strong (and costly) lasers are utilized, particularly thick materials are difficult to work with.
3. Safety Concerns: Due to the high energy lasers’ potential for harm, strict safety precautions must be used.

Can a laser welding machine weld aluminum?

Yes, aluminum can be welded with a laser welding machine, although there are some difficulties:

• The high reflectivity of aluminum may reduce the effectiveness of welding. In this case, fiber lasers are far better than CO2 ones.
• Due to its quick heat dissipation, aluminum requires a higher power density.
• In order to control the oxide film that aluminum produces, cleaning is often required.
• Porosity and cracking, but these problems can be reduced by controlling the welding parameters.