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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.

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