Laser Welders: How They Work, What They Can Do [With Videos]

Posted on

April 30, 2025

Laser welding may seem like a new technology, but it has actually been used in many industries for more than 20 years. While it is a proven technology like Tig and Mig welding, it's not as commonly used; therefore, there are many questions surrounding laser welders, including how they work, the benefits of laser welding, and its capabilities.

How Laser Welding Works

Laser welding is a high-precision welding technique that uses a focused laser beam to join pieces of metal together. The laser provides a concentrated heat source, allowing for narrow, deep welds and high welding speeds.

During the laser welding process, a high-powered laser is directed onto the materials to be joined. The intense energy from the laser melts the materials at the joint, which then solidifies to form a strong weld. Depending on the application, laser welding can be done with or without filler material.

Benefits of Laser Welding

There are many benefits of laser welding:

· Laser welders can weld a variety of metals, including stainless steel, carbon steel, aluminum, galvanized steel, and copper

· 4x faster weld speeds compared to traditional welders

· Increased weld strength

· Decreased porosity

· A clean, uniform weld bead that needs minimal post-processing

· Easy-to-use system that requires less training

Because laser welders use a laser beam, these units do have specific safety requirements. Manufacturers considering laser welding should contact a knowledgeable laser welder expert about specific safety requirements.

Capabilities of a DNE Handheld Laser Welder

There are several handheld laser welders available, each with different capabilities and strengths. The DNE Handheld Laser Welder has many capabilities that make it a good option for manufacturers; companies should consider a DNE Handheld Laser Welder expert to find out if and how the DNE laser welder can benefit their business.

Large Arced Welds

With a 20μ spot size, the DNE HW series minimizes heat-affected zones, weld deformation, and burn-through. DNE's laser welding process yields clean, uniform weld beads that necessitate minimal post-processing---including parts with a long seam.

Stainless Steel Tubes

The DNE Handheld Welder can weld a variety of materials(i.e. stainless steel, carbon steel, aluminum, galvanized steel, etc.) and parts with different shapes, including tubes.

Wobble Welding

Capable of wobble welding up to 4 mm, the DNE Handheld Welder can fuse materials together, with or without a wire.

Dual Wire Fillet on 0.25" Plate

The DNE Handheld Laser Welder can achieve a dual wire fillet on a .25" plate.

Passivate

The DNE Handheld Laser can remove contaminates with ease.

Spot Welding

When paired with automation, the COBOT Laser Welding Cart can precisely spot weld with less heat.

‍Conclusion

Called "the safest and most portable laser welder on the market," the DNE Handheld Laser Welder is a lightweight, compact, and versatile welding solution. With proven precision laser technology, ergonomic design, and an intuitive operating system, DNE Handheld Laser Welders ensure clean, uniform welds with minimal post-processing, enhancing efficiency, productivity, and profitability.