Does Handheld Laser Welding Require Shielding Gas? Everything You Need to Know

One of the Most Frequently Asked Questions About Handheld Laser Welding

When a company starts exploring handheld laser welding, one of the first questions that usually comes up is:

Does handheld laser welding require shielding gas, or can it weld without it?

It's a perfectly valid question, especially for companies familiar with traditional welding processes such as MIG/MAG or TIG, where shielding gas plays a key role in weld quality.

The answer is straightforward: yes, handheld laser welding typically uses shielding gas, as it protects the weld pool and helps produce cleaner, stronger, and higher-quality welds. However, its purpose and consumption differ significantly from those of conventional welding processes.

In this article, we answer the most common questions about the use of shielding gas in industrial laser welding.

Why Does Laser Welding Use Shielding Gas?

Shielding gas plays a crucial role during the laser welding process.

Its primary function is to protect the molten weld pool from atmospheric oxygen, preventing oxidation while helping to produce cleaner, more stable, and higher-quality welds.

Depending on the material and the application, the most commonly used shielding gases are argon and nitrogen, with the gas flow rate always adjusted according to the manufacturer's recommendations.

What Gas Is Used in Handheld Laser Welding?

The most commonly used shielding gas is argon, as it provides excellent protection when welding materials such as stainless steel, aluminum, and carbon steel.

In certain applications, nitrogen can also be used, particularly when the material and welding process allow it.

The choice of shielding gas depends on several factors, including:

The material being welded.
The thickness of the workpiece.
The required surface finish.
The industrial application.

For this reason, it is always recommended to follow the manufacturer's guidelines and select the most suitable shielding gas for each specific application.

Can You Perform Laser Welding Without Shielding Gas?

Although this is one of the most frequently searched questions online, the reality is that most industrial laser welding applications use shielding gas to ensure maximum weld quality.

In certain highly specific applications, it is possible to produce welds without shielding gas. However, whenever a clean, consistent, and professional weld is required, using shielding gas remains the recommended solution.

For this reason, when choosing a handheld laser welding machine, it is far more important to evaluate the quality of the equipment and its technology than to focus on eliminating the use of shielding gas.

Which Handheld Laser Welding Machine Should You Choose?

At LC Lasers, we develop a range of handheld laser welding solutions designed to meet the requirements of different industries, applications, and production environments.

LC-WELD NEO

Our most compact and lightweight laser welding machine.

Thanks to its air-cooled design, it offers excellent mobility throughout the production facility, making it the ideal solution for companies looking for a portable, efficient, and low-maintenance welding system.

It is available in 800 W, 1200 W, and 1500 W versions to suit different material thicknesses and industrial applications.

LC-WELD PRO

Designed for companies with more demanding production requirements.

Unlike entry-level systems, the LC-WELD PRO features water cooling, ensuring consistent performance during intensive production cycles and continuous operation.

It also includes advanced features such as connectivity, cost tracking, user management, and extensive customization options.

Conclusion

Handheld laser welding has become a major technological advancement for modern manufacturing thanks to its precision, speed, and ease of use.

While shielding gas remains the recommended choice for most industrial applications, selecting the right laser welding machine is equally important to ensure an efficient process and consistently high-quality welds.

At LC Lasers, we offer a complete range of handheld laser welding solutions, from compact air-cooled systems such as the LC-WELD NEO to high-performance water-cooled machines like the LC-WELD PRO, designed for the most demanding industrial production environments.

All of our systems share the same goal: to maximize productivity, weld quality, and long-term reliability in industrial laser welding.

Frequently Asked Questions

Does Handheld Laser Welding Always Require Shielding Gas?

For most industrial applications, yes. Shielding gas protects the weld pool from oxidation, improves weld appearance, and contributes to stronger, more stable welds.

In certain specialized applications, welding without shielding gas is possible, but it is generally not recommended when a high-quality professional finish is required.

What Gas Is Used for Handheld Laser Welding?

The most commonly used shielding gas is argon. In specific applications, nitrogen may also be used.

The correct choice depends on the material being welded, the workpiece thickness, and the desired weld quality.

What Materials Can Be Welded with a Handheld Laser Welder?

Handheld laser welding systems can process a wide range of materials, including:

Stainless steel
Carbon steel
Aluminum
Galvanized steel
Titanium
Other metal alloys, depending on the application

Selecting the correct welding parameters and filler wire is essential for achieving the best possible results.

Which Handheld Laser Welder Is Best for My Business?

The ideal machine depends on your production requirements, the materials you process, and your intended application.

LC-WELD NEO: Ideal for companies looking for a compact, lightweight, air-cooled solution.
LC-WELD PRO: Designed for demanding industrial applications and continuous operation thanks to its water-cooled system.

Is Handheld Laser Welding Difficult to Learn?

No. Modern handheld laser welding systems feature intuitive user interfaces and preconfigured welding parameters that significantly reduce the learning curve.

However, operators should always receive appropriate training to ensure safe operation and to maximize the machine's performance and capabilities.