A Guide Through the World of Welding Techniques

Whether you are building a bridge over the Scheldt or assembling a tiny medical instrument, everything depends on the connection. Welding is a discipline in its own right, a balance between heat, material and precision. But not every weld is the same.

In this blog, we dive into the world of joining techniques. We move from heavy-duty methods to microscopic precision, with a special focus on the technology of the future: laser welding.

MIG/MAG Welding: The Powerhouses of Construction

When we talk about the “heavy-duty work”, we are talking about MIG/MAG welding (Metal Inert Gas / Metal Active Gas). It is the most commonly used welding method in heavy industry, and for good reason.

• Application: Think of the steel structures of skyscrapers, enormous bridges and shipbuilding.
• How it works: A wire is fed continuously and melts in the electric arc. Because the wire itself acts as the electrode, you can keep welding for long stretches without stopping.
• Characteristics: It is fast and relatively easy to learn, but it introduces a lot of heat into the material. For a bridge, that is not a problem, but for fine, delicate work the distortion is often too great.

TIG Welding: The Aesthete of Industry

If you walk into a factory where high-quality piping for the food or chemical industry is made (pipe fittings), you will almost always see TIG welders (Tungsten Inert Gas).

• Application: High-end industrial installations, thin-walled stainless steel and aluminium.
• How it works: This method uses a non-consumable tungsten electrode. With one hand you control the torch, and with the other you manually add filler material.
• Characteristics: TIG welding is slow, but it produces the cleanest and strongest welds. It is pure craftsmanship. However, the heat input is still considerable, which creates challenges when working with very thin sheets.

Now we come to the specialty we work with every day at Tumag. Where MIG/MAG and TIG stop because the process becomes too coarse or too hot, laser welding begins. In 2026, this technique has become the standard for companies that do not want to compromise on quality and speed.