Welding process

The most important welding processes at a glance

Welding arc close-up

Overview of welding processes

Various welding processes can be used to establish a permanent and stable join between metals. The best-known methods are MIG/MAG (metal inert gas or metal active gas), TIG (tungsten inert gas), and manual arc welding (MMA).

Modern multiprocess devices are capable of performing all three processes to a high level of quality and therefore cover a particularly wide range of applications.

What other welding processes are available?

Alongside these standard processes, specialized methods such as laser welding and plasma welding are also used. The ideal welding process depends on the material, component, and production process. The weld seam profile is equally important because different profiles are required depending on the geometry and demands of the component.


Weld seam profiles

Welding produces different weld seam profiles, depending on the component geometries and the process used. The most important weld seam profiles are the butt weld, lap joint, fillet weld, and corner weld.
Each weld seam profile has specific advantages and disadvantages in terms of strength, accessibility, distortion, and cost effectiveness. The profile selected depends on the component design, load, and welding process used.

Welding seam

Welding process

MIG/MAG
Fast and efficient even with thicker materials—ideal for steel and plant construction
TIG
Perfect for clean and precise welds on thin sheets and high-quality metals such as stainless steel and aluminum
MMA welding
Robust and flexible—especially suitable for use outdoors and on construction sites in all weathers
Plasma welding
More efficient than conventional TIG welding: higher welding speed and deeper penetration coupled with less filler material
MIG/MAG
Fast and efficient even with thicker materials—ideal for steel and plant construction
TIG
Perfect for clean and precise welds on thin sheets and high-quality metals such as stainless steel and aluminum
MMA welding
Robust and flexible—especially suitable for use outdoors and on construction sites in all weathers
Plasma welding
More efficient than conventional TIG welding: higher welding speed and deeper penetration coupled with less filler material

Fronius products

Fortis
With up to 240 optimized characteristics that have been specially developed for the requirements of steel construction, the Fortis series impresses with its reliable welding performance.
iWave
Top quality for every weld and every material. With its targeted heat input and improved ignition function, our iWave gives you unbeatable control over the arc.
Go to iWave automated
iWave 500A ACDC watercooled TIG
Ignis Battery
Thanks to complete independence from the energy supply, you can rely on a stable and high-performance welding process for both manual arc and TIG welding with innovative battery technology.
More about Ignis Battery
Ignis Battery 150 -170

How to choose the right welding process

MIG/MAG, TIG, or MMA?


When should you use which welding process? Take a look at our blog to find a detailed list of the corresponding application areas.
Find out more about welding processes
Welding outdoor with Ignis Battery