Aluminum Welding

We have specialized in demanding welding works and projects with TIG and MIG equipment for various aluminum parts and configurations. We weld aluminum (for example marine aluminum AW-5754, structural aluminum AW-6082 and cast aluminum parts) with expertise. Whether your piece is small or large, new or old, get in touch!

Combined with our other services, we are able to offer demanding and versatile components that combine pipes, sheet metal parts and machined parts.

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Design Recommendations for Welded Aluminum Structures

Due to the low specific heat capacity and low melting point of aluminum, it is recommended to a thickness of at least 1 mm in sheets and walls in the structures. In large pieces, thicknesses of 2 mm are recommended to avoid drag. You can read more from standard SFS-EN 1011-4. (Welding. Recommendations for welding of metallic materials. Part 4: Arc welding of aluminium and aluminium alloys)

Aluminum Alloys and Their Weldability

From the most common alloys in the 5000 and 6000 series, it is advisable to select blanks in practice according to availability, most are suitable for welding. The selection and availability of sheet blanks and profiles can be checked from the websites and catalogs of Alumeco, Tibnor, Al-Men, Purso and Timgrei. The most common alloys are EN AW-5083, EN AW-5754, EN AW-6060, EN AW-6063 and EN AW-6082.

Some cast aluminum alloys are challenging to weld.  Even if suitable for welding some problems can arise from high alloying contents, pores and drag of the material. Pre-heating and the right welding equipment help achieving a reasonably good result in these cases as well.

To ensure good corrosion resistance and for example achieving aesthetic anodizing appearance, it is advisable to use similarly alloyed aluminum wire when welding. We keep various alloys in stock to ensure a fast delivery time.

Our Welding Equipment