Design and structural engineering

Aluminium structures

Aluminium combines low density with high thermal conductivity and expansion, a stable oxide and strong dependence on alloy and temper. Professional design must use the properties of the weld and HAZ, not only those of the parent material.

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Topic overview

Aluminium combines low density with high thermal conductivity and expansion, a stable oxide and strong dependence on alloy and temper. Professional design must use the properties of the weld and HAZ, not only those of the parent material.

Are design properties, filler, WPS, cleanliness and tolerances based on the exact alloy and temper?

Oxide, water and hydrocarbons directly affect fusion and porosity.

High expansion requires minimum weld volume and a planned sequence.

What the module covers

  • Welded aluminium structures
  • 1. Why aluminium is not “lightweight steel”
  • 2. Material, temper and filler selection
  • 3. EN 1090-3 production chain
  • 4. Critical production phenomena
  • Aluminium production-readiness checklist
  • Practical rule
Educational content does not replace current standards, approved WPS/WPQR documentation or decisions by competent welding coordination personnel.