ISO/TR 17671-4 gives general guidance for the satisfactory design, production and control of welding and details the possible detrimental effects which may occur, together with advice on methods by which they may be avoided. Generally it is applicable to all types of aluminium materials and is appropriate regardless of the type of fabrication involved, although the application standard/contract may have additional requirements.

This part of ISO/TR 17671 details only welding-related matters and does not give any details of mechanical properties of the welded joint. It identifies the main factors that affect the welding of aluminium.

This part of ISO/TR 17671 gives general recommendations for the manual, mechanized and automatic fusion welding of wrought and cast aluminium alloys and combinations thereof.