2. Weldability standards specific to aerospace construction

Standard NF L06-380, applicable to materials used in aerospace construction, defines the degrees of weldability and brazeability of these materials for welding and brazing processes and techniques.

Part 10 deals with the definition of the degree of weldability or solderability and the rules for determining it. The weldability of materials is assessed according to four degrees defined below:

grade 1: material with very good weldability requiring no special precautions. Preferred use;
grade 2: material with good weldability, but which may require special welding precautions (e.g. preheating, low feed rate, etc.);
grade 3: material with poor weldability requiring fine-tuning for each type of part and likely to lead to manufacturing hazards. Not recommended;...

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Weldability standards specific to aerospace construction

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Bibliography

References

(1) - MORGAN (E.J.) - Atmospher Control Criteria for Welding Titanium - . Conference Proceedings from Advanced in Welding Processes, Harrogate (1978).
(2) - SMITH (L.S.), GITTOS (M.F.) - A Review of Weld Metal Porosity and Hydrid Cracking...

Standardization

Aerospace series – Welded and brazed assemblies for aerospace construction – Weldability and solderability of materials – Part 10: General information. - NF L06-380-10 - 2-03
Aerospace series – Welded and brazed assemblies for aerospace construction – Weldability and solderability of materials – Part 20: homogeneous assemblies of aluminum and aluminum alloys. - NF L06-380-20 - 2-03
Aerospace series – Welded...