Weldability standards specific to aerospace construction
Metallurgical assembly in jet engine construction

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Weldability standards specific to aerospace construction


Metallurgical assembly in jet engine construction

Author : Jean-Pierre FERTE

Publication date: January 10, 2006 | Lire en français

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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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