6. Glossary

lamellar tearing; arrachement lamellaire

Cracking caused by shrinkage during welding, on wrought material with a high concentration of flattened, unfavorably oriented micro-inclusions.

chamfering; chamfering

Mechanical or thermal operation to geometrically prepare the edges of parts prior to welding.

section class; plasticity class

Numerical index (1 to 4) characterizing the ability of a bent beam section to tolerate the formation of a plastic hinge.

fatigue class

Allowable stress range at 2.10 ⁶ cycles characterizing a welded detail (or not) of realization conforming to a given quality level and assigned a probability of survival equal to 97%.

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