Bonjour,
Rappel des exigences de l'ASME IX QW-360
QW-360 WELDING VARIABLES FOR WELDING OPERATORS
QW-361 General
A welding operator shall be requalified whenever a change is made in one of the following essential variables.
There may be exceptions or additional requirements for the processes of QW-362, QW-363, and the special processes of QW-380.
QW-361.1 Essential Variables - Automatic Welding
(a) A change from automatic to machine welding.
(b) A change in the welding process.
(c) For electron beam and laser welding, the addition or deletion of filler metal.
(d) For laser welding, a change in laser type (e.g., a change from CO 2 to YAG).
(e) For friction welding, a change from continous drive to inertia welding or vice versa.
(f) For electron beam welding, a change from vacuum to out-of-vacuum equipment, and vice versa.
QW-361.2 Essential Variables -Machine Welding
(a) A change in the welding process.
(b) A change from direct visual control to remote visual control and vice-versa.
(c) The deletion of an automatic arc voltage control system for GTAW.
(d) The deletion of automatic joint tracking.
(e) The addition of welding positions other than those already qualified (see QW-120, QW-130, and QW-303).
(f) The deletion of consumable inserts, except that qualification with consumable inserts shall also qualify for fillet welds and welds with backing.
(g) The deletion of backing. Double-welded groove welds are considered welding with backing.
(h) A change from single pass per side to multiple passes per side but not the reverse.
La différence réside dans la modification possible des paramètres en cours de soudage :
Machine welding or Mechanised welding :- Adjustment during welding possible
Automatic Welding :- Adjustment during welding not required
Cordialement,