Non-essential variables are those that do not affect the mechanical or metallurgical properties of a weldment . If changed outside their qualified range a new procedure will not be required but the WPS has to be amended to reflect the new range before production welding takes place.
Nonessential variables are conditions in which a change, as described in the specific variables, is not considered to affect the mechanical properties of the ... |
30 нояб. 2016 г. · Thickness is an essential variable, but diameter is considered a nonessential variable. However, both must be listed on the WPS. |
Welding variables that do not have a profound influence on the mechanical properties of the weld or those that are associated with the skills of the welder are ... |
31 июл. 2024 г. · Nonessential variables are the aspects that a welder controls while doing the weld, such as arc length, manipulation techniques, travel speed, and gas flow ... |
16 мая 2024 г. · According to QW-251.3, nonessential variables are described as the variables if changed, maybe made in the WPS without requalification. The ... |
Оценка 5,0  (1) Welding variables are divided into essential, non-essential and supplementary based on their effects. Joint configuration, material groupings, consumables and ... |
Non-Essential Variables · Travel speed (within a specified range) · Shielding gas composition (within a specified range) · Base material composition (within a ... |
29 июн. 2016 г. · Non essential are those who doesn't have any impact on physical properties of work piece after welding ex cleaning media. |
13 мар. 2023 г. · Nonessential variables must be listed on each Welding Procedure Specification (WPS) and are defined as “those in which a change may be made in ... |
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