Welding Allowed maxium oscilation in SMAW vs GMAW

[JBCZL]

Why in SMAW process the maxium oscilation is 3 times the electrode diameter and in GMAW process is 8-9 times?

Ussually SMAW diameters: 2.5, 3.25, 4 and 5
Ussually GMAW diameters: 1.2

I think the answer is in ASME CODE (maybe IX), but I can not remember where

Many thanks

 

[gtaw]

It isn't.

It's one of those wives tails, like the one about driving moisture out of the steel before welding it.

Best regards - Al

 

[JBCZL]

Where can I find these limits? I think in ASME IX there are, but I do not where.

Many thanks

 

[GRoberts]

No weaving limits are listed in ASME IX. That is the wives tale part.

 

[gtaw]

The limitations for prequalifcation for AWS are found in AWS D1.X , i.e., D1.1 for structural steel, D1.2 for Structural Aluminum, etc.

Best regards - Al

 

[JoeTank]

Oscillation is not a variable for the SMAW process. Are you referring to a weave bead technique, as opposed to a stringer? It is often stated that the weave bead should be no wider than three times the electode diameter. That is a common industry practice, but it is not in the ASME IX Code.

Joe Tank