weld bead length tolerance

[mmolt]

Friends,

Question about weld bead lengths when explictly called out on a print.

On a drawing we have utilizing an 1/8" fillet weld, which joins two pieces of 1/8" Aluminum extrusion we also require the length of the bead to be 1/2". What does AWS or any other standard state about the length tolerance of the bead? I was looking through some AWS standards and couldn't find anything.

Thanks,

Mike

 

[MintJulep]

How could the AWS or any other standards writing body - who has absolutely no idea of the design or application - have any idea how much variation any particular design can tolerate?

Definition of tolerances of any dimension is a design engineering function, and as such must be done by the design engineer.

What is the minimum length that will provide the necessary strength?

 

[mmolt]

The minimum length in this case would be 1/2". Should I explictly place a tolerance in the text field below the weld callout reference line? I just assumed for typical welding as defined by the AWS standards that had a defined length, there would be a standard tolerance.

-Mike

 

[ctopher]

I depends on the type of weld and design. If it's a minimum length, call out a minimum length. Otherwise, design your parts around having certain welds.

Chris
SolidWorks/PDMWorks 08 2.0
AutoCAD 06/08
ctopher's home (updated 10-07-07)

 

[CheckerRon]

mmolt: For what it's worth, check out thread178-138587 which deals with this subject