WELDING GAPS
WELDING GAPS
(OP)
Hi everyone. We weld Hot Rolled steel, and we would like to know if there is a standard that allow us to determine the welding gap between two parts of same or different thichness. In another way what is the necessary gap and tolerances that we need between two part in order to weld them and obtain a good penetration ( of course we will set all the other factors, Amp, v,...).
Is there a web site that discusses the welding gaps and tolerances.?
Thank you for your help.
M.T.
manuf. Eng.
Is there a web site that discusses the welding gaps and tolerances.?
Thank you for your help.
M.T.
manuf. Eng.





RE: WELDING GAPS
http://www.aws.org/wj/supplement/Jang03-01.pdf
Get a copy of the Procedure Handbook and Design of Weldments from Lincoln Electric https://ssl.lincolnelectric.com/foundation/ They have a lot of good material that will help you out.
RE: WELDING GAPS
The following is an over simplification. A simple rule for groove welds is to keep the gap (root opening) as small possible, normally 1/16" minimum, to get acceptable welds and minimize the amount of weld metal required. The gap is normally equal to the width of the land.
The following variables can affect the gap, configuration, welding process, thickness of material, type of material, position, electrode selection, groove shape, and several others.
The following websites offer very inexpensive books that cover everything you need to know about welding joint design.
I particularly like the Lincoln Books like the “Design of Weldments” by Blodgett. This book has a very extensive section on joint design.
Both sites off some very good books for study and reference at very attractive prices.
https://ssl.lincolnelectric.com/foundation/
http://www.welding.org/cart/training/techguides.htm
Come back with a little more detail in what you are trying to do and someone will provide more detailed information.
RE: WELDING GAPS
Thank you
M.T.
Manuf. eng