Welding Symbols & Residual Stress

Spot Welding:
V groove :
K groove:
X groove:
II I groove:
Flare:
K flare:
Frange:
Double frange:
Filled Weld:
Weld Bead:
Site welding:
Full circle welding:
Full circle fillet welding:


Flux ingredients take out impurities from molten pool as slag

During welding Residual stress develop in Weld Bead and Heat Affected Zone.
Residual Stress:
It is sum of all the welding stresses types.
1. Stress due to higher heat in put.
2. Stress due to higher coaling rate or rapid coaling of weld after welding.
3. Stress due to impurities and gases which enter molten pool during welding.
What is Molten Pool (when molten pool solidifies after coaling it becomes weld bead).


Posted by: Adnan