Issues with Crossed weld 1

[SukhpalSingh]

Can someone mention the main issues when we make welding over exiting weld for low alloy steel?

 

[kingnero]

geometrical issues, practical issues,
but I think what you're referring to is tri-axial state of stress in the weld.

 

[SukhpalSingh]

Thank you for replaying, I actually concern about the micro-structure issues such as double hardening. So if you have any reference about this topic that you can mention it to me?

 

[Tmoose]

Hi SukhpalSingh,

In my opinion you have not given us much to go on.

I'm trying to think about reasons why such a weld might be made.
All I came up with is a weld repair, like applying a hard overlay, or restoring a worn bearing journal prior to machining etc.

 

[racookpe1978]

How thick is the welded areas, how long, how much energy is going back into the double-welded volume?

What materiel, what PWHT, what filler, what is the function of the assembled product and how will it be NDE and weld-prepped?

Double-welding may be trivial, may be critical, may be prohibited. Or not.