Heat treating to remove stress
Posted: Tue Mar 23, 2010 12:32 am
I stick weld mild steel, 1/8" to 1/4" thickness, using 6011 or 7018 rod.
Sometimes I have a need to reduce the stress that arc welding puts at the joints.
Proper heat treating often requires an oven, where you heat the piece to 550C - 700C, keep it at that temperature for an hour, then cool it slowly.
I don't have an oven, and don't plan to get one.
If I use a torch to heat joints, then wrap the area in fiberglass insulation so that it retains heat for some time....will that at least do a partial job of stress reduction? Or is this a waste of time?
Do I have other options, or is a proper oven the only choice?
Thanks in advance.
Sometimes I have a need to reduce the stress that arc welding puts at the joints.
Proper heat treating often requires an oven, where you heat the piece to 550C - 700C, keep it at that temperature for an hour, then cool it slowly.
I don't have an oven, and don't plan to get one.
If I use a torch to heat joints, then wrap the area in fiberglass insulation so that it retains heat for some time....will that at least do a partial job of stress reduction? Or is this a waste of time?
Do I have other options, or is a proper oven the only choice?
Thanks in advance.