I am trying to stress relieve parts too large for a kitchen oven. How long does it take for 1/8" thick mild steel to turn cherry red under a hand operated propane torch? What areas should I heat up (e.g. the weld area, near the weld area, etc)? Is a propane torch bought at a hardware store a good diy way to do this? Will this process weaken the mild steel or welds?
Also, will this process remove the warp that occurs after the welds are done?
Thanks, |