PSA: I saw a guy in Denver last week using a torch to heat his stock for a twist. Just stop it.

Three years ago I tried that shortcut on a gate hinge and the grain went all wrong. Use the forge. It heats the whole piece, not just the outside. Anyone else see this junk and want to yell?

2 comments

2 Comments

tylerw721mo ago

Yeah, the grain going all wrong is the worst. I had a buddy try to heat-treat a knife blade with a propane weed burner once, and it came out looking like a topographic map.

-1

charlie_fisher451mo ago

Read a forum post about someone trying to temper with a kitchen oven and getting the same wavy grain. They just didn't get it hot enough for a proper austenitize before the quench. Makes you respect the guys with real heat treat ovens even more.