Since the guy with the welding torch certification is on leave for the next couple weeks, I am unable to heat treat the irons for my new moulding planes.
Or am I?
Larry Williams shows in his DVD heat treating some plane irons using a regular propane torch that you could get anywhere. While I was at the big box store today, I was looking at those. For a lot more money, though, I could get a MAPP torch which essentially is butane. This particular torch gets much hotter than a wimpy propane torch, more than 2300 degrees centigrade!
This ought to heat treat the crap out of my plane irons!
|I decided it might also be a good idea to get a new fire extinguisher.|
I think I'm all ready to go now: I spent my lunch hour the other day at the Army's woodshop grinding the untreated irons on their powered grinder, and finished the shaping today with a file. I think I have them pretty close. My guess is shaping them with a file is much easier than doing it after they are hardened.
|And the hollow. The iron is a bit overly proud here as I thought that would make a better photo.|
|Here is the endgrain of the cherry plane blank.|
|A little closer every day.|