Blades for the No 98 hardened, tempered, cryogenically treated and now ground and polished. Pictures of finished planes to follow shortly.
January 10, 2019
May 14, 2014
Window to my Workshop 79
Blades back from heat treatment. They have been vacuum hardened and triple tempered, followed by a two hour nitrogen soak. Note that there is no colouration to the blades, which means there were perfect conditions with no leakage.
Now they ‘just’ need polishing and surface grinding.