Been looking forward to your latest video. I know how hard seasoned Blue Gum is. Impressive how deep the axe was biting, especially in the limbs that weren't braced.
Thanks. Thin keen strong edge facilitated such chops. It seem this 1080 would/could support higher specs - I will buy a new axe and sequence to 65+ and put 14* bevel, 12.5 dps edge.
This is very cool! 64 rc must be top of the range hardness for 1080. Looks like it performed really well and to me says at least 60 rc is good for most axe uses. Makes me want to reheat treat some axes. Only ever done it with a cheap Mexican made axe that wasn’t hardened at all.
Thanks. Agreed 60+rc is good for most axes, which provides sufficient strength to support thin bevel/edge geometry - inverse proportional rc to edge thinness. seasoned (and partially dried) blue gum has similar janka hardness as rosewood, so edge geometry in video it need 63+rc. Keep in mind, bad trade for hardness/strength giving up too much elasticity+plasticity (99.99% of time via conventional/std ht protocol) almost guarantee to crumble this given edge geometry. I sure would interest to see how you re-ht result.
For context - please read: www.bladeforums.com/threads/council-tool-boys-axe-2-25lbs-chops-seasoned-blue-gum-experiment.1984807/
Oh you're back !
You always look strong and cheerful.
As usual, the heat treatment is great.
Thanks. I will post high alloy testing after getting some LN2.
Been looking forward to your latest video.
I know how hard seasoned Blue Gum is. Impressive how deep the axe was biting, especially in the limbs that weren't braced.
That's what got me.
I have no experience with blue gum, but biting that deep even with all the energy loss is really impressive.
Thanks. Thin keen strong edge facilitated such chops. It seem this 1080 would/could support higher specs - I will buy a new axe and sequence to 65+ and put 14* bevel, 12.5 dps edge.
This is very cool! 64 rc must be top of the range hardness for 1080. Looks like it performed really well and to me says at least 60 rc is good for most axe uses.
Makes me want to reheat treat some axes. Only ever done it with a cheap Mexican made axe that wasn’t hardened at all.
Thanks. Agreed 60+rc is good for most axes, which provides sufficient strength to support thin bevel/edge geometry - inverse proportional rc to edge thinness. seasoned (and partially dried) blue gum has similar janka hardness as rosewood, so edge geometry in video it need 63+rc. Keep in mind, bad trade for hardness/strength giving up too much elasticity+plasticity (99.99% of time via conventional/std ht protocol) almost guarantee to crumble this given edge geometry. I sure would interest to see how you re-ht result.
So you took an axe and redid the heat treatment ?
Yes, for context - read this bladeforum thread: www.bladeforums.com/threads/council-tool-boys-axe-2-25lbs-chops-seasoned-blue-gum-experiment.1984807/
Hello Luong La, Do you heat treat this axe as a whole or as a part?
It's fully/whole hardened, whereas factory was edge hardened.