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Mocataugen (crooked knife) build along starts NOW!
Handforged:
--- Quote from: Hawkdancer on April 10, 2020, 12:50:37 am ---Like Russell! Only missing a forge! (f) (lol), quenching tank, a real anvil, and time! Watching closely!
Hawkdancer
--- End quote ---
If you've got a torch, a piece of railroad iron and a gallon of mineral oil, you can do it!
Mr. Woolery:
One of my perpetual frustrations with bent blades is the cross-section deformation. Flat doesn’t stay flat in cross section. I remember frustrating my Mechanics of Materials professor when I pointed out that plane sections don’t remain plane when a bar deforms. It is a lot harder to calculate strengths and for class purposes we could pretend, but it always annoys me to have a categorical statement made when I know it isn’t true.
My experiments have bounced between male and female forms just looking for minimizing that effect.
It is still below freezing today, but I hope to get in the shop tomorrow.
Patrick
Handforged:
--- Quote from: Mr. Woolery on April 10, 2020, 12:30:39 pm ---One of my perpetual frustrations with bent blades is the cross-section deformation. Flat doesn’t stay flat in cross section. I remember frustrating my Mechanics of Materials professor when I pointed out that plane sections don’t remain plane when a bar deforms. It is a lot harder to calculate strengths and for class purposes we could pretend, but it always annoys me to have a categorical statement made when I know it isn’t true.
My experiments have bounced between male and female forms just looking for minimizing that effect.
It is still below freezing today, but I hope to get in the shop tomorrow.
Patrick
--- End quote ---
Here is something to take into account. What you mentioned here is true, the cross section of steel does deform after it is bent. However, we do the bending when the steel is still in the annealed state (soft). Form your curvature THEN we thermocycle the steel, treating it like any other knife blade, to reorganize the carbon molecules within the blade. Three thermocycles on any handforging is average and minimum for me to "Normalize" the steel from the forces that have been imparted on it in the process of shaping and that does include bending it. So after normalizing the steel through thermocycles, we should be back to the same structure (internally) as when we started with a blank piece of steel. I know there is some debate there but I am speaking in broad strokes. This all in preparation for the final heat, quench and temper. Which if also done properly should result in the blade exhibiting the consistent hardness without stress points that we created be forging and bending it.
Russ:
--- Quote from: Handforged on April 10, 2020, 11:11:53 am ---
--- Quote from: Hawkdancer on April 10, 2020, 12:50:37 am ---Like Russell! Only missing a forge! (f) (lol), quenching tank, a real anvil, and time! Watching closely!
Hawkdancer
--- End quote ---
If you've got a torch, a piece of railroad iron and a gallon of mineral oil, you can do it!
--- End quote ---
well i got all that, but i lack something very rare, very very rare. permission.
Handforged:
--- Quote from: Deerhunter21 on April 10, 2020, 01:40:42 pm ---
--- Quote from: Handforged on April 10, 2020, 11:11:53 am ---
--- Quote from: Hawkdancer on April 10, 2020, 12:50:37 am ---Like Russell! Only missing a forge! (f) (lol), quenching tank, a real anvil, and time! Watching closely!
Hawkdancer
--- End quote ---
If you've got a torch, a piece of railroad iron and a gallon of mineral oil, you can do it!
--- End quote ---
well i got all that, but i lack something very rare, very very rare. permission.
--- End quote ---
Dominus Ominus…. I hereby bequeath permission. Get after it.
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