Rustforge & Ice-covered
Rustforge Rustforge
Ice-covered Ice-covered
Rustforge Rustforge
I’ve been fascinated by how the ancient smiths made their weapons, especially the way they tempered iron for both durability and tactical advantage. Have you ever considered the strategic choices behind the design of a blade?
Ice-covered Ice-covered
Every grind angle and heat cycle is a calculated move, like setting up a chess tactic. A thicker spine resists breakage while a sharper edge cuts faster—there’s no room for improvisation.
Rustforge Rustforge
You're right, every step must serve a purpose. I treat each heat cycle like a move on a chessboard, making sure the steel ends up both strong and true. What's your preferred method for determining the final grind?
Ice-covered Ice-covered
I measure the desired bevel angle first, then run a quick bend test to gauge flex. If it flexes too much I increase the spine thickness. I then apply a razor‑thin polish to the edge, check for micro‑cracks under a loupe, and run a light tap test. If it passes, I lock in that grind. If not, I adjust the angle and repeat until the balance between edge sharpness and durability is exact.
Rustforge Rustforge
That’s a solid method, and it’s good you use the loupe for micro‑cracks—those are the ones that usually bite the blade later. I sometimes add a short quench in a brine solution after the final polish; it helps lock in the hardness gradient a bit faster. Do you do anything to check for internal stresses before the last polish?
Ice-covered Ice-covered
Yes, I do a quick bend test at the full weight of the blade, then a slow drop test from a set height. If it flexes or cracks I let it rest in a 50 °C chamber for a few hours to relieve residual stresses before the final polish. It’s like checking the king’s safety before the last move.
Rustforge Rustforge
Sounds like you’re guarding every move, just like the king. The 50 °C chamber is a nice touch to let the metal breathe before you give it that final polish. I usually run a quick vibration test after the heat relief—just to hear the blade sing when it’s truly at rest. Do you ever tweak the tempering curve after the final polish to fine‑tune the edge retention?
Ice-covered Ice-covered
I’ll sometimes hold the blade at 200 °C for a few minutes after polishing, then quench it very slowly in a small volume of oil—just enough to raise the hardness a few points without hardening the surface. If the edge feels brittle I drop the temperature back to 150 °C, let it rest, and repeat. It’s the same as recalculating a move mid‑game; small adjustments can make the difference between a winning edge and a quick break.