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Showing content with the highest reputation on 07/28/2023 in all areas

  1. Hi everyone, The long delayed forum upgrade finally happened. Apparently, there was a malware infection in the distant past that had left remnants around that prevented the upgrade. I found, isolated, removed and smashed those remnants with strong prejudice. Enjoy, Niels.
    3 points
  2. 2 points
  3. Here's a little peek at a test-assembly I did yesterday: The screws are temporary just to keep things in place. there will be bronze pins going through all of those holes. Now I need to put an edge on the blade while it can still be clamped in a knife sharpening jig without damaging any engravings, then I will proceed to engraving outlines of designs that will go on the blade... It is a step-by-step process.
    1 point
  4. Two more forging sessions and something is starting to come together. Here are the two edge bars from that billet. They are both hardenable, but have different carbon contents (maybe 0.6 for one and 0.8 for the other). I decided they probably wouldn’t play nice as the two edges on the same blade, so one will become a single edged blade, and the second will wait for a buddy to become a double edged sword. Speaking of single edged blades… if everything goes right, this will become a single edged Viking age sword. The blade is currently 71 cm, I think I can bump that up closed to 75 with a bit more forging, which was my original goal. It also still needs a wrought tang welded on, so hopefully one more session and this will be done. The watering can in the background was to wet down the floor, my shop thermometer said it was 113 F once the forge was running! At least it’s a dry heat I forgot pictures, but this afternoon I also processed another puck which now just needs to be drawn out to 3/8” square to join up with that other bar. My second sword core turned out to be some kind of old fashioned mild steel instead of wrought (I found out from my KITH knife), so I’ll also need to break down some more anchor chain too. I think the single edged sword will be a good stepping stone before I work on some double edged blades (I haven’t forgotten about the later medieval sword, don’t worry!).
    1 point
  5. At a guild meeting a couple months ago one of our members handed me a narsty-end offcut of a cu-mai billet he'd made and asked if I thought I could get a small fixed blade knife out of it. I said "Sure, I guess..." and he gave it to me. It was a bit thick for the size of blade I thought I could get out of it. It was about 2.5" x 3" with three good edges and the very end edge where the steels and copper all sort of tangled together, and about 3/16" thick. 80CrV2 core, copper, and the outer layers are 80CrV2/15n20 damascus in a raindrop pattern. I cut it into two longways and forged it thinner, down to about 0.120", and profiled out a little push dagger and a little trailing point skinner. The push dagger showed I didn't do good job when thinning it down, as the core got a bit off-center towards the point. It's not heat treated yet, but I gave it a test etch to see what I had. A little copper crosses the edge at the tip, but since it's not like anyone's gonna actually use it I think I'll finish it out one of these days. The skinner is surface ground to try and get the core centered better. Tiny, but cute. We'll see during HT if forging it down after the copper was in place did anything nasty to the steel. I did try to keep it around 1550 F or lower to reduce intergranular penetration, which is what copper does to steel at heat. That translates to hot shortness and prone to cracks, at both macro and micro scales. The test etch didn't show anything, but you can see a little weirdness on the skinner's tang, which was part of the gnarly end of the billet. I think that'll be fine, though, given its location.
    1 point
  6. Yeah, you just want a color that suspends in the epoxy without influencing the chemistry.
    1 point
  7. Sorry, I meant powders not intended for epoxy coloring. Those you use are fine!
    1 point
  8. Huh, I didn't know that. I've been using powders for years with no ill effects that I know of. Just a tiny bit goes a long way. Epoxy Colorants – Knife and Gun Finishing Supplies
    1 point
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