Советский нож времён 2 мировой войны, выкованный из трака танка

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vOFF4ik
vOFF4ik78432189

    Soviet WW2 Knife Forged From Tank Tracks
    The idea of this project is to make a ww2 soviet knife (design based on the NR-40 knife) out of a piece of ww2 soviet tank (SU-76 tank).
    This turned out to be a great excuse to practice with some damascus as the track steel is not hardenable. To remedy I laminated a core of 15N20 steel making a san mai damascus billet with tank steel on the two sides. I love the end result and I am also super happy with how this damascus forged without a problem, no doubt my most successful billet to date!
    The guard is made out of a srap piece of 1070 high carbon steel and a small block of mild steel just under that.
    The handle is made of zebrawood with a thin red vulcanized fiber liner and one steel pin to hold everything together.
    Index of operation and materials:
    1:30 Cutting a piece of track with angle grinder and cut off disk
    2:20 Trying to flatten this first piece, the shape was too inconsistent
    2:56 Cutting a better piece
    3:20 Forging flat and mostly square
    3:58 Grinding one side flat and clean
    4:14 Squaring up and cutting two strips
    4:40 Cleaning the 15N20 core strip
    4:50 Assembling and stick welding the billet
    5:15 Fluxing the billet with borax each heat
    5:33 Forge welding the billet
    5:52 Drawing out keeping everything nice and straight to avoid pattern deformation
    6:03 Isolating tang material
    6:12 Forging tip of the knife
    6:30 Profiling on the 2x72 belt grinder
    7:02 Grinding sides flat, off camera I’m checking with ferric chloride to keep the 15N20 centered.
    7:20 Grinding bevels and false edge
    8:08 Hand sanded to 320 grit off camera
    8:18 Heating up to 800°C with 15min soaking time
    8:20 Quenching in vegetable oil
    8:33 Tempering for 1.5hr at 200°C
    8:41 Hand sanding up to 800grit
    8:56 Etching in ferric chloride
    9:06 Polishing the 15N20 with high grit sandpaper
    9:30 Cutting 1070 guard material
    9:40 Center punching
    9:47 Drilling holes
    9:56 Sizing the hole to fit the tang
    10:08 Shaping the guard with belt grinder
    10:27 Bending the guard to look like a NR-40 knife guard
    10:49 Drilling tang holes in zebrawood
    11:26 Drilling pin hole
    11:38 Glueing everything with epoxy resin
    12:04 Cutting pin
    12:12 Grinding flat surfaces
    12:20 Cutting excess handle material with bandsaw
    12:34 Shaping handle with belt grinder
    15:56 Refining shape with files and sandpaper by hand up to 1000grit
    13:33 Boiled linseed oil as finish
    13:44 Sharpening with «MadEdge» stone system

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