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/diy/ - Do It Yourself



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File: IMG_20171128_115914.jpg (1.86 MB, 2736x4864)
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Made a knife
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what's the original piece?
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>>1291669

Are you fucking retarded? Holy shit.
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>>1291669
Plane iron.
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>>1291656
Do you slay gaijins with that, noble senshi?
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>>1291671
yes
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>>1291669
impromptly made spokeshave iron
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>>1291688

I am Russian. We do not kill anyone))
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>>1291671
>knives can only be made with a forge
>stock removal isn't a real knife
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>>1291651
Get a life.
Bin that knife.
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>>1291811
>set one of these up
>ebay all the free knives
>make tons of money
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why would you ruin a plane iron for this
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>>1291929

>set it up in the US
>come back next week
>completely broken open and robbed
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>>1291656

Good job anon , it's not the best looking or the most functional blade in the world but it's a good start. Keep making. Also only 3-4 cm of that blade are hardened by default . Did you rehardened it or you left it as it is?
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>>1291724
no its a plane iron
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circular saw blades work well for these type of knives
you will need tungsten carbide to drill it.
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>>1292592
>you will need tungsten carbide to drill it
I think it would make sense to anneal the thing before working it, otherwise you'll wear your sanding belts much more. It's not like hardening it and tempering is a particularly difficult process if you already have the materials to be knife making in the first place.
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>>1291669
Keyhole. Tiny knife as OP cock.
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bought an expensive knife it is still sharp AF
my diy knives are like butter compared to it
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>>1292592
15N20 usually need to be annealed, heat it up to 800C and then stick it in sand or vermiculite until its room temp. I've noticed it will also work harden slightly as well so keep your drill bits cool, same as drilling stainless.
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>>1292758
lmao
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>>1292663
>>1292767
too much work , why unhardend just to rehardend when the metal is prehardend to the best hardness
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>>1293178
I imagine a knife would ideally be hardened and tempered differently than a saw blade, but to each his own I guess.
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>>1293178
Because you don't know what the saw blade was hardened and tempered to in the first place. Each manufacturer probably has their own treatments for various steels and even the same steels so if you're trying to replicate a consistent result, you don't really learn anything from your own efforts.
The biggie though is, you place the metal under stress, while its hardened + tempered by grinding on it, the metal will form fractures and differential heats over various efforts of beating on it with grinders, sanders, etc that will knock some of that hardness out, leaving you with softer and harder sections.

15N20 is a really nice steel, it gets insanely fucking sharp and its damn tough, not so great corrosion resistance. However, you do need to anneal it before working, at least two normalisation cycles at 750-800C to air cooled. Then quench it in warm oil or it'll typically warp like crazy.
I tend to quench for 10 seconds, then air-harden it between two slabs of aluminium in a vice to knock out any warps, bends and wiggles
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>>1291811
UK must be a real shithole for these things to even exist.
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Finished. I'll think up a name and put it on the ebay
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The hardness of the metal is 54-58 on the Rockwell scale.
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>>1291811
I need that sticker in my knife shop to remind me I'm a lifeless amoeba doing the work of Satan.
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>>1294280
Thinking about doing up a vinyl and sticking it on my kiln, maybe the garbo bin would be a better spot because the kiln gets hot enough to peel flesh




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