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I Forge Iron

jmccustomknives

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Posts posted by jmccustomknives

  1. I have personally noticed the price of some materials has went up.  But because of those shows so has the price I've been getting.  So in that it's all good.  Rockstar is right about the economy, if it wasn't for government jobs we'd starve.  And that's a bad thing. 

    Anyway, back to the topic.  It isn't going to take long to weed out those guys brought in by the shows.  A little sweat and a few burns and they'll go back to the video games.  :P  Those that have the staying power, that's a good thing.

  2. In my opinion the layer count seems to look best in the 80-200 range.  Like you I hand forge my billets and don't want to over work myself.  There are several things that can enhance the pattern.  Two such things are blade style and handle material/style.  A small thin blade doesn't typically look good with a low layer count, while a large chefs knife can.  Look around a blades you like and try to copy those styles.

  3. When it comes to Propane, butane, Ametalyne and MAPP, they are all so similar that they interchange.  MAPP is just propane that has some additives to get a few more btu's.  Gasses like propylene and acetylene however are different and may require different orifices/pressures to get a proper air/fuel ratio.  Butane has a higher boiling point than propane so it's more prone to pressure drop if it's drawn too fast.

    It's always wise to stay within the manufactures guidelines until you have sufficient knowledge as to not hurt yourself.

  4. Ok, time to throw some water on this.  You can price it however you want, the market will dictate what they will pay.  For the newb don't expect to get what an experienced maker gets.  Just as the experienced maker doesn't get what a Master Smith gets.  A knife is a duel purpose item, it is a tool and it is art.  As a tool, people who use them generally has a finite dollar they are willing to spend.  As an art piece the price really hinges on the artist name and the overall quality of the piece.

    So, as a newb, if you break even and are able to pay for your supplies your doing pretty good.  I recently saw on one website someone had posted a rather rough (even by my standards) Damascus knife for $750.00.  While I admire his "shooting for the moon" there are much higher quality items by known makers going fore less.  In other words, if he sells it at that price he needs to take the proceeds and buy lottery tickets.

  5. I generally pass on anything less than 9/16" in total diameter for knifemaking.  When the individual wires weld up a decarborized zone forms.  It comes out to .010 of the total diameter of the wires decarborize.  That means that if you have wires that are .25 almost half the carbon is lost during the welding process.  Given that cable will be from .65-.90 depending on grade you could end up with something that barely hardens to something that won't hold and edge at best.  I however do use cable like that for more artistic endeavors.

  6. Learning how to forge a blade before learning the grinding and heat treat is like writing a song before learning to play an instrument. 

    It looks like your welds went weld, but until you clean it up you'll never know.  I've got a couple of spools of cable like that (extra IPS), it makes decent enough knives.

    Now for the grinding and h/t, which will make the knife.

  7. On 4/25/2016 at 10:45 AM, Charles R. Stevens said:

    Tho the Hobart will weld circles around a Miller (despite having the same ratings the Miller will trip out a lot more if your pushing hard against the duty cycle) 1/4" with gas shielding and short welds is the practical limit (pre heating is a good idea at the upper limit as is making a tin can shroud to convert the cooling fan to a ducted fan) it certainly will disappoint you trying to weld 3/8"+. A yard sale tome stone will do you better, or a 220 Hobart mig. 

    I'm certainly not a welder, despite having 5 diferent units ;-)

    Hobart is owned by the same parent company as Miller now.  All a Hobart is now is a stripped down Miller, the migs even use the same consumables.  They do this to compete with Lincoln in the big box market as the Lincolns sold in those stores are made cheaper and in Mexico. 

  8. I'd think it was a tad small.  3/16" is the thickest it can handle with flux cored wire.  While you can make multiple passes it just doesn't have the amps to really dig in.  I'd think you'd want to stick weld it just because you'll need a 200amp + mig to do the job.  There are also things like duty cycle which is how long the machine can weld in a 10 min period (30% @ 90amps = 3 min out of 10).

  9. Heat the tang of the rasp like you would the whole thing and quench it in water (just the tang).  From there, do not temper but put it in a vice with the hardened tang sticking out.  Give it a tap with a hammer.  If it doesn't break but bends you've got a case hardened steel.  If it bends but is very tough then it's likely 4140 or something similar.  Either of those outcomes put those rasp in the art department and not for knives.

    Oh, wear your safety gear.  Don't want to loose an eye to flying metal.

     

    While I shy away from rasp I did have a good experience with a Heller.

  10. 1 hour ago, BIGGUNDOCTOR said:

    I was told my the materials guy at Nicholson to treat the machinist files like W-1 tool steel. They use a different alloy for the machinist files since wood and hooves are not as hard as steel. They have used the same alloys as long as he has been there - 45+ years.

    One problem I have with file knives is when the teeth are left on, since every one of them is a stress riser, and a crack waiting to happen.

    1st rule having to do with working with files, and I have made a bunch, I never forge on a file with teeth intact.  Rarely do I ever find it necessary to forge a file to shape anyway.  Every one of those knives pictured could have been done by stock removal.  That would have saved a lot of time, energy and effort.  ;)

     

  11. Well, to be sure in knifemaking learn stock removal first.  Why?  Even if you forge your blade your going to have to grind it.  Better to learn to get that part right (along with the heat treat) first.  Forging a blade has many pitfalls that can cause endless frustration and drive a man away from the craft.  Blacksmithing is a wonderful craft to learn, with it you will be able to take something and make it into something else.  It isn't only in knifemaking, but building artwork and tooling in which the skills can help make you a better rounded smith.

  12. There's a way to test them.  I'll heat the tang with a torch and quench in water then clamp it in a vice and give it a tap with a hammer.  If it bends over it goes in the scrap pile.  If it snaps clean it goes in the maybe pile.  Since manufactures used a variety of steels the performance cf the steels will also vary.  I've never found a bad old Nicholson or Black Diamond mill file.  Rasp on the other hand are a crap shoot.  I've found "reputable" brands that were case hardened so be wary and test all of them.

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