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| Shop Talk - BladeSmith Questions and Answers The art of knife making- advice on methods, supplies, and materials |
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#1
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This is one feature I really like about wrought iron. The ability to take different colors and tones.
The blue one is copper/acid etched then heat blued at 550fh for 12 min. The purple one is copper/acid etched then heat blued at 625 for 10 min. ![]() ![]()
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#2
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Cool, I like that blue one alot
maybe its time for me to start learning about bluing and etching |
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#3
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COOOOL!!! Nice job
__________________
http://indiangeorgesknives.com/ Indian George Rebello Founder and President of the Southern New England Knife-maker's Guild. Our sub-forum http://knifedogs.com/forumdisplay.php?f=83 Come join us. ![]() Member of N.C.C.A. |
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#4
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Very nice.
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http://www.jmoyerknives.com |
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#5
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Nice.
Will the colour stay or will it wear off? |
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#6
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Heat induced coloring is fairly tough. You have to sand it off. Just about like a gun finish. The blues and purples are more resistant than the straw colors.
Fred |
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#7
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Fred those are nice! How do you do the copper etch again?
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http://brucebumpknives.com/ my subforum: http://knifedogs.com/forumdisplay.php?f=60 |
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#8
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Bruce,
I use a diluted Ferric Chloride x H2O [50x50] with finely ground copper added. It doesn't seem to matter how much you add but you have to add new each time you use the process. I grind about 1/2" from a 3/4" wide by 1/4" thick copper flat and add that to a pint mixture. I have been leaving the guards in this mixture for 10 or 12 minutes. I remove them, clean and give them a light once over with 4x0000 wool, then put them in the ht oven. I am still expermenting, but I am encouraged by the results, so far. Fred |
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#9
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Thanks for sharing Fred, I'll give it a try. One more thing, I hear that WI needs hours of soak time to get the layers to show. What up?
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http://brucebumpknives.com/ my subforum: http://knifedogs.com/forumdisplay.php?f=60 |
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#10
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Fred, what does the copper do to the mix, if you are heating it after the dip?
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#11
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Quote:
The color on the edge is uninterupted when I do this with the face of the guard showing the pattern. I may try a longer soak and see what the results are. I would also like to try some other metals besides the copper to see what happens. Experimenting in the knfe shop makes one feel like a "mad scientist" at times. I think this trait resides in most makers. Fred |
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#12
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Quote:
The copper adheres to the surface, of the guard, while in the etchant. When you follow this up with a heat activated coloring the copper shows thru where it has platted the surface of the guard. The copper is not affected at the temperatures used in the heat treating. Fred |
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#13
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Cool,, Thanks Fred
I'll add this to the knife making site, I hope more info comes from this thread
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