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Post by Deleted on Oct 29, 2009 13:15:33 GMT
Hi,guys I have a little problem here and I'm seeking advise from you guys I did a few cuts with my Hanwei Bamboo Snake on milk-bottles and 2lt soft drink bottles.The harder plastic on the soft-drink bottles gave a few scratches on my blade(due to poor cutting technique). My problem is that I started to polish out the scuff marks on the blade and didn't see that I was starting to polish on the satin finish of the blade.The shinogi-ji is a mirror finish and the ji is a satin-finish. So is there a way to restore the satin finish without much trouble. The blade is folded K120C swedish powder steel. The blade has natural hamon via traditional clay temper. If i'm correct the hada(grain) is natural and not chemically etched. I attach a few pics of my blunder Your advise is always highly appreciated!!!
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Post by Deleted on Oct 29, 2009 16:18:00 GMT
I don't think the scratches are because of bad technique. Plastic scratches swords when cutting.
You are going to have a difficult time repairing the scratches and keeping the repair spots matching the remainder of the blade. A complete polish might be needed to make a uniform finish. If you cut again, new scratches will occur. Best bet - don't cut with a blade you want to keep new looking, otherwise consider that the scratches "add character".
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Post by Deleted on Oct 29, 2009 16:49:15 GMT
Thnx, Oogway for your advise and quick reply.I don't intend to cut anymore with this sword as I'm buying a Cheness Tenchi in December for that purpose My only problem now is to restore that small part of the satin finish,the scratches that is there don't bother me so much.
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Post by Deleted on Oct 29, 2009 19:55:24 GMT
That said, you want to use the least risky (destructive) methods first. You might try a metal polish such as flitz. It is non-abrasive so it may not do anything if there are actual scratches. There is a polish with very fine abrasives called pikal. The grit is less than 1 micron in size and it is used on electronic microscopes.
Next is uchiko, or the powder ball in a sword maintenance kit. Cheaper kits do not contail real uchiko, which is a powdered stone used in sword polishing.
Using these three things, in order, may or may not help depending on how deep the scratches are buy none of them will damage your blade if used properly. The next step after that might be some very fine grit sandpaper, maybe 2000 grit, but you would probably have to use it on the entire length to get a uniform result. Refer to hybrid polishing using the search option for links to instructions in this forum. You also might try hand buffing with jewelers rouge.
Hanwei uses an acid-etch on the hamon so I am afraid that the sandpaper may remove the milky whiteness of the etch and make the blade look different.
For specific instructions on polishing, you might want to send a message to Aaron Justice (spelling?) at this forum. He refinishes blades for Dynasty Forge and might have better tips for you then mine.
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