My supplier delivered my order of Nickel Silver today. I formed a quick cover to see how well the low temperature silver solder works. Then on to the buffing wheel. I'm using #5 soft compound but cannot seem to get the buffing wheel marks out. You can see them in the photo below. I've had the same issue with polishing brass as well.
Anyone familiar with working with Nickel Silver want to share some tips?
Thanks,
Don Goguen
Tags:
Don, that’s cool you know of the dangers.
For all others Buffing is a very dangerous operation.
Buffing chains or a pickup with wires tangling could grab and cutoff fingers or worse. Always hold items in such a way that it can be easily pulled from the fingers.
All please read how to buff. When I went to a trade school for musical instrument repair there was a guy with missing fingers from the buffer grabbing a cornet and took fingers with it.
There’s a lot from the knife makers about buffing we could learn from.
Cheers
Bob
Don Thompson said:
Bob, thanks, In my previous life I was a jeweler and then ran a metal polishing shop for ten years.
Don
I've found that getting a good clear coat is not that easy on small items.
I used a touchup spray gun initially, but really wasn't happy with the end result.
The best I've found is a Hi Gloss Enamel clear coat made by Galmet, in a spray can (part number: GSPCLA350).
Of course you then have the problem of whether you got a good fine spray tip on the can.
Might pay to look through a Stew-Mac catalogue to see if they have anything better.
There are two different steps to polishing nickel silver. First you need to buff it. This is the process to remove scratches and and get a smooth surface. Buffing actually removes metal and if you over buff, then you thin the part. If possible, try buffing the piece before you solder it, then do a second buffing. Keep your buffing wheel clean. When not in use store it in a zip lock back to avoid contaimination. Nickel Silver, Gold, and Silver are generally buffed with a Tripoli compound. I like to use a heavy stiched muslem or cotton wheel for buffing Nickel Silver. I find a sisel wheel has a heavier cutting action and can sometimes scratch the piece.
The second step is polishing. I like to use a lightly sewn or loose cotton wheel for polishing. For Nickel Silver, Silver and Gold I use a red rouge compound. Don't overload your wheel, keep your wheel clean and store in a zip lock bag when not in use. http://www.dadsrockshop.com/compounds_acc.html http://www.riogrande.com/
Here is a nice article that goes over buffing and polishing of various metals.
http://gemstone.smfforfree4.com/index.php?topic=1010.0;wap2
Hope this helps.
Brian Hunt.
You can find the compounds you need at a good jewelry supply or lapidary store.
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