Hello out there, I found this at finishing.com. Thought all of you
with the expertise could help this gentleman. Jake at Nikolas.
Our SSshot from our main supplier has been impinging the surface of
our sterling jewelry. The shot is a combo/mixture of shapes -
spheres,ballcones,enlongated speres,and pins of 302 stainless steel.
We use it in a vibratory bowl tumbler. The first thing I did was to
remove the pins. This helped a good deal. Then I added a bit more than
recommended burnishing solution and made the solution w/ less water.
Again this helped a bit more. The result here is mild impingement and
still the shot has difficulty reaching the recesed areas of the
design. The size of parts which comprise this steel shot mix are
large. a sphere = 4mm
Q. Would using smaller pieces of shot 2mm spheres or instance, reduce
the texturing produced by the steel?
Q. Is the problem not only the size, but the weight of the shot? What
about the hardness?
New Orleans, Louisiana, USA