I read a spec by an extruder that they were capable of a "B2 finish
from the die, and with tumbling we can achieve an A3". I have never
heard these specs before for finish and can't seem to find anything
online. How does this relate to roughhness in Ra (microinches)?
Thanks a million!
Adam S
Posted by Newshound on May 9, 2006, 5:28 pm
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> Hi all, > > I read a spec by an extruder that they were capable of a "B2 finish > from the die, and with tumbling we can achieve an A3". I have never > heard these specs before for finish
Nor me, but it sounds a bit like the Sa classifications for grit blasting
(originally Swedish, I think, though widely recognised)
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>
> I read a spec by an extruder that they were capable of a "B2 finish
> from the die, and with tumbling we can achieve an A3". I have never
> heard these specs before for finish