Strip thickness tolerance
Strip thickness tolerance
(OP)
My customer asks for .147mm - .151mm strip product, i.e. the tolerance is +/- 1.34% (width 12''), saying another supplier can meet the tolerance. Is that possible? If yes, what kinds of equipment or practices are needed to accomplish that tight tolerance?





RE: Strip thickness tolerance
RE: Strip thickness tolerance
Chris
SolidWorks 13
ctopher's home
SolidWorks Legion
RE: Strip thickness tolerance
http://www.smt.sandvik.com/en-gb/products/strip-st...
... and it seems that this is not a science-fiction (at least for this supplier). Of course I assumed we are talking about steel.
How do they accomplish this? I do not know - I know almost nothing about metal strip manufacturing. But I know how to use google
RE: Strip thickness tolerance
RE: Strip thickness tolerance
lightweight, cheap, strong... pick 2
RE: Strip thickness tolerance
----------------------------------------
The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Strip thickness tolerance
ASTM (there are a huge number of tolerance specs based on materials), and ISO 9447 standard tolerances are much looser than what the custoemr is asking for. Our internal limits are much tighter than ISO tolerance, but still looser than the req's.
The only solution I could find was to cold roll wider than needed and to discard the out of tolerance material. but obviously, this means a substantial decrease in yield and a substantial increase in cost.
By the way, Google is a good tool for a general question, but hardly useful for an expert in the field.
P.S. Even the best tolerances listed by Sandvik can not meet my customer's req's.
At .0006'', a tolerance of +/- .00004'' sounds not that impressive, it is +/- 6.7%. My company can do .0006'' +/-.00003''.
RE: Strip thickness tolerance
Wouldn't this be a sheet?
Chris
SolidWorks 13
ctopher's home
SolidWorks Legion
RE: Strip thickness tolerance