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Letter 39022
Measuring surface conditions on anodized
aluminum extrusions
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I am a Quality Manager for a company that cast, extrudes, anodizes
and fabricates doors,windows and curtain wall (Aluminum Profile)
systems for the commercial building industry.
New to this industry, I have issues I am not familiar with --
One is how to measure Die Lines on extrusions and set a standard that
is not subjective.
Can I use a surface roughness tester to set a numerical standard for
pass/fail on die lines after extrusion?
Chris Finley
architectural structures - Dublin, GA, USA
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Does it really matter what a couple of crazy internet savvy
finishers think? Isn't it your customer that you should be asking
about what's important? Of course using a profilometer can quantify
the roughness of the extrusion but what about the depth or width of
the scratches or the density (scratches per square foot) for example.
The simple answer to your question is "YES" but the more difficult
question is "what determines quality in my customer's eye?"
++++++
Being in QC you already know that the only standard that wouldn't
be subjective would be "no die lines allowed", it either iz or it
ain't.
Now, how do we get past the customer(internal or otherwise) that
rejects a product because they don't like it, but you have a stack of
paperwork with test results that say that it's good? Someone needs to
write a chapter on that.
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Sheldon Taylor
supply chain electronics
Wake Forest, No. Carolina
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Dear Reader, please --
- Answer or follow-up on this subject (in non-commercial
fashion).
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- My company is a supporting advertiser at
finishing.com and we want the contact information to reach
the inquirer privately.
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- Post a new
question or inquiry on a different subject.
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