X-Ray / Scanning systems - Material - Celcon M90, 2-3mm thick

  • Thread starter Bob Gallinger - 2007
  • Start date
B

Bob Gallinger - 2007

#1
Problem - Need a NonDestructive test to analyze a plastic part for cracks and voids. We've recently had a concern from our customer about some of our gears failing strength test. Visually the parts look great but must of had cracking or voids (air pockets) on the inside of the part. I can cut a part into sections and look for discontinuities in the plastic but obviously the part is nolonger good.
Question - Are there types of machines that can scan over a part and look for a problem within the material?
Material - Celcon M90, 2-3mm thick.
Any replys with a manufacture of such equipment would be appreciated.
 
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Hershal

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#2
Will an untrasonic NDT test work? I know it works for metals, but not sure for plastic.

Hershal
 
K

Kevin H

#3
Hi Bob, I can second Hershal's thoughts regarding ultrasonic. My other thought for standard testing that would apply to metals would be x-ray. One thought regarding the voids - are they large enough to cause a detectable weight discrepancy? If so an easy, inexpensive test would be an accurate scale to weigh the parts. In metals, cracks can often be detected with dye penetrant tests, if they reach the surface of the part. Dye penetrant should work on plastic as well. The only issue is that as I've seen it used, it's not a highly automated/high volume test.

Good luck, Kevin
 
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