Tumbling Test for Plated Parts?
Tumbling Test for Plated Parts?
(OP)
I am trying to compared the durability of various grades of both Phosphate and Zinc plating. We (Engineers) were thinking that besides the ASTM B117 Salt Spray Test that we should do a test were the parts are tumbled and then evaluated for corrosion resistance because the bolt nut assym in question are often handled roughly.
Does such a tumbling test exist?
Thanks in advance.
Does such a tumbling test exist?
Thanks in advance.





RE: Tumbling Test for Plated Parts?
In our experience it is a go / nogo deal. If the plating stays on in testing then it will stay on in use.
Thomas J. Walz
Carbide Processors, Inc.
www.carbideprocessors.com
Good engineering starts with a Grainger Catalog.
RE: Tumbling Test for Plated Parts?
What aggregate did you use in the tumbler?
RE: Tumbling Test for Plated Parts?
On the other hand, there are standardized tests for other damage types, like scribing to the base metal, gravel chipping, etc.
RE: Tumbling Test for Plated Parts?
RE: Tumbling Test for Plated Parts?
ASTM D 1654 Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments
For gravel chipping:
SAE J400 Test for Chip Resistance of Surface Coatings
RE: Tumbling Test for Plated Parts?
RE: Tumbling Test for Plated Parts?
The Zinc coating seems to be tougher than the Phosphate coating. We are now performing the ASTM B117 Salt Spray test.