Jump to content

surface roughness and form


---
 Share

Recommended Posts

I have some castings that had a blip when a cylinder was machined. The cylinder now has some small rings that are 0.04 mm proud of the surface.
Callouts are diameter 60 +/- 0.5 mm and Ra 3.2.
The rings are well within the diameter envelope, and that cylinder is assembled by clamping a rubber tube on it, so the bosses want to try to sell them.
When I try to measure the surface roughness I get either an error or around 2.2. The pin is traveling over the ring, so there is obviously some form/waviness filtration happening when I get an in-spec roughness.

I am not sure if the parts are technically bad or not. They are functional, and I cannot find what specification they are in violation of, but they are obviously not perfect or what was intended.
Please help.
Link to comment
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In
 Share

×
×
  • Create New...