Cole Hanson
Mechanical
- Aug 15, 2019
- 1
Hey all,
We have a shaft that gets a Type 3 class 2 hard ano with a nickel acetate seal. These shafts then get a grind/polish operation to bring them into diameter spec and surface finish spec (8-10 Ra micro in). I have a batch that has a tacky sensation on the surface, and is causing some noise in the assembly and I am correlating the noise to the tacky sensation. The question is if the grinding operation which removes up to 0.0003" per surface is removing enough material to get below the sealed layer, or if the seal was poor in the first place. Or, if there are any other causes for this type of tacky sensation that anyone is aware of.
Thanks!
We have a shaft that gets a Type 3 class 2 hard ano with a nickel acetate seal. These shafts then get a grind/polish operation to bring them into diameter spec and surface finish spec (8-10 Ra micro in). I have a batch that has a tacky sensation on the surface, and is causing some noise in the assembly and I am correlating the noise to the tacky sensation. The question is if the grinding operation which removes up to 0.0003" per surface is removing enough material to get below the sealed layer, or if the seal was poor in the first place. Or, if there are any other causes for this type of tacky sensation that anyone is aware of.
Thanks!