From what I have witnessed the marks are coming from all 3 processes but are being cleaned up in the next. I feel that I am getting Swarf stuck on the parts from the previous processes and its not being cleaned off by the coolant nozzles. The scratches are miniscule but unfortunately this is a...
I am having random issues with scratch marks on the pieces coming out of my centerless grinders. In particular 3 distinct parts are all having this issue across sealing surfaces. I feel like the issue may be pieces of the grinding wheel or some of the metal removed at the previous process is...