1)These parts have been manufacturing with ageing (minimum aging time 1day) to avoid the bow in the part.
2)Flatness around the groove should be 0.010mm and this achieving with buffing.
3)These parts are inspected two times which is prior to buffing and after buffing. Mean time groove depth is also checked.
4)Here noticed our self the depth undersize and moved to rework. After that he missed to re-ensure the part, weather the depth is achieved OR not.
