The various new and competing technologies, each requiring somewhat different process conditions, require careful consideration of the end users’ true needs especially when considering capital
equipment expenditures. This can be readily understood by considering as an example the recent changes in the processing of nickel alloy-based aeroengine components, for example, high temperature blades and vanes.
The choices before a process planner setting up a new production line include the following.
188.8.131.52.1 Oil or Water for Coolant
As discussed above oil allows justification of plated CBN and is compatible with TG-based ceramic abrasives. Water-based coolants justify vitrified CBN or CDCF with alox wheels and may permit TG-based abrasives in heavy stock applications.