Processes / techniques

Process variations for superfinishing	Characteristics	Application examples

External plunge-cut machining	Usable with a stone or tape Excellent flexibility with regard to workpiece clamping Possible to realise very high performance tool concepts	Crankshaft, cam unit, valve stems
External through-feed finishing	Very short cycle time possible (continuous casting machining) Cylindrical or defined logarithmic profiles representable Mainly stone machining	Roller bearings, piston rods
Flat finishing	Counter-rotating spindle and workpiece High metal removal rate possible Very high flatness and parallelism achievable	Planet wheels
Machining of running surfaces (short-stroke screw honing)	Linear oscillation or rotary pendulating tool unit Internal and external ring machining Available for conventional and large-size bearings	Ball bearing internal ring and ball bearing external ring
Sphero-finishing	Counter-rotating spindle and workpiece High metal removal rate possible Very high roundness correction	Ball pins, hip replacements
Surface finishing	(see honing)	Cylinder block

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