0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 175 / 231
19.22.2 Grinding Zones
There are 5 grinding zones (G1 to G5) available for you to setup as needed to grind the workpiece
down to the final or finish diameter. Un-used zones should be left blank.
Guideline to using the zones:
For heavy stock removal from the workpiece
For medium stock removal
from the workpiece
For fine grinding to achieve final size
For eliminating any possible wheel deflection. The
grinding wheel will take n-passes across the finish
ground workpiece at the final size on diameter.
No dressing is performed in this
zone. Also the grinding increment is
always set to 0.
Sparkout G5
The sparkout zone G5 is used to ensure that final size on diameter has been achieved after finish
grinding has completed.
When the sparkout zone G5 is enabled then the grinding wheel will take n-passes across the finish
ground workpiece at the final size diameter achieved in G4 to clean-up any small amount of material
(if any) still remaining the workpiece.
Sometimes, sparkout passes are used to eliminate possible wheel deflection that may have occurred
during grinding.
Note: Dressing cycles are not permitted during sparkout passes.
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