PRECISION GRINDING: INVESTIGATE BURN, CHATTER, AND FINISH
Yenra | Updated September 11, 2026
Article: https://yenra.com/grinding/

Purpose: structure an investigation of an established grinding process.
Use with trained operators and the approved machine, wheel and process instructions. Keep trial settings inside the approved envelope. Never exceed the wheel's marked maximum operating speed; this worksheet supplies no speed or feed settings.

BASELINE AND SYMPTOM
Part / drawing revision / material lot / process owner / operator:
Symptom type, location and direction / photographs / first occurrence:
Exact wheel designation / supplier recommendation / machine and guard compatibility:
Dresser type and condition / approved dressing settings / parts since dressing:
Coolant product / concentration method and correction / temperature / filtration:
Approved delivery arrangement / workholding / recent maintenance or changes:
Surface parameter and units / measurement direction / cutoff/filter / evaluation length:
Dimensions / gauge checks / part temperature / required thermal-damage inspection:

FICTIONAL ROUGHNESS CHECK
Ra, micrometers, same inspection method:
Baseline 0.8, 0.9, 1.0 => mean 0.9 micrometers.
Pilot 0.6, 0.7, 0.8 => mean 0.7 micrometers.
Observed reduction of means 0.2 micrometers. Six values do not establish capability or prove a cause. Review dimensions, thermal-damage requirements, repeatability, cycle time and other changes.

CONTROLLED TRIAL (duplicate per trial)
Hypothesis / single change or planned factor combination:
Approval owner / supplier basis / process limits / stop criteria:
Material, wheel, dresser and measurement conditions held constant:
Part/time | size and units | roughness and method | thermal checks | cycle | observation:
Actual settings / unplanned changes / rejected results retained:
Supported conclusion / unresolved causes / unintended effects / next comparison:

RELEASE
Accepted process revision / wheel and dresser identity / coolant controls:
Inspection requirements / demonstrated conditions / reaction plan:
Evidence files / trained owner / reviewer / date:
Reassess after material, wheel, machine, recurring-scrap or drawing changes.

PRIMARY REFERENCES
wheel-specification guidance
https://www.nortonabrasives.com/en-us/resources/expertise/7-factors-used-determine-grinding-wheel-specification
surface-grinding guidance
https://www.nortonabrasives.com/en-us/resources/expertise/tips-improved-surface-grinding
roll-grinding coolant discussion
https://www.nortonabrasives.com/en-us/resources/expertise/critical-coolant-factors-roll-grinding
Norton's ANSI B7.1 safety overview
https://www.nortonabrasives.com/en-us/resources/expertise/ansi-b71-industry-standard-grinding-wheel-safety