Wheel conditioning terminology in grinding What is the correct term for restoring a grinding wheel to its true geometry and correct shape after wear has altered it (i.e., correcting runout and profile)?

Introduction / Context:Grinding wheels gradually lose their intended geometry and surface condition due to loading, glazing, and uneven wear. Two distinct maintenance actions are used: dressing and truing.

Given Data / Assumptions:

• Abrasive wheel used in surface or cylindrical grinding.
• Wheel has developed runout or lost its original profile.
• Objective is to restore geometry and cutting effectiveness.

Concept / Approach:Truing: restores the wheel to concentric, correct form and runout-free condition; may also generate a desired profile.Dressing: conditions the wheel surface to expose sharp grains, remove loaded debris, and open the structure; it improves cutting action but does not necessarily correct geometry. Hence, when the shape is altered and must be corrected, truing is required.

Step-by-Step Solution:

Verification / Alternative check:Shop standards recommend truing first to correct form, followed by dressing passes to achieve sharp, open cutting action.

Why Other Options Are Wrong:Dressing: improves sharpness and chip space but not geometry by itself.Facing/Clearing: nonstandard or vague terms in this context.Profiling only: a subset of truing; truing encompasses restoring overall geometry.

Common Pitfalls:Attempting to dress a badly out-of-true wheel wastes time and can damage the work. Always true first, then dress.

Final Answer:

Truing