ACTION 12

Wiping

Maintaining continuous contact across a surface to bring it to a target condition

Why It Matters

Surface treatment runs through both cleaning and pretreatment processes. Examples include removing contamination during room servicing, cleaning the exterior of returned goods, degreasing before painting, and removing cutting fluid after machining.

Dedicated washers and polishing equipment process objects of fixed shape along fixed paths. When the shape varies from item to item, contact pressure must be maintained throughout as curvature and friction change.

Skills 3

12-AContinuous Surface WipingTOOL

The path can be planned in advance, but even contact pressure must be maintained across the entire surface, and any section where contact breaks remains untreated.

Continuous Surface Wiping — Initial state
Initial stateA single wide surface is untreated, and a tool is held in hand.
Continuous Surface Wiping — Final state
Final stateThe entire surface is in the target condition, with no untreated areas.
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12-BCompound Surface WipingTOOL

The surface orientation changes from section to section, so the contact pose and pressure must be readjusted at every transition.

Compound Surface Wiping — Initial state
Initial stateA surface that changes direction is untreated, and a tool is held in hand.
Compound Surface Wiping — Final state
Final stateThe entire surface, including the bends, is in the target condition.
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12-CDeformable Surface Smoothing

The applied force changes the object's shape, so both the target state and the current state must be rechecked each time.

Deformable Surface Smoothing — Initial state
Initial stateUnevenness remains on a deformable surface.
Deformable Surface Smoothing — Final state
Final stateThe unevenness is removed, and the surface is smooth.
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