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Free Abrasive Lapping

Abrasive treatment where an abrasive paste is rubbed onto the surface using a rotating lapping tools.

Illustration of Free Abrasive Lapping

The process

A very fine oil-based abrasive paste containing dissolved abrasive particles is placed on the surface to be machined after which a rotating lapping tool is pressed against and puts the slurry in motion against the workpiece surface. The abrasive particles remove material and grinds the workpiece surface. Abrasive tools active surface is often made of a softer metal such as copper. The design of the tool surface is adapted to the shape of the surface to be ground and thus may have many different configurations.