slipning

Slipning is an abrasive machining process used to remove material from a workpiece in order to create a smooth surface or achieve precise dimensions. Abrasive grains, bonded to a wheel or belt or carried in a slurry, act as cutting edges and remove material by micro-cutting and deformation. The process can be performed with the workpiece clamped in place or moving, using dry tools or with liquids coolant or lubricants to reduce heat and remove debris.

Common forms include grinding (using bonded abrasive wheels), belt grinding or sanding, honing, lapping, and polishing. Grinding typically produces larger material removal and is used for rough shaping or higher material-removal rates; lapping and polishing use softer abrasives and slurry to attain very flat, smooth surfaces with low roughness. Honing refines bore surfaces, improving roundness and finish.

Choice of abrasive media (grit size and material such as aluminum oxide, silicon carbide, ceramic, or diamond), bonding (vitrified, resin, metal), backing, tool geometry, wheel speed, feed rate, and depth of cut determine surface finish, tolerances, and potential heat effects. Insufficient cooling can lead to heat-related damage such as burns or altered hardness.

Common applications include metal fabrication, tool and die making, automotive components, optical and ceramic components, glass, and woodworking for sanding. Surface integrity, dimensional accuracy, and proper fixturing are important considerations, along with dust and noise control and adherence to safety guidelines.