Abrasive Flow Machining (AFM) is a finishing process that uses an abrasive-filled, viscoelastic polymer medium to remove material from components. It works by flowing the abrasive medium over the surface of a workpiece under pressure, eroding and polishing the surface while removing small amounts of material. AFM can be used to finish a wide range of materials, including metals, plastics, composites, and ceramics. It can also be used to deburr, polish, and improve the surface finish of components.