The Trend of research and patents in Abrasive Flow Machining

Production technology for smooth surface roughness at the level required level; can be made into 5 main categories and sub-categories following: Mechanical Polishing, Mechanical + Electrical Polishing, Electrical Polishing, Electrical + Chemical Polishing, Chemical Polishing, Mechanical + Chemical Polishing, Light Polishing, and Thermal Polishing. This paper studies the trend of research and patents of AFM: Abrasive flow machining. Found that had developed and produced paper and patents many that 5 Journal, 18 papers in 4 countries. Patent found in the USA about 7 issues. This paper analyzes a patent mapping that found the Extrude Hone co., ltd. The USA holds 4 patents’ AFM.