State of the art of research studies on machining processes by French research network Manufacturing’21

For 20 years now, the French machining activities have been federated around the Manufacturing’21 group. The activities of this group cover all the issues related to mechanical manufacturing of machines, robots, tool path, and analysis of the cutting process.. This review article is interested in this last part: the analysis of the cutting process. The article tries to make a review of the machining activities made during the past years by focusing on several points. The first one is the behaviour of materials by addressing the cutting process in the primary zone, the tribology in machining and the surface integrity. Secondly, this article reviews the work on tool wear analysis. This section begins with the work that explains wear phenomena. This is followed by work on tool wear, and finally by models. This article ends with a part in which the cutting assistance is discussed where the laser assistance, the high pressure and the cryogenic assistance are exposed.