Machining quality when lathing blanks with ceramic cutting tools
Department of mechanical engineering National Mineral Resource University, Vasilevsky island, 21 Line, House 2, 199106 St-Petersburg, Russia; *Correspondent: firstname.lastname@example.org
The article deals with the problems of improving quality of parts machined on lathe type machine tools. Improvements are suggested by predicting the operability (tool life parameter) of cutting tools equipped with replaceable ceramic inserts. It is proposed to forecast the operability of ceramic tools on the ground of relation between operational characteristics of the ceramic and microstructural parameters of the ceramic material. Microstructural parameters of ceramic inserts are determined by non-destructive testing method, evaluating them by estimating the specific electric resistance of the material. As a result of research, a relation has been detected between operability of the inserts and the specific electric resistance of the insert material. Obtained results permit one to determine the stability range borders for lathing blanks with tools equipped by ceramic cutting inserts and to predict flawless work.