A study on the usage of current signature for tool condition monitoring of drill bit

In the modern days manufacturing industry is shifting towards automation wherever possible. Most of the manufacturing operations like metal cutting, turning, milling, drilling etc., are being automated. Tool condition monitoring (TCM) plays a major role in automation that ensures the efficient use of tools thus saving lot of money being lost otherwise. It also saves lot of time because we will know in advance as to when a tool is going to break. Signal acquisition is one of the main and primary steps of TCM. Among various signal acquisition techniques current signal monitoring is the most economical method. Despite of the advantages in using current sensors, very limited research happened to predict remaining useful life (RUL) of a drill bit during drilling operation. Hence this work focuses on experimentally investigating the practical problems involved in employing current sensors for RUL prediction of drill bit. Most probable solutions for the problems faced are suggested in this paper. The outcome of this research is that it is possible to use 'current sensors' for TCM of Drill bit. (c) 2020 Elsevier Ltd. Selection and peer-review under responsibility of the scientific committee of the International Conference on Advances in Materials and Manufacturing Applications.