Cutting tools characteristics and coating depositions for hard part turning of AISI 4340 martensitic steel: A review study

Abstract

With the introduction of novel super cutting hard tool materials the innovative hard part turning process has cogently replaced by conventional grinding operations. Coatings have a deep-seated effect on cutting output characteristics. Coated tools can diminish considerably the coefficient of friction tends to minimisation of machining forces and surface machined roughness of the work even at more cutting paces. Evolution of the cutting practice has been convoyed by the continuous growth of cutting tool performance because of evolution of thin coatings that providing significant characteristics for every cutting setting. The layer on tool acts as imperative pillar in enhancing the wear resistance. Moreover, the cutting tool characteristics can be advanced during exploiting the coating layer Physical Vapour Deposition (PVD) or Chemical Vapour Deposition (CVD) of Titanium nitride (TiN), Titanium Carbonitride (TiCN), Titanium Aluminium Nitride (TiAlN), Aluminium Chromium Nitride (AlCrN) etc. This take stock summarizes the properties of PVD and CVD multilayer coating and further identification of research challenges from the perspective of cutting tool technology related with tribological phenomena. High strength low alloy steels (HSLA), for instance, AISI 4340 steel are extensively used in automotive, defence and aerospace scenario. In view of attaining better process efficiency, this report will map out the tool characteristics that can be practically fill the window for the researchers to accomplish further investigation on the machining performance of this alloy steel.