Investigation of the Wear Behaviour of Electrostatically coated CrN Nano-Composite and Compared with Uncoated Dry and MQSL Environmental Conditions

In the machining industries, one of the most significant and often employed methods for removing material is machining. In the absenteeism of cutting lubricant, the cutting temperatures and forces applied to a cutting tool during machining significantly shorten its life and have an impact on the quality of the finished product. A substitute for changing the tribological properties is the use of nano-composite coatings to counteract these effects, wear resistance, thermal barrier, and pollution- free environment. The aim of this work is to create an efficient methodology for the development of wear-resistant coated cutting tool. In the present work, an attempt has been made to coat nanoparticles on pin material using electrostatic coating technique. Tribological characteristics of CrN coated pin were evaluated on pin-on-disc tribometer under constant load and varying speed conditions. Ti–6Al–4 V allot material was used as disc material. The studies are compared with the uncoated pin material (dry condition), and minimum quantity solid lubricant technique used graphite as lubricant for uncoated pin material. The studies revealed that CrN coated material significantly improves the tribological properties compared to dry and lubricated environment conditions. This is due to the amalgamation of micro-mechanical properties of CrN coatings on the surface layer improves wear properties. As a result, industrial facilities are preserved, which has a significant impact on the sector's economic development.