Investigation on the effects of damping over the temperature distribution on internal turning bar using Infrared fusion thermal imager analysis via SmartView software

摘要

In the various machining process, instability of the tool occurs due to chatter vibration. In all metal cutting processes, vibration is induced due to the instability of the cutting tool. The instability problem of the metal cutting process induces undesirable tool vibration and declination in tool life due to augmented cutting temperature. This investigation mainly focuses on fabricated the double impact dampers in the boring tool holder and raise the tool life by reducing the tool temperature. The cutting tool temperature can be effectively decreased by providing impact dampers. The association between boring tool temperature and tool wear during machining was inferred by using Infrared (IR) fusion thermal imager by sensing the infrared rays from the hot surface of the machining tool (insert). The thermal images obtained during the cutting operation were analyzed using smartview3.4 software. It is an obvious fact that increases in tool temperature deteriorate the tool wear during machining. According to the result of the thermal images, it can be concluded the dampers employed is control the tool vibration and also decreased the tool temperature during machining thereby enhancing the tool life. The temperature was found the 170.2 degrees F and 117.6 degrees F for the tools without and with dampers respectively while machining at optimal cutting conditions. (Speed = 300 rpm, depth of cut = 0.25 mm and feed = 0.02 mm/rev). (C) 2020 Elsevier Ltd. All rights reserved.