THERMOCOUPLE AND INFRARED SENSOR-BASED MEASUREMENT OF TEMPERATURE IN METAL CUTTING

Abstract

The high temperature that occurs during metal cutting processing has a negative impact on the durability of the cutting tool and can also have a negative effect on the object of processing. Therefore, it is very important to have information about the temperature in the cutting zone and the workpiece. Accurate real-time temperature measurement is still a challenge. Efforts to accurately measure the cutting temperature today are directed in two directions. One direction refers to placing artificial thermocouples as close as possible to the cutting zone, and the other direction is the application of infrared thermography and thermovision. The paper presents the results of temperature measurement using an artificial thermocouple placed directly under the top of the cutting tool insert of the turning knife and using an IR non-contact thermometer to measure the temperature on the surface of the workpiece at different cutting speeds of two different materials.