FAG workpiece cutting temperature and its measuring method

( 1) The concept of cutting temperature in FAG import bearing production, heat cutting on cutting process is through the influence of cutting temperature is manifested. Cutting temperature is the temperature of cutting zone in the process of cutting. ( 2) The determination of cutting temperature determination of cutting temperature and cutting temperature in the chip a FAG import bearing the workpiece cutting tool by the theoretical calculation of the heat transfer and temperature field distribution, the commonly used by the experimental method for determining. Cutting temperature measurement method are many, such as natural thermocouple method, artificial thermocouple method, thermal coating, thermal radiation and far infrared method, etc. Production practice, the most convenient, the simplest and most commonly used natural thermocouple method is adopted. Using natural thermocouple method on a lathe cutting temperature measuring device as shown in figure 1, 21. The working principle is: the use of natural thermocouple method FAG imported bearing the workpiece and cutting tool materials of different chemical composition and the poles thermocouple. FAG import bearing the workpiece and cutter contact area because of the action of heat cutting make the hot end temperature rise, and the end of the cutting tool and workpiece terminal to keep at room temperature to form a thermocouple cold end. In the circuit of tool and workpiece in thermoelectric emfs. The electromotive force with millivoltmeter or potentiometer recorded. According to the calibration of cutting tools in advance a workpiece thermocouple calibration curve, can be measured cutting tool with imported FAG bearing the workpiece contact surface temperature of the average.