ชุดวัดอุณหภูมิจุดตัดเฉือน

Abstract

Machining is the most commonly used process in manufacturing. The mechanism that widely involved One important mechanism is Occurrence of temperature during machining Tracking the level of heat generated during machining is therefore a topic of concern for the authors.

This project aims to create a temperature measuring unit at the point of contact between the chip and the cutting knife surface. temperature level change When changing cutting conditions and correlation of temperature and voltage, thermocouple circuit of SPMN 120308 carbide cutter contact with AISI 1040 steel workpiece.

The results of the experiment showed that the voltage relationship of the thermocouple circuit Cutting knife – workpiece Yes The following increased characteristics are When the hot junction temperature of the thermocouple circuit increases, the value level The voltage drop across it is increased according to the equation T = 28.056e3 – 153.3e2 + 351.1e – 3.6562 when this circuit is installed to measure temperature while cutting can measure the temperature at the point of contact The sheave can be cut to the workpiece, the change in temperature is higher at higher cutting speeds. The same is true when the cutting depth is increased and the feed rate is increased. The heat level also increased.