Investigation of tool-chip interface temperature in dry turning assisted by heat pipe cooling

State of art of cooling method for dry machining

“…Liang [12] describes that the usage of heat pipe as a cooling system to reduce the thermal elongation of tool holder which reduces the tool wear. Heat pipe is attached to the tip of the cutting tool.…”

“…This cooling does not require any external flow medium or power source. [12] Heat transfer efficiency of the cooling system can be increased by considering the lengths, diameters, vacuums and materials of the heat pipe [12]. Figure 5 shows the placement of the heat pipe at the cutting tool.…”

“…Heat pipe: Height: 4mm Length: 150mm Thickness: 0.65mm [12] x No external power supply [12] x Reduces the thermal elongation of tool holder [12] x Zero usage of cooling medium [12] x Low heat transfer effectiveness [7] x Groove need to be made at the cutting tool, which will reduce the mechanical strength.…”

“…Some of the cooling method for dry machining are internally cooled, indirect cooling, solid lubricant and heat pipe technology [2,4,6,[10][11][12]. For time being, internal cooling system is the most promising cooling system to improve dry machining's performance [1,13].…”

“…Indirect cooling which uses cryogen is effective but very costly [6]. Heat removal by using heat pipe is more attractive as no external flow source and external power supply is used in the cooling system [12]. This paper is about the cooling method and introduces novel features to improve existing dry machining performance.…”