Effect of high-pressure coolant supply when machining nickel-base, Inconel 718, alloy with coated carbide tools

2004 ◽  
Vol 153-154 ◽  
pp. 1045-1050 ◽  
Author(s):  
E.O. Ezugwu ◽  
J. Bonney
Keyword(s):  
High Pressure ◽  
Inconel 718 ◽  
Inconel 718 Alloy ◽  
Nickel Base ◽  
Coated Carbide ◽  
High Pressure Coolant ◽  
Coated Carbide Tools

scholarly journals Thermal Modeling of Tool Temperature Distribution during High Pressure Coolant Assisted Turning of Inconel 718

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 408 ◽  
Author(s):  
Doriana D'Addona ◽  
Sunil Raykar
Keyword(s):  
High Pressure ◽  
Temperature Distribution ◽  
Inconel 718 ◽  
Tool Temperature ◽  
Machining Processes ◽  
Nickel Chromium ◽  
Work Material ◽  
Cutting Zone ◽  
Overall Performance ◽  
High Pressure Coolant

This paper presents a finite-element modeling (FEM) of tool temperature distribution during high pressure coolant assisted turning of Inconel 718, which belongs to the heat resistance superalloys of the Nickel-Chromium family. Machining trials were conducted under four machining conditions: dry, conventional wet machining, high pressure coolant at 50 bar, and high pressure coolant at 80 bar. Temperature during machining plays a very important role in the overall performance of machining processes. Since in the current investigation a high pressure coolant jet was supplied in the cutting zone between tool and work material, it was a very difficult task to measure the tool temperature correctly. Thus, FEM was used as a modeling tool to predict tool temperature. The results of the modeling showed that the temperature was considerably influenced by coolant pressure: the high pressure jet was able to penetrate into the interface between tool and work material, thus providing both an efficient cooling and effective lubricating action.

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