Efficient cooling of the tool and workpiece interface has the key role in the high-performance titanium alloys machining (i.e. Ti6Al4V). Despite the several available conventional methods using for cooling, cryogenic cooling is in the center of the attention for the future machining process. This modern technology requires adequate research and development activities to become a reliable technology for the machining process, specifically because of its severe working conditions and complicated physical phenomena inside cryogenic fluids handling and application. The optimum design, the prediction of operational limits, and the safe control of the cooling process depend upon the availability of realistic and accurate mathematical models. For the analysis of the cooling process, different approaches can be used as experimental studies, numerical simulations, and a combination of both methods. In this research, computational fluid dynamics (CFD) analysis is used to have an estimation of the behavior of the cryogenic fluid inside the milling tool cooling channel and around cutting region. A variety of the simulations have been implemented, regard to the different assumptions about flow condition, introducing to the tool. Results of this study will be used for improving the design of the cryogenic cooling system and defining the proper working conditions and operational limits for a reliable process.

Recent Advances in Simulation of Flow in Cryogenic Cooling for Hard-to-Cut Materials

Ehsanallah Tahmasebi;Paolo Albertelli;Tommaso Lucchini;Michele Monno
2018-01-01

Abstract

Efficient cooling of the tool and workpiece interface has the key role in the high-performance titanium alloys machining (i.e. Ti6Al4V). Despite the several available conventional methods using for cooling, cryogenic cooling is in the center of the attention for the future machining process. This modern technology requires adequate research and development activities to become a reliable technology for the machining process, specifically because of its severe working conditions and complicated physical phenomena inside cryogenic fluids handling and application. The optimum design, the prediction of operational limits, and the safe control of the cooling process depend upon the availability of realistic and accurate mathematical models. For the analysis of the cooling process, different approaches can be used as experimental studies, numerical simulations, and a combination of both methods. In this research, computational fluid dynamics (CFD) analysis is used to have an estimation of the behavior of the cryogenic fluid inside the milling tool cooling channel and around cutting region. A variety of the simulations have been implemented, regard to the different assumptions about flow condition, introducing to the tool. Results of this study will be used for improving the design of the cryogenic cooling system and defining the proper working conditions and operational limits for a reliable process.
2018
Proceedings of the XIVth International Conference on High Speed Machining: Productivity, Quality and Digitalization
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1071734
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