Experimental Investigation of Temperature Distribution in the Chips, Workpiece and Cutting Tool During Machining Operations

PDF

Published: 2023-09-08

DOI: 10.56557/japsi/2023/v15i28370

Page: 1-23


Uwabuike V. C. *

Mechanical Engineering, Federal University of Technology, Owerri, Nigeria.

Nwufo O. C.

Department of Mechanical Engineering, Federal University of Technology, P.M.B. 1526, Owerri, Nigeria.

Azubuike J. O.

Department of Mechanical Engineering, Federal University of Technology, P.M.B. 1526, Owerri, Nigeria.

Nwaji G. N.

Department of Mechanical Engineering, Federal University of Technology, P.M.B. 1526, Owerri, Nigeria.

*Author to whom correspondence should be addressed.


Abstract

High temperature values are encountered during machining processes and these high temperature values have negative influences on the tool, workpiece, chip formation mechanisms, the process efficiency and the quality of surface of the machined parts. These negative influences can be reduced drastically with the use of appropriate cutting tool with suitable depth of cut during machining operations. The studies of these thermal fields in machining are necessary and very important for the development of new technologies aiming to increase the tool lives and to reduce production costs. This work centers on measurement of temperatures in the chips, cutting tool and workpiece during turning and drilling operations using uncoated high-speed steel and coated cemented carbide cutting tools at different cutting speeds and depths of cut to ascertain the more suitable cutting tool and feed rate during machining operations. Although, the direct temperature measurement at the chip-tool interface are very complex, the turning experiments were performed on a lathe machine at varying turning speeds and depths of cut, while the drilling operation was performed on a drilling machine at different turning speeds and depths of cut. All the experiments were carried out at the mechanical Engineering workshop of Federal University of Technology, Owerri. The temperature values of chip, cutting tool and workpiece when working on brass, high-carbon steel and stainless steel were measured using digital thermocouples. The results obtained showed that uncoated high-speed steel cutting tool could not cut stainless steel and high-carbon steel at very high turning speed and depth of cut due to the excessive heat it generated at the contact area, and at very low cutting speed the temperature of the cutting tools were higher than the workpiece irrespective of the cutting tool till an increased cutting speed where temperature of workpiece became higher than the cutting tool. It is recommended that coated cemented carbide on hard materials be used during turning and drilling to ensure a negligible increase in temperature while machining, also monitor speed for required finishing and extended tool life.

Keywords: Turning operation, drilling operation, temperature, chip, tool, workpiece


How to Cite

V. C., U., O. C., N., J. O., A., & G. N. , N. (2023). Experimental Investigation of Temperature Distribution in the Chips, Workpiece and Cutting Tool During Machining Operations. Journal of Applied Physical Science International, 15(2), 1–23. https://doi.org/10.56557/japsi/2023/v15i28370

Downloads

Download data is not yet available.

References

Ogendegbe TS, Okediji A, Abideen YA, Aderoba O. The effects of heat generation on cutting tool and machined workpiece. Journal of Physics Conference Series; 2019.

Trent EM, Paul K, Wright. Metal Cutting”, 4th edition, Butterworth Heinemann, United Kingdom; 2000.

Santos RM, Silva ME, Machado AR, Silva BD, Guimaraes G, Calvalho S. Analyses of effects of cutting parameters on cutting edge temperature using inverse heat conduction technique; 2014.

Brito RF, Calvalho S, Ferreira J, Silva ME. Thermal analysis in coated cutting Tools; 2018.

Sana J, Yaseen. Theoretical Study of Temperature distribution and heat flux” Al Qadisiya Journal for Engineering Sciences. ISSN 19984456. 2012;5(3).

Mehul G, Sanket NB. Experimental study on temperature measurement in turning operation of hardened steel (en36)” procedia technology, 3rd international conference on innovations in automation and mechatronics engineering; 2016.

Alimoddin P, Dr. Rajendrakumar T. Experimental analysis and measurement of chip tool interface temperature in turning of aluminum alloy. IRJET; 2020.

Uzor Augustine C, Nwufo Olisaemenka C. Thermal aspect of machining: Evaluation of tool-chip temperature during machining processes using numerical method. International Journal of Engineering and Science. 2013;2(4).

Guangchao N, Zhengyan Y, Dong Z, Xiaoming Z, Jose O,Han D. Dynamics of chip formation during the cutting process using imaging techniques; 2021.

Shah A HA, Hussain S, Asari MS. “The effects of Machining Parameter on Temperature changes in milling process for S45C carbon steel”, AIP Conference Proceedings; 2018.

Jingjie Z, Xiangfei M, Jin D, Guangchun X, Zhaoqiang C, Mingdong Y, Chonghai X. Modelling and prediction of cutting temperature in the machining of H13 hard steel of transient heat conduction. Article licensed by MDPI; 2021.