Effect of thrust and torque exerted during drilling to optimize exit burr height and thickness by choosing variable drill bit geometry: A simplified theoretical model approach

Sreenivasulu, R.; Rao, C.; Ravindra, K.

Growing Science » International Journal of Data and Network Science » Effect of thrust and torque exerted during drilling to optimize exit burr height and thickness by choosing variable drill bit geometry: A simplified theoretical model approach

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International Journal of Data and Network Science

ISSN 2561-8156 (Online) - ISSN 2561-8148 (Print) Quarterly Publication Volume 4 Issue 1 pp. 43-56 , 2020

Effect of thrust and torque exerted during drilling to optimize exit burr height and thickness by choosing variable drill bit geometry: A simplified theoretical model approach Pages 43-56 Download PDF

Authors: R. Sreenivasulu, Ch. Srinivasa Rao, K. Ravindra

DOI: 10.5267/j.ijdns.2019.8.003

Keywords: Drilling, Aluminium alloys, Burr formation, Thrust force, Torque, Analytical modelling

Abstract: In precision manufacturing, especially in making of holes on the parts during drilling process for precision assembling of parts facing problems with burr formation. Drilling is one of the finishing operations in the production cycle, removal of burrs during drilling process is a time consuming and non-value added process to the manufacturing sector. In this paper, we developed an analytical models for thrust force, torque and burr size with variable clearance angle of drill bit geometry especially for Aluminium alloys used for automotive applications. An analytical model results were obtained by writing a code in MATLAB @ 2010 software for aluminium alloy series such as Al 6061, Al 2014 and Al 7075. In an economic front, de-veloped mathematical models are benefitted to reduce experimentation, these results reveal that at the beginning of the drilled hole due to indentation of chisel edge, more thrust and torque was identified, beyond that suddenly thrust force was lowered, cutting forces by the lip edges were increased from beginning of the process to progress of drilling process. The proposed model approach is helpful to the budding entrepreneurs in the related areas to select optimal combination of drilling parameters to attain multiple performance characteristics of responses especially in burr size to prevent the post finishing operations up to certain extent.

How to cite this paper

 Sreenivasulu, R., Rao, C & Ravindra, K. (2020). Effect of thrust and torque exerted during drilling to optimize exit burr height and thickness by choosing variable drill bit geometry: A simplified theoretical model approach.International Journal of Data and Network Science, 4(1), 43-56.

Refrences

Armarego, E. J. A. (1996). Material Removal Processes: Twist Drills and Drilling Operations. University of Melbourne, Department of Mechanical and Manufacturing Engineering, Manufacturing Science Group.
Armarego, E. J. A., & Cheng, C. Y. (1972). Drilling wih flat rake face and conventional twist drills—II. Exper-imental investigation. International Journal of Machine Tool Design and Research, 12(1), 37-54.
Armarego, E. J. A., & Cheng, C. Y. (1972). Drilling with flat rake face and conventional twist drills—I. theo-retical investigation. International Journal of Machine Tool Design and Research, 12(1), 17-35.
Aurich, J. C., Dornfeld, D., Arrazola, P. J., Franke, V., Leitz, L., & Min, S. (2009). Burrs—Analysis, control and removal. CIRP annals, 58(2), 519-542.
Chandrasekharan, V., Kapoor, S. G., & DeVor, R. E. (1995). A mechanistic approach to predicting the cutting forces in drilling: with application to fiber-reinforced composite materials. Journal of Engineering for Indus-try, 117(4), 559-570.
Chandrasekharan, V., Kapoor, S. G., & DeVor, R. E. (1998). A mechanistic model to predict the cutting force system for arbitrary drill point geometry. Journal of Manufacturing Science and Engineering, 120(3), 563-570.
Chen, W. C., Fuh, K. H., Wu, C. F., & Chang, B. R. (1996). Design optimization of a split-point drill by force analysis. Journal of Materials Processing Technology, 58(2-3), 314-322.
Elhachimi, M., Torbaty, S., & Joyot, P. (1999). Mechanical modelling of high speed drilling. 1: predicting torque and thrust. International Journal of Machine Tools and Manufacture, 39(4), 553-568.
Gong, Y., & Ehmann, K. (2001). Mechanistic model for dynamic forces in micro-drilling. 19-28. Paper pre-sented at 2001 ASME International Mechanical Engineering Congress and Exposition, New York, NY, United States.
Gong, Y., Lin, C., & Ehmann, K. F. (2005). Dynamics of initial penetration in drilling: Part 2—motion models for drill skidding and wandering with experimental verification. Journal of manufacturing science and engi-neering, 127(2), 289-297.
Hirsch, J. (2011). Aluminium in innovative light-weight car design. Materials Transactions, 52(5), 818-824..
Kachanov, L. M. (2004). Fundamentals of the Theory of Plasticity. Courier Corporation.
Kapoor, S. G., DeVor, R. E., Zhu, R., Gajjela, R., Parakkal, G., & Smithey, D. (1998). Development of mech-anistic models for the prediction of machining performance: model building methodology. Machining Sci-ence and Technology, 2(2), 213-238.
Miyake, T., Yamamoto, A., Kitajima, K., Tanaka, Y., & Takazawa, K. (1991). Study on mechanism of burr formation in drilling: deformation of material during burr formation. Journal of Japan Society Precision En-gineering, 57(3), 485-490.
Oxford Jr, C. J. (1955). On the drilling of metals 1: basic mechanics of the process. Trans. ASME, 77(2), 103-111.
Sofronas, A. (1976). Effect of System Stiffness, Workpiece Hardness and Spindle Speed on Drilling Burr Thicknesses. SME Tech. Paper.
Stephenson, D. A., & Agapiou, J. S. (1992). Calculation of main cutting edge forces and torque for drills with arbitrary point geometries. International Journal of Machine Tools and Manufacture, 32(4), 521-538.
Strenkowski, J. S., Hsieh, C. C., & Shih, A. J. (2004). An analytical finite element technique for predicting thrust force and torque in drilling. International Journal of Machine Tools and Manufacture, 44(12-13), 1413-1421.
Williams, R. A. (1974). A study of the drilling process. Journal of Engineering for Industry, 96(4), 1207-1215.