Manufacturing Technology Today

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Effect of Exit Edge Beveling on Drilling Burr Formation Under Wet Environment


Affiliations
1 Mechanical Engineering Department, Kalyani Govt. Engineering College, Kalyani, West Bengal, India
     

   Subscribe/Renew Journal


In drilling, burr formation is mostly observed at the exit edge of a workpiece. A burr can cause premature failure of cutting tools, dimensional errors in manufactured components and serious problems in assembly. Deburring operation is usually employed for removal of burr. For reduction of deburring cost and time, burr reduction is essentially needed. The present investigation on drilling burr formation demonstrates an approach for burr reduction at the exit edge of the workpiece. A number of experiments has been carried out on low carbon steel flats under water soluble oil cooled environment to explore the influence of different exit edge bevel angles on burr formation under different machining conditions. At 20o exit edge bevel angle, negligible burr is found at 0.2 mm/rev feed at all the cutting velocities considered and this condition may be adopted. However, with 25o exit edge bevel angle, sizeable burr is obtained making it unsuitable.

Keywords

Drilling, Exit Edge Beveling, Wet Environment, Machining, Burr, Backup Support.
User
Subscription Login to verify subscription
Notifications
Font Size

  • Altan, M & Altan, E: Investigation of burr formation and surface roughness in drilling engineering plastics, 'Journal of the Brazilian Society of Mechanical Sciences and Engineering', 36, 2014, 347–354.

  • Aurich, JC; Dornfeld, D; Arrazola, PJ; Franke, V; Leitz, L & Min, S: Burrs - analysis, control and removal, 'CIRP Annals - Manufacturing Technology', vol. 58, no. 2, 2009, 519-542.

  • Azarrang, S & Baseri, H Selection of dry drilling parameters for minimal burr size and desired drilling quality. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering. vol. 231, no. 3, 2017, 480-489. https://doi.org/10.1177/0954408915609872.

  • Beir, HM : Prediction model for burr formation.Handbuch Entagrattechnik, (62), Hanser, Munchen, 1999.

  • Chern, GL: Experimental observation and analysis of burr formation mechanisms in face milling of aluminum alloys, 'International Journal of Machine Tools and Manufacture', vol. 46, no. 12-13, 2006, 1517-1525.

  • Dornfeld, DA; Kim, J; Dechow, H; Hewson, J & Chern, L: Drilling burr formation in titanium alloy, Ti-6Al-4V, 'Annals of the CIRP', vol. 48, no. 1, 1999, 73-76.

  • Dornfeld, DA: Strategies for preventing and minimizing burr formation. An e-Scholarship Respiratory. University of California, 2003.

  • Gaitonde, VN & Karnik, SR: Minimizing burr size in drilling using artificial neural network (ANN)- particle swarm optimization (PSO) approach, 'Journal of Intelligent Manufacturing', vol. 23, 2012, 1783–1793.

  • Gillespie, LK & Blotter, PT: The formation and properties of machining burrs, 'Transactions of the ASME, Journal of Engineering for Industry', vol. 98, no. 1, 1976, 66-74.

  • Guo, Y & Dornfeld, DA: Finite element analysis of drilling burr minimization with back up material. In: Transactions of NAMRI/SMI, 26, 1998, 207-212.

  • Kamboj, A; Kumar, S & Singh, H: Burr height and hole diameter error minimization in drilling of Al6063/15%/SiC composites using HSS step drills, 'Journal of Mechanical Science and Technology', vol. 29, no. 7, 2015, 2837–2846.

  • Kaplan, Y; Nalbant, M & Gökkaya, H: The experimental investigation of the effect of machining parameters on burr formation in drilling of AISI D2 and AISI D3 cold work steels, 'Karaelmas Science and Engineering Journal', vol. 1, no. 1, 2011, 37-46. DOI: http://dx.doi.org/ 10.7212%2Fzkufbd.v1i1.11

  • Karmakar, A; Chakraborty, S; Mandal, U & Das, S: An experimental investigation on chemical deburring to remove drilling burr, 'Journal of the Association of Engineers, India', vol. 83, no. 2, 2013, 78-89.

  • Kim, J: Investigation on the geometric characteristics of drilling burr in stainless steel, LMA Research Reports. University of California, Berkeley, USA, 1999.

  • Kim, J; Min, S & Dornfeld, DA: Optimization and control of drilling burr formation of AISI 304L and AISI 4118 based on drilling burr control charts, 'International Journal of Machine Tools and Manufacture', vol. 41, 2001, 923-936.

  • Kim, YJ; Ko, SL; Kim, JH & Kim, BK: Development of intelligent system to minimize burr formation in face milling, 'International Journal of Machine Tools and Manufacture', vol. 29, 2006, 879-884.

  • Kundu, S; Das, S & Saha, PP: An investigation on developing a drilling burr prediction model, 'Reason - A Technical Journal', vol. 13, no. 1, (2014a), 107-117.

  • Kundu, S; Das, S & Saha, PP: Reduction of exit burr during drilling an aluminium alloy. In: 2nd International Conference on Advances in Mechanical Engineering and Its Interdisciplinary Areas, Kolaghat, West Bengal, India, (2015a), 311-317.

  • Kundu, S; Das, S & Saha, PP: Optimization of drilling parameters to minimize burr by providing back-up support on aluminium alloy. Procedia Engineering, vol. 97, 2014, 230-240.

  • Kundu, S; Das, S & Saha, PP: Effect of exit edge beveling on burr height in drilling aluminium alloy Proceedings of 6th International and 27th AIMTDR Conference, Pune, India, 2016, 1201-1205.

  • Lauderbaugh, LK: Analysis of the effects of process parameters on exit burrs in drilling using a combined simulation and experimental approach, 'Journal of Materials Processing Technology', vol. 209, no. 4, 2009, 1909-1919.

  • Leitz, L; Frank, V & Aurich, JC: Burr formation in drilling intersecting holes. In: CIRP International Conference on Burrs, University of Kaiserslautern, Germany, 2009, 99-106.

  • Lin, TR & Shyu, RF : Improvement of tool life and exit burr using variable feeds when drilling stainless steel with coated drills, 'International Journal of Advanced Manufacturing Technology', 14, 2005, 23-34.


Abstract Views: 299

PDF Views: 0




  • Effect of Exit Edge Beveling on Drilling Burr Formation Under Wet Environment

Abstract Views: 299  |  PDF Views: 0

Authors

Kapil Roy
Mechanical Engineering Department, Kalyani Govt. Engineering College, Kalyani, West Bengal, India
Partha Pratim Saha
Mechanical Engineering Department, Kalyani Govt. Engineering College, Kalyani, West Bengal, India
Santanu Das
Mechanical Engineering Department, Kalyani Govt. Engineering College, Kalyani, West Bengal, India

Abstract


In drilling, burr formation is mostly observed at the exit edge of a workpiece. A burr can cause premature failure of cutting tools, dimensional errors in manufactured components and serious problems in assembly. Deburring operation is usually employed for removal of burr. For reduction of deburring cost and time, burr reduction is essentially needed. The present investigation on drilling burr formation demonstrates an approach for burr reduction at the exit edge of the workpiece. A number of experiments has been carried out on low carbon steel flats under water soluble oil cooled environment to explore the influence of different exit edge bevel angles on burr formation under different machining conditions. At 20o exit edge bevel angle, negligible burr is found at 0.2 mm/rev feed at all the cutting velocities considered and this condition may be adopted. However, with 25o exit edge bevel angle, sizeable burr is obtained making it unsuitable.

Keywords


Drilling, Exit Edge Beveling, Wet Environment, Machining, Burr, Backup Support.

References