Investigations on reducing burr formation in drilling |
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| Affiliation: | 1. Department of Mechanical Engineering, Indian Institute of Technology, Bombay, India;1. School of Mechanical Engineering, Yeungnam University, 214-1, Dae-dong, Gyeongsan-si, Gyeongsangbuk-do 712-749, South Korea;2. Hajee Mohammad Dannesh Science and Technology University Dinajpur, Bangladesh;1. School of Engineering, The University of Tokyo, Tokyo, Japan;2. BICTOOL Co., Ltd., Tottori, Japan;1. K. Ramakrishnan College of Technology, Tiruchirapalli, Tamil Nadu 621 105, India;2. Saranathan College of Engineering, Tiruchirapalli, Tamil Nadu 621 105, India;1. Department of Mechanical Engineering, Mahatma Gandhi Institute of Technology, Hyderabad, Telangana-500075, India;2. Department of Mechanical Engineering, Vignan Institute of Technology and Science, Hyderabad, Telangana- 508284, India;3. Department of EIE, VR Siddhartha Engineering College, Vijayawada, Andhra Pradesh – 5200007, India |
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| Abstract: | This paper reports the experimental investigations on reducing burr formation while drilling through-holes in metals. Experiments have been planned based on response surface methodology (RSM) technique. Mathematical models correlating response parameters (burr sizes) to the process parameters, e.g. feed, hole size and workpiece hardness have been obtained. Optimal process conditions to minimize the sizes of burr at the entry and exit of holes have been identified. In addition an attachment has been designed and developed to provide continuous modification of feed during drilling. It is reported that the optimal process conditions and the use of attachment can cause significant reductions in the sizes of burr. |
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