An Experimental Study of Dust Generation During Dry Drilling of Pre-Cooled and Pre-Heated Workpiece Materials |
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| Institution: | 1. Fugro GeoConsulting, Inc., Houston, TX, USA;1. GZS Campus College of Engg. & Tech., Bathinda, Punjab, 151001, India;2. Yadavindra College of Engineering, Punjabi University Guru Kashi Campus, Talwandi Sabo, Punjab, 151302, India;1. K. Ramakrishnan College of Technology, Tiruchirapalli, Tamil Nadu 621 105, India;2. Saranathan College of Engineering, Tiruchirapalli, Tamil Nadu 621 105, India;1. Düzce University, Cumayeri Vocational School of Higher Education, Düzce 81700, Turkey;2. Yıldırım Beyazıt University, Faculty of Engineering and Natural Sciences, Department of Mechanical Engineering, Ankara 06050, Turkey;3. Gazi University, Faculty of Technology, Department of Manufacturing Engineering, Ankara 06500, Turkey;4. Düzce University, Gümüşova Vocational School of Higher Education, Düzce 81850, Turkey |
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| Abstract: | The generation of fine dust during dry machining is a serious problem both for the environment and for workers. During machining, the fine dust particles generated remain suspended in the air for long periods, during they can be inhaled by workers. The quantity of dust generated is influenced by factors such as material type and heat treatment condition, temperature, and the associated chip formation mode. The aim of this work is to discover how these parameters influence dust generation during dry machining, which could lead to the control of dust production in the future. The materials tested are the wrought 6061 and foundry A356 aluminum alloys and 70-30 brass. It is found that pre-cooling a workpiece material leads to changes in chip formation, in the reduction of cutting forces, and hence in a reduction in fine dust generation by at least 70%, depending on the materials and cutting conditions used. Also, pre-heating the workpiece increases chip ductility and dust production levels. |
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