Multi Response Optimization of Process Parameters in Drilling Operation for Jute and Basalt Fabric Composite Material
M. Indira Rani1, Ajmeera Ramesh2, K. Ramu3, N.V. Srinivasulu4

1Dr. M. Indira Rani*, Department of Mechanical Engineering, JNTUH College of Engineering, Hyderabad, India.
2Ajmeera Ramesh, Department of Mechanical Engineering, CMR Technical Campus, JNTUH College of Engineering Hyderabad, India.
3K. Ramu, Department of Mechanical Engineering, Vignana Bharathi Institute of Technology, Hyderabad, India.
4Dr. N.V. Srinivasulu, Department of Mechanical Engineering, Chaitanya Bharathi institute of Technology, Hyderabad, India
Manuscript received on September 21, 2019. | Revised Manuscript received on October 05, 2019. | Manuscript published on October 30, 2019. | PP: 389-394 | Volume-9 Issue-1, October 2019 | Retrieval Number: A9380109119/2019©BEIESP | DOI: 10.35940/ijeat.A9380.109119
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Abstract: Natural fabric Reinforced polymer (NFRP) composites are the materials by a matrix and a reinforcement of natural fibre. NFRPs are the materials with low density, high molding flexibility, environmentally friendly and have wide range of applications extending from products of commodity to aerospace, defence, automobile spare parts, and bicycle frames applications. In this work the effect of cutting parameters in drilling Natural fabric reinforced composites were studied. Experiments were conducted to study the effect of drill bit diameter, spindle speed and feed rate on Material Removal Rate (MRR), Surface Roughness, Circularity of Hole and Delamination Factor. Theoretical calculations are done to calculate Material Removal Rate and Delamination Factor. Surface Roughness and Circularity of Hole measured by Surface Roughness Tester and Coordinate Measuring Machine (CMM) respectively. The input parameters considered were 6mm, 8mm and 10mm diameter drill bits, spindle speeds of 600rpm, 1200rpm & 1800rpm, feed rates of 0.1rev/min, 0.2rev/min and 0.3rev/min. Experiments were carried as per Taguchi Experimental Design (L9 ) to get the optimum values of MRR, Surface Roughness, And Circularity Of Hole and Delamination Factor. Optimization was done using Taguchi Analysis, Grey Taguchi Analysis and Multi Attribute Decision Making (MADM) Method. The optimal solution for the multiple response system of drilling of NFRP were diameter of drill bit of 10 mm, Spindle speed 600 rpm and at 0.3 mm/rev feed rate. MADM process concluded that, Circularity of Hole was most preferred response than followed by Material Removal Rate, Surface Roughness and Delamination Factor.
Keywords: Circularity, Coordinate Measuring Machine (CMM), Delamination Factor, Grey relation analysis, Natural Fabric Reinforced Polymer (NFRP), Surface roughness.