Optimization of Process Parameters for Residual Stress in Hard Turning of EN 31 using Taguchi OA
Pankaj Bhokare1, V. Ramana2
1Pankaj Bhokare, Ph.D., Scholar. K.L. University, Vaddeswaram. Pune, India
2V. Ramana, Professor, K.L. University, Vaddeswaram. Pune, India
Manuscript received on 21 April 2019 | Revised Manuscript received on 27 May 2019 | Manuscript published on 30 May 2019 | PP: 2597-2600 | Volume-8 Issue-1, May 2019 | Retrieval Number: A3410058119/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In machining, though the cutting forces are released from the workpiece, still the stresses are induced in the body these stresses are called residual stresses. These stresses are independent of external loads. Residual stresses are equilibrium in nature. In the present research, the experiments have been carried out on the hardened Steel EN 31 using a fresh ceramet insert. The workpiece material was hardened to 60 HRC. The machining parameters considered for the optimisation are Speed, Nose radius, Feed and Depth of cut. Design of experiments is based on a Taguchi approach. Here L16 orthogonal array used to conduct the experiments. Process parameters varied over a viable space. X ray diffractometer is used to measure the residual stress. XRD is NDT for residual stress testing. NOVA performed to recognize the significance of the parameter.
Index Terms: Residual Stress, EN 31, X-Ray Diffraction, ANOVA, Orthogonal Array.
Scope of the Article: Discrete Optimization