Machinability Studies on High Strength Heat Resistance Ti6Al4V Titanium Alloy using Micro Textured and Coated HSS Drills
S. Ramesh Babu1, S. Ponnuvel2, M. Prem Ananth3, C. Madhankumar4, S.R. Harish Kumar5
1S. Ramesh Babu, Professor & Head, Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Pennalur, Sriperumbudur, Chennai (T.N), India.
2S. Ponnuvel, Associate Professor, Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Pennalur, Sriperumbudur, Chennai (T.N), India.
3M. Prem Ananth, Associate Professor, Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Pennalur, Sriperumbudur, Chennai (T.N), India.
4C. Madhankumar, UG student, Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Pennalur, Sriperumbudur, Chennai (T.N), India.
5S.R. Harish Kumar, UG student, Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Pennalur, Sriperumbudur, Chennai (T.N), India.
Manuscript received on 15 February 2019 | Revised Manuscript received on 06 March 2019 | Manuscript Published on 08 June 2019 | PP: 464-467 | Volume-7 Issue-5S4, February 2019 | Retrieval Number: E10970275S419/19©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 this research work the effect of micro textured HSS drills on Ti-6Al-4V Titanium alloy was investigated. Micro texturing of the drills is expected to improve the tool life due to reduced sliding friction. Hence micro textured flank surface (MTFS)-HSS drill was used to conduct drilling experiments along with plain HSS drill. Cylindricity of the drilled hole was chosen as the drilled hole quality characteristic and was analysed using Analysis of Variance technique. Studies showed that the cutting speed emerged as the most significant factor. Significant variation between the plain HSS drill and MTFS drill was not observed. This promising observation shows that flank surface of the drill can be micro textured without significantly affecting cylindricity of the drilled hole. Form the observed optimal cutting conditions, holes were drilled with MTFS-HSS drill coated with AlTiN based coating material. The results showed improved drilled hole quality in terms of cylindricity values in comparison with plain HSS drill. This suggests that MTFS-HSS drill with AlTiN based coating material can be used as a promising economical alternative for drilling high strength heat resistance Titanium alloys.
Keywords: Titanium Alloy; Micro Texturing; Flank Wear; TiAlN Coating; ANOVA.
Scope of the Article: Heat Transfer