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Shanmugam, K.
- Mathematical Model for Predicting Thrust Force in Drilling of GFRP Composites by Multifaceted Drill
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Authors
Affiliations
1 Department of Manufacturing Engineering, Annamalai University, Chidambaram-608002, IN
2 Department of Mechanical Engineering, Sri Sai Ram Institute of Technology, Chennai-600 044, IN
1 Department of Manufacturing Engineering, Annamalai University, Chidambaram-608002, IN
2 Department of Mechanical Engineering, Sri Sai Ram Institute of Technology, Chennai-600 044, IN
Source
Indian Journal of Science and Technology, Vol 6, No 10 (2013), Pagination: 5316-5324Abstract
In this work an attempt has been made to develop empirical relationships to model thrust force in drilling of GFRP composites by Multifaceted drill bit. The empirical relationships were developed by response surface methodology incorporating above drilling parameters. The developed model can be effectively used to predict the thrust force in drilling of GFRP composites within the factors and their limits are studied.Keywords
Drilling, GFR-polyester Composites, Modelling, Thrust Force, OptimisationFull Text
References
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- Study on the Effect of Cryogenic Treatment of T1, T4 and M42 High-Speed Steels
Abstract Views :149 |
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Authors
K. Shanmugam
1,
S. D. Pathak
1
Affiliations
1 Department of Mechanical Engineering, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN
1 Department of Mechanical Engineering, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 41 (2016), Pagination:Abstract
Objectives: Deep cryogenic treatment is a one-time, permanent treatment affecting the entire part and not just the surface alone. Cryo treatment changes metals as a result of the martensitic transformation of retained austenite. Methods/ Statistical Analysis: Conventional Heat treatment and Cryo treatment are selected. The cryogenic fluid used here is nitrogen. An attempt is made to study the property changes mainly dwelling on the hardness of the high-speed steels before and after the Cryo treatment. Comparative studies made by modifying the quenching media oil, water and cryogenic media. Findings: The Cryo treatment using liquid nitrogen has shown the profound increase in the hardness of the tool steel materials. Moreover, by use of cryogenic treatment, multi-tempering could be avoided. From the optical microscopy studies, the actual component responsible hardness i.e. martensite is seen clearly in all the three samples but differs in the percentage of martensite content. Application/Improvements: Life of the cutting tools in the lathe, the milling and drilling will be enhanced.Keywords
Cryogenic Treatment, Hardness, High-Speed Steels, Tempering, Tool Steels.Full Text