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Hariharan, P.
- Circularity Analysis in Micro Electrical Discharge Machining of EN-24 Die Steel
Abstract Views :189 |
PDF Views:0
Authors
A. Kadirvel
1,
P. Hariharan
2
Affiliations
1 RMK Engg College, Kavaraipettai, Thiruvallur (Dist), Tamil Nadu, IN
2 Dept of Manufacturing Engg, CEG, Chennai, IN
1 RMK Engg College, Kavaraipettai, Thiruvallur (Dist), Tamil Nadu, IN
2 Dept of Manufacturing Engg, CEG, Chennai, IN
Source
Manufacturing Technology Today, Vol 11, No 1-2 (2012), Pagination: 29-35Abstract
The demand for micro-products and components has been rapidly increasing in electronics, optics, medicine, biotechnology, automotive, communications and avionics industries. Introduction of micro electronics and related technologies brought quantum change in products and applications. The miniaturized products demand innovative manufacturing methods. Micro-EDM is one of the most powerful technologies which are capable of fabricating micro-structure. In this work, EN-24 die steel as workpiece, Cu and CuW as electrodes of 250 μm diameter are used to drill blind holes of 500 μm depth. The comparative analysis of circularity of holes machined by micro-EDM and Heat affected zone are presented.Keywords
Micro-EDM, MRR, Circularity, HAZ.- Evaluation of Delamination in Drilling of Nanoparticles Reinforced Epoxy Carbon Composite Laminates
Abstract Views :173 |
PDF Views:0
Authors
Affiliations
1 College of Engineering, Anna University, Chennai, IN
2 Ceramic Matrix Composites Division, ASL, DRDO, Hyderabad, IN
1 College of Engineering, Anna University, Chennai, IN
2 Ceramic Matrix Composites Division, ASL, DRDO, Hyderabad, IN
Source
Manufacturing Technology Today, Vol 10, No 11-12 (2011), Pagination: 29-34Abstract
In this paper, an attempt has been made to predict and minimize the delamination in drilling of Carbon Nano Tube (CNT) reinforced epoxy carbon fiber composite laminates with Solid Carbide tool. The experiments were conducted using L9 orthogonal array with feed and cutting speed as process parameters. From the analysis of variance, the optimal combination level and the significant parameters on delamination factor are obtained. The optimization results showed that the combination of low feed rate with high cutting speed is necessary to minimize delamination in drilling of CNT reinforced epoxy carbon fiber composite laminates. The second order models for predicting delamination factor both at entry and exit of the holes have been developed using response surface methodology.Keywords
Taguchi Method, CNT Reinforced Epoxy Carbon Fiber Composite, Delamination, Response Surface Method.- Optimization of Heat Treatment Parameters for Improved Wear Resistance and Impact Strength of SAE 51100 Bearing Steel Using Taguchi Techniques
Abstract Views :172 |
PDF Views:0
Authors
P. Hariharan
1,
R. P. Chandrasekar
1,
A. Suresh Babu
1,
A. Rajadurai
2,
D. Mohanlal
3,
S. Renganarayanan
3
Affiliations
1 Department of Manufacturing Engg., Anna University, Chennai-25, IN
2 Department of Production Technoiogy, MIT Campus, Anna University, Chennai-44, IN
3 Department of Mechanical Engineering, Anna University, Chennai-25, IN
1 Department of Manufacturing Engg., Anna University, Chennai-25, IN
2 Department of Production Technoiogy, MIT Campus, Anna University, Chennai-44, IN
3 Department of Mechanical Engineering, Anna University, Chennai-25, IN