A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Hariharan, P.
- Wet Sliding Wear Optimization of Gray Cast Iron using Taguchi Technique
Authors
1 Dept. of Industrial Engg., Jawahar Engineering College, Chennai, IN
2 Dept. of Mech. Engg., Vel Tech Dr.RR & Dr.SR Technical University, Chennai, IN
3 Dept. of Manufacturing Engg., Anna University, Chennai, IN
4 Dept. of Manufacturing Engg., CSI College of Engineering, Ketti, Nilgiris, IN
Source
International Journal of Vehicle Structures and Systems, Vol 7, No 4 (2015), Pagination: 154-156Abstract
This paper details the investigation of wear characteristics of gray cast iron under dry, SAE15W40 and SAE20W40 oil lubricated sliding conditions. The effects of applied load, sliding speed and sliding distance on the specific wear rate of gray cast iron were studied using pin-on-disc wear testing machine. The experimental data were analyzed by using the robust technique of Taguchi’s orthogonal arrays. The specific wear rate was analyzed using signal to noise ratio and analysis of variance.Keywords
Gray Cast Iron, Specific Wear Rate, Taguchi Technique, Signal to Noise Ratio, Analysis of Variance.- Automation in CNC Code Generation and Tool Path Optimization for Micro-milling Machine
Authors
Source
International Journal of Innovative Research and Development, Vol 3, No 5 (2014), Pagination:Abstract
Recent scenario and technology moving rapidly towards the development of micro- devices in the millimeter to sub-millimeter range. Micro manufacturing plays an important role in recent development and application of miniaturized products. One of the tool based micro manufacturing process known as microendmilling has become an established process for manufacturing micro components in metal and metal alloys. For the complicated contouring applications, manual part programming becomes cumbersome and is prone to errors. In this work an attempt has been made to overcome these problems by use of specially designed software. This software automatically generates CNC part programs, when the part geometry is defined. It reduces the time consumed by the operator to enter the program manually and also eliminate the programming errors. This software automate the computer numerical control (CNC) programming for micro-endmilling machine to perform point to point operation, straight cut operation and contouring operation. The development of this technique leads to reduce the cost of fabrication for the most of the microstructures and at the same time reduces the product time to market. Optimized tool path for pocket milling operation are also identified as parallel plane method based on surface roughness and machining time.
Keywords
Computer Numerical Control (CNC), Micro-endmilling, Part Programme, Tool Path, Surface Roughness- Circularity Analysis in Micro Electrical Discharge Machining of EN-24 Die Steel
Authors
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
Authors
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
Authors
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