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Binoj, J. S.
- Application of Desirability Based Hybrid Anfis Model for Optimization of Electro Discharge Machining of Hastealloy C-276
Abstract Views :195 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, Sree Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, IN
1 Department of Mechanical Engineering, Sree Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, IN
Source
Manufacturing Technology Today, Vol 17, No 7 (2018), Pagination: 32-43Abstract
Hastealloy C-276 is a difficult to machine superalloy and comprehensively employed in various engineering fields such as nuclear applications, aerospace and gas turbines. Hastealloy C-276 having better strength and poor thermal conductivity makes them difficult to machine materials which results in reduced life of the cutting tool and poor machinability by conventional methods of material removal. Advanced metal removal methods have evolved to accomplish those kind of needs and appealed to be an opposite alternative approach to traditional machining. Electro Discharge Machining (EDM) is considered as one of the nontraditional metal removal process which is especially adopted for machining of hard to machine materials. In this present investigation Spark Erosion Machining has been employed for machining of Haste Alloy C-276 with copper electrode by using Taguchi’s experimental design approach. Applied current (A), pulse on time (TON) and pulse off time (TOFF) were considered as the input process variables and the performance of spark erosion machining has been assessed by considering the performance measures such as material removal rate, surface roughness, overcut, form and orientation tolerance errors. The significance of process variables were analyzed by Analysis of Variance (ANOVA). Multi objective optimization has been performed by desirability function analysis to obtain better machining performance. In addition DFA based Adaptive Neuro Fuzzy Inference System (ANFIS) have been evolved to optimize the desired performance characteristics.Keywords
EDM, Haste Alloy, Taguchi’s Design, Desirability Function Analysis, ANFIS.
References
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- Experimental Investigations on Wire Edm of AI-SiC Composite Using Taguchi’s Approach
Abstract Views :231 |
PDF Views:2
Authors
Affiliations
1 Department of Mechanical Engineering, Sree Vidyanikethan Engineering College Autonomous), Tirupati, Andhra Pradesh, IN
1 Department of Mechanical Engineering, Sree Vidyanikethan Engineering College Autonomous), Tirupati, Andhra Pradesh, IN
Source
Manufacturing Technology Today, Vol 17, No 9 (2018), Pagination: 12-20Abstract
The machinability study on Wire Electro Discharge Machining (WEDM) of Al6061/20%SiC has been investigated in the present exploration. The objective of this present investigation is to determine the best possible process parameter to obtain better machining performance during wire EDM of Al6061 matrix reinforced with 20 wt. % SiC which is fabricated through the stir casting processes. The machining parameters such as pulse on time, pulse off time (delay time) and servo voltage are deemed as input process variables. Rate of material removal and roughness of the machined surface were considered as performance measures under this investigation. Taguchi’s design of experiment approach has been adopted for designing the experimental runs and L9 orthogonal array has been selected for conducting the experiments. Analysis of Variance (ANOVA) is adopted for ascertaining the significance of process parameters. Taguchi’s response analysis has been employed to determine the ascendancy of process parameters and the optimum process parameters were determined to obtain better machining performance.Keywords
Al-SiC Composites, WEDM, Taguchi’s Approach, Orthogonal Array, ANOVA, Optimization.References
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