Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of different reinforcements in wire electric discharge machining of various geometrical profiles in metal matrix composites
https://orcid.org/http://orcid.org/0000-0002-6037-7972
In this study three different geometrical profiles with same perimeter were fabricated in aluminum metal matrix composite (AMMCs) using wire electric discharge machining (WEDM). AMMCs containing Al6061 as matrix and 10% alumina (Al2O3), 10% silicon carbide (SiC) and mixture of 5% Al2O3 and 5% SiC as reinforcements were fabricated by stir casting method. The basic objective of this study is to develop response surface methodology (RSM) based second order regression model to analyze the effect of various input parameters on cutting velocity (CV) and surface roughness (SR) during WEDM of triangular, circular, and square profiles of same perimeter. Effect of pulse-on time (Ton = 30–50 µs), pulse-off time (Toff = 6–12 µs), current (I = 1–5 A) and geometrical profiles on CV and SR have been investigated using response surface plots. Parametric analysis reveals that increase of current from 1 to 5 A at Ton = 40 µs, Toff = 12 µs increases the CV by 115% in all the three composites. Similarly, increase of Toff from 6 to 12 µs at Ton = 40 µs and I = 1 A reduces the SR by more than 35% in all composites. Multiobjective optimization using composite desirability (CD) approach shows that optimal results are obtained for triangular profiles and at optimal input parameters SR reduces by 21%, 24.19% and 33.39% respectively for alumina, silicon carbide and hybrid composite. Energy dispersive spectroscopy (EDS) analysis and SEM analysis were carried out to investigate the variation in elemental composition and surface morphology of machined surfaces respectively.
Effect of different reinforcements in wire electric discharge machining of various geometrical profiles in metal matrix composites
https://orcid.org/http://orcid.org/0000-0002-6037-7972
In this study three different geometrical profiles with same perimeter were fabricated in aluminum metal matrix composite (AMMCs) using wire electric discharge machining (WEDM). AMMCs containing Al6061 as matrix and 10% alumina (Al2O3), 10% silicon carbide (SiC) and mixture of 5% Al2O3 and 5% SiC as reinforcements were fabricated by stir casting method. The basic objective of this study is to develop response surface methodology (RSM) based second order regression model to analyze the effect of various input parameters on cutting velocity (CV) and surface roughness (SR) during WEDM of triangular, circular, and square profiles of same perimeter. Effect of pulse-on time (Ton = 30–50 µs), pulse-off time (Toff = 6–12 µs), current (I = 1–5 A) and geometrical profiles on CV and SR have been investigated using response surface plots. Parametric analysis reveals that increase of current from 1 to 5 A at Ton = 40 µs, Toff = 12 µs increases the CV by 115% in all the three composites. Similarly, increase of Toff from 6 to 12 µs at Ton = 40 µs and I = 1 A reduces the SR by more than 35% in all composites. Multiobjective optimization using composite desirability (CD) approach shows that optimal results are obtained for triangular profiles and at optimal input parameters SR reduces by 21%, 24.19% and 33.39% respectively for alumina, silicon carbide and hybrid composite. Energy dispersive spectroscopy (EDS) analysis and SEM analysis were carried out to investigate the variation in elemental composition and surface morphology of machined surfaces respectively.
Effect of different reinforcements in wire electric discharge machining of various geometrical profiles in metal matrix composites
https://orcid.org/http://orcid.org/0000-0002-6037-7972
In this study three different geometrical profiles with same perimeter were fabricated in aluminum metal matrix composite (AMMCs) using wire electric discharge machining (WEDM). AMMCs containing Al6061 as matrix and 10% alumina (Al2O3), 10% silicon carbide (SiC) and mixture of 5% Al2O3 and 5% SiC as reinforcements were fabricated by stir casting method. The basic objective of this study is to develop response surface methodology (RSM) based second order regression model to analyze the effect of various input parameters on cutting velocity (CV) and surface roughness (SR) during WEDM of triangular, circular, and square profiles of same perimeter. Effect of pulse-on time (Ton = 30–50 µs), pulse-off time (Toff = 6–12 µs), current (I = 1–5 A) and geometrical profiles on CV and SR have been investigated using response surface plots. Parametric analysis reveals that increase of current from 1 to 5 A at Ton = 40 µs, Toff = 12 µs increases the CV by 115% in all the three composites. Similarly, increase of Toff from 6 to 12 µs at Ton = 40 µs and I = 1 A reduces the SR by more than 35% in all composites. Multiobjective optimization using composite desirability (CD) approach shows that optimal results are obtained for triangular profiles and at optimal input parameters SR reduces by 21%, 24.19% and 33.39% respectively for alumina, silicon carbide and hybrid composite. Energy dispersive spectroscopy (EDS) analysis and SEM analysis were carried out to investigate the variation in elemental composition and surface morphology of machined surfaces respectively.
Effect of different reinforcements in wire electric discharge machining of various geometrical profiles in metal matrix composites
Int J Interact Des Manuf
Singh, Dhirendra Pratap (Autor:in) / Mishra, Sanjay (Autor:in)
01.01.2024
23 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Wire-EDM , Cutting velocity , Surface roughness , Regression modelling , Optimization , Composite desirability , EDS , SEM , Aluminum-based metal matrix composites , Hybrid composite Engineering , Engineering, general , Engineering Design , Mechanical Engineering , Computer-Aided Engineering (CAD, CAE) and Design , Electronics and Microelectronics, Instrumentation , Industrial Design
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