Role of TiC and h-BN particles on morphological characterization and surface effects of Al 4032 hybrid composites using EDM process
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Aluminum based hybrid metal matrix composites (HMMCs) are utilized in myriad of applications owing to their attractive properties such as low weight to high strength ratio, enriched mechanical and thermal properties over other conventional materials. In this work, the consequence of TiC and h-BN particles on morphological characterization and surface effects of aluminium based HMMCs during electrical discharge machining (EDM) process is discussed. The HMMCs are fabricated by varying the wt. % of TiC and then EDM is done by examining the input parameters such as peak current (A), pulse on time (μs) and gap voltage (v) under L27 orthogonal array method. The performance and surface effects of the machined surface are evaluated after completing the EDM process. The MRR appears to surge with the rise in the peak current and decays with increasing the wt. % of TiC particles. Although by amplifying the wt. % of TiC particles, the size of the craters and the voids is augmented on the machined surface. Furthermore, as the peak current upsurges, the microhardness of the machined samples are augmented.
KeywordsEDM Gap voltage (v) HMMCs MRR Microhardness Pulse on time (μs) Peak current (A) TiC
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