A Review of the Mechanical Properties of Biochar-Reinforced Aluminium 7075/SiC Composites Gadham Setty Guru Mahesh, D.S. Vijayan, K. Sivakumar, N. Kavitha, Vengatesan Arumugam, et al. Journal of Physics Conference Series, 2024 In the current research, we analyse various mechanical and machining characteristics of SIC/Al 7075 aluminium composites. These alloys exhibit twinning effects at high temperatures, which reduce their usage for functional applications. To overcome this, we add several reinforcements such as carbide and oxide groups, as well as ceramic strengthening particulates and biochar reinforcement. Micron-sized reinforcement is commonly utilized for several applications, thus improving the percentage of reinforcement to a maximum because it promotes higher hardness and toughness for machining characteristics. In this regard, we replace nano-sized strengthening particulates for such applications. We infer that the percentage of reinforcement of such ceramic particles cannot be increased due to particle agglomeration. Considering this as a major drawback, we illustrate a study on nano-sized reinforcement on Al7075 alloy with different processing methods in this investigation. We also carry out the modification of biochar.
Experimental investigations on the drilling parameters to minimize delamination and taperness of hybrid GFRP/Al2O3 composites by using ANOVA approach Gadhamsetty Guru Mahesh, Jayakrishna Kandasamy World Journal of Engineering, 2023 Purpose Drilling holes in composite materials is a complex and challenging process because of their intrinsic anisotropic characteristics and unevenness compared to conventional metals. Hybridization of composites enhances the strength and hardness of the material but makes it more difficult to drill a hole in it. The purpose of this study is to optimize the drilling to minimize the delamination and taperness of hybrid glass fiber reinforced plastic (GFRP)/Al2O3 composites. Design/methodology/approach The present study investigates the impact of drilling parameters on delamination of the drilled hole and the taperness of the hole on hybrid GFRP/Al2O3. Optimum drilling conditions for minimizing delamination and taperness of the hole are determined to enhance the hole quality. Feed (f), speed (N) and drill diameter (D) are the parameters taken into consideration for drilling operation. By applying Taguchi’s signal-to-noise ratio analysis, process parameters have been optimized to reduce the delamination and taperness of holes on Hybrid GFRP/Al2O3 composites. The effect of process parameters was analyzed using the analysis of variance method. Findings The investigational results confirmed that the delamination is positively affected by speed, drill diameter and feed rate. Also, the taperness of the hole is positively affected by the drill diameter. Regression-based models were developed to predict the delamination and taperness of the hole matched with the experimental results, which are attained with an order of 95% and 97%. Originality/value Minimum delamination was found at the optimum condition of drill diameter 10 mm, feed at 0.225 mm/rev and the speed at 151 rpm and minimum taperness were found at the optimum condition of drill diameter 10 mm, feed at level 0.3 mm/rev and speed at 86 rpm for hybrid laminate composite (S-glass+ GFRP/Al2O3) were evaluated.
Experimental investigation of hygrothermal behaviour of hybrid composite materials International Journal of Mechanical Engineering and Technology, 2018
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Prediction of taper angle in laser drilling of S32750 using integrated ANFIS N Rajesh, GG Mahesh, P Venkataramaiah Materials Today: Proceedings 62, 6009-6017 , 2022 2022 Citations: 2
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