Journal of Recent Trends in Mechanics

Micro Structural and Mechanical Properties of Wear Resistant Coatings on Cast Iron Lathe Machine Slides and Beds

Avinash Yadav, Shailendra Kumar, Vikash Dwivedi — Wed, 24 Apr 2024 00:00:00 +0000

Surface damage incurred during translational sliding doesn't entail the formation of deep grooves due to asperity penetration or foreign particle intrusion. Instead, sliding wear is characterized by the relative movement of two even solid outsides under load. These exteriors may either be lubricated or not lubricated, metallic or non-metallic. The abrasive and fatigue wear experienced by slides and lathe beds considerably diminishes their longevity. The study's goal is to extend the beds' and slides' useful lives. An examination of WC-Co-Cr and Al2O3 + 40TiO2 coatings sprayed by a detonation gun (D-Gun) on bare metal couches and shots of a cast iron imitation lathe machine is performed. The ASTM G99 standard was used to conduct the wear tests on pin-on-disc devices for both coated and uncoated cast iron samples. The findings indicate that the detonation gun spray procedure was successful in depositing WC-Co-Cr and Al2O3 + 40TiO2 coatings onto the cast iron. When compared to the material that was left uncoated, the coated material has exposed significantly less attire loss. Detonation-sprayed coatings lose more weight over time as the load grows. The wear on the WC-Co-Cr coating has been minimal. As a result, cast iron coated with WC-Co-Cr has less wear than Al2O3 + 40TiO2 coated and uncoated cast iron.

Innovations in Refrigeration Technology: A Comprehensive Review of Nanoparticle-infused Refrigerants and Phase Change Materials in Condenser Systems

Sheetal Yadav, Amit Agrawal — Wed, 13 Mar 2024 00:00:00 +0000

This comprehensive review delves into recent breakthroughs within refrigeration technology, with a primary focus on the integration of nanoparticles into refrigerants and the incorporation of Phase Change Materials (PCMs) in condenser systems. The infusion of nanoparticles into refrigerants represents a notable avenue for elevating heat transfer efficiency and overall system performance. Simultaneously, the strategic use of PCMs in condenser systems offers an innovative approach to optimize thermal storage capacity and enhance energy utilization in refrigeration systems. Through an in-depth analysis of contemporary research findings, challenges, and future trajectories, this review aims to provide a holistic understanding of the current state of the art in refrigeration technology. The exploration of nanoparticle-infused refrigerants reveals their potential to significantly improve heat transfer rates and thermal conductivity, offering a promising solution for advancing the efficiency of refrigeration systems. Additionally, the review investigates the application of PCMs in condenser systems, emphasizing their role in mitigating peak energy demand, enhancing system reliability, and improving temperature control. Despite these advancements, the review underscores existing challenges such as nanoparticle aggregation, material compatibility, and long-term stability. Addressing these challenges is pivotal for the successful implementation of these innovations in practical applications. As the field evolves, ongoing research endeavours aim to optimize nanoparticle-infused refrigerants and fine-tune the integration of PCMs into condenser systems, ensuring a sustainable and efficient future for refrigeration technology.

Fabrication of Aluminium Can Crusher

Wed, 24 Apr 2024 00:00:00 +0000

Any aluminium or steel can empty, full, half-full, line rejects, or out-of-date merchandise may be crushed with a can crusher. Its main goal is to lessen the amount of waste materials produced, which will make recycling easier. There are various benefits to using a can crusher. To make waste materials easier to dispose of or recycle, the crusher decreases their size or changes their form. The purpose of the Can Crushing Machine is to reduce the volume of aluminium garbage cans to a greater extent. Its main function is to recycle aluminium trash resulting in less storage requirement and making transportation easier. One of the most crucial things you can do to protect the environment and prevent pollution is to recycle. However, recycling certain items, like aluminium cans, can be challenging because, when fully assembled, they take up a lot of room and frequently need to be transported to a specific location. In this research study, a Can crusher machine was fabricated which resulted in decreasing the Can size by 80 to 85%. This reduces the storage requirement as compared to the storage space required by uncrushed Cans. This machine can be used at schools, colleges, canteen, hotels, etc.

Cyclo Rotor Propulsion Equipped Drone

Tue, 09 Apr 2024 00:00:00 +0000

The modern era of rapidly developing countries in technological advancements has been noticing a great change and efforts in the change towards the future. The newer advancements and requirements of the world to step faster into the future seek one of the major research projects with the air automobiles. Air automobiles have been in use by the world for a few decades. Air automobiles have been seen in terms of helicopters, passenger aero planes, military aircraft, drones, carriers and many more. These are being used for many different purposes and on every day in the current stage for the migration of people from one place to another, transportation of goods, military operations, surveillance, delivery of parcels, etc. As there has been increasing demand for air automobiles in current days, hence there have been researches and developments taking place to cope with this current trend and demand. Hence, we need to overcome the current technologies that are in use by air automobiles to eradicate the drawbacks and come up with efficient technology. This propulsion system is aimed at replacing the current propeller system to overcome the various drawbacks of the current system like the reduction of the contribution of the air pollution, to increase the capacity of lifting greater weights and to come up with a comparatively compact design with more safety.

Review on Sisal and E Glass Fiber Composites for Roof Tiles

Sivasankaran, Aravindhan, Naveen — Thu, 11 Jan 2024 00:00:00 +0000

Composite materials have emerged as a pivotal technology in mechanical and civil engineering, with matrix and reinforcement serving as fundamental components. This dynamic interplay involves one element as the foundational material and the other as an augmenting agent, unified through epoxy resin as a bonding agent. This study focuses on a comprehensive review of hybrid composites, specifically employing sisal and E Glass fiber, for roofing tile applications. Rigorous examination of various articles from diverse journals informs the material characterization process, involving meticulous sample preparation and testing. Beyond sisal and E Glass composites, the literature also explores substitute materials, broadening the scope of potential applications. Emphasizing environmental consciousness, this research aligns with the green materials paradigm, presenting eco-friendly and sustainable solutions within the prevailing environmental context. By delving into alternative composites and their potential benefits, this work contributes to the ongoing discourse on advancing materials science for environmentally responsible applications in the fields of mechanical and civil engineering.