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Comparative Study of Friction Stir, Stud and Seam Welding of Aluminium Alloys Using Different Grades 使用不同等级铝合金进行搅拌摩擦焊、螺柱焊和接缝焊的比较研究
Pub Date : 2024-03-07 DOI: 10.46632/jemm/10/1/3
Friction stud welding is an innovative and efficient welding process used to create strong and reliable bonds between studs or fasteners and workpieces, particularly in applications where rapid and secure fastening is critical. This welding technique involves generating friction and heat between the stud and workpiece to forge a strong joint. The process consists of several key steps, including preparation, rotation, weld formation, and cooling. Friction stud welding offers numerous advantages, such as speed, consistency, minimal distortion, and the elimination of the need for additional filler materials. It is widely employed in various industries, including construction, automotive, and aerospace, for applications ranging from structural steel connections to automotive component assembly. However, successful friction stud welding necessitates careful selection of materials, welding parameters, and skilled operators to ensure durable and dependable welded joints. This abstract provides a concise overview of the friction stud welding process and its essential features.
摩擦螺柱焊是一种创新、高效的焊接工艺,用于在螺柱或紧固件与工件之间形成牢固可靠的结合,尤其适用于对快速、安全紧固要求极高的应用场合。这种焊接技术通过在螺柱和工件之间产生摩擦和热量来形成牢固的连接。该工艺由几个关键步骤组成,包括准备、旋转、焊接成型和冷却。摩擦螺柱焊具有速度快、一致性好、变形小以及无需额外填充材料等众多优点。摩擦螺柱焊广泛应用于建筑、汽车和航空航天等各行各业,应用范围从钢结构连接到汽车部件组装。然而,成功的摩擦螺柱焊接需要精心选择材料、焊接参数和熟练的操作人员,以确保焊接接头的耐用性和可靠性。本摘要简要概述了摩擦螺柱焊接工艺及其基本特点。
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引用次数: 0
Review on Factors Affecting Efficiency of Shell and Tube Heat Exchanger 管壳式热交换器效率影响因素综述
Pub Date : 2024-03-07 DOI: 10.46632/jacp/3/1/3
Evangeline Sheeba, Mohamed Khutbuddin, Noorul Arshadh
Heat exchanger is one amongst promising thermal device in which heat transfer takes place between hot fluid and cold fluid. Among various classifications of warmth exchangers, the main focus was shown by researchers on indirect contact type compact heat exchangers. Among them the shell and tube device belongs to fluid to fluid type heat transfer device. Main applications of shell and tube device feed device in process industries, refineries, chemical plants and power plants. Usually the analysis of shell and tube heat exchangers are divided into two parts namely shell side and tube side analysis. Shell side analysis is easy and doesn't involve much modification. Whereas the tube side analysis is complex and it's done by varying baffle design and elevation with regard to arrangements of tubes. The most disadvantage of shell and tube device is pressure drop which occur at the end of tubes. To overcome this problem, drilled cylindrical copper block has been introduced to switch the tube part through which the new fluid flows and therefore the cold fluid is circulated through the shell. With this design modification, the effectiveness, mass rate, overall heat transfer co efficient are simulated and analysed.
热交换器是热流体和冷流体之间进行热传递的一种有前途的热设备。在各种热交换器分类中,研究人员主要关注间接接触式紧凑型热交换器。其中,管壳式设备属于流体对流体型热交换设备。壳管式换热器主要应用于加工工业、炼油厂、化工厂和发电厂。壳管式换热器的分析通常分为两部分,即壳侧和管侧分析。壳侧分析比较简单,不涉及太多修改。而管侧分析则比较复杂,它是通过改变挡板设计和管子排列的高度来完成的。管壳式装置的最大缺点是在管子末端会产生压降。为了克服这一问题,采用了钻孔圆柱形铜块来切换新流体流经的管子部分,从而使冷流体在管壳中循环。通过这种设计修改,我们模拟并分析了效率、质量率、整体传热系数。
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引用次数: 0
Recent Research in Wire Cut Electrical Discharge Machining Process 线切割放电加工工艺的最新研究成果
Pub Date : 2024-03-07 DOI: 10.46632/jmc/3/1/6
Suresh Babu
A product's shape and size are developed through the manufacturing process, which is essential to all sectors. With its unique thermal machining technique, Wire Cut Electrical Discharge Machining (WEDM), items with sharp edges and varied hardness that prove challenging to produce using conventional machining methods can be precisely machined. Utilizing the widely used non-contact material removal technique, the practical technology of the WEDM process is based on the typical EDM sparking phenomenon. When the process was first introduced, WEDM has developed from a crude way to make tools and dies to the best way to produce micro-scale parts with the highest level of surface finish quality and dimensional accuracy. This paper reviews the extensive amount of research done from the EDM process to the development of the WEDM. It reports on the WEDM research that involves optimizing the process parameters and examining the impact of various factors on productivity and machining performance. The impact of multiple WEDM process input parameters, including wire speed, peak current, pulse on and off times, and peak on material removal rate (MRR), surface roughness (Ra), and micro structural analysis, on various process output responses is reviewed in this study.
产品的形状和尺寸是通过制造过程形成的,这对所有行业都至关重要。线切割放电加工(WEDM)是一种独特的热加工技术,它可以精确地加工出具有锐利边缘和不同硬度的产品,而传统的加工方法则很难加工出这些产品。线切割放电加工利用广泛使用的非接触材料去除技术,其实用技术基于典型的放电加工火花现象。线切割机床从最初用于制造工具和模具的简陋方法,发展成为生产具有最高表面光洁度和尺寸精度的微型零件的最佳方法。本文回顾了从电火花加工工艺到线切割机床开发所做的大量研究。它报告了 WEDM 的研究情况,其中包括优化工艺参数以及检查各种因素对生产率和加工性能的影响。本研究综述了多个线切割机床工艺输入参数(包括线速度、峰值电流、脉冲开和关时间以及材料去除率 (MRR)、表面粗糙度 (Ra) 和微观结构分析的峰值)对各种工艺输出响应的影响。
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引用次数: 0
Developing Composite Coating of PEEK and AgNP on 316L Stainless Steel Substrate for Biomedical Implant 在 316L 不锈钢基底上开发用于生物医学植入物的 PEEK 和 AgNP 复合涂层
Pub Date : 2024-03-06 DOI: 10.46632/jmc/3/1/5
Biomedical implants play a crucial role in modern healthcare, but their long-term success hinges on the materials used. This study focuses on developing a composite coating of polyetheretherketone (PEEK) and silver nanoparticles (AgNP) on 316L stainless steel substrates, aiming to enhance their biocompatibility and antibacterial properties. PEEK is known for its biocompatibility and mechanical properties, while AgNP exhibit excellent antibacterial activity. By combining these materials, we aim to create a coating that not only supports the integration of implants with surrounding tissue but also reduces the risk of infections, a common complication in implant surgery. The fabrication process involves depositing a PEEK layer on the stainless steel substrate, followed by the incorporation of AgNP using a suitable method such as electro spinning or dip coating. The coated substrates will undergo comprehensive characterization, including mechanical testing, surface analysis, and antibacterial efficacy assessment. The mechanical properties of the coating will be critical to ensure its durability and resistance to wear in the demanding environment of the human body. Furthermore, the chemical and biological properties of the coating will be evaluated to ensure its biocompatibility and safety for implantation. This study aims to contribute to the development of advanced coatings for biomedical implants, ultimately improving their performance and longevity. The findings of this research could lead to the development of safer and more effective biomedical implants, benefiting patients and healthcare systems worldwide.
生物医学植入物在现代医疗保健中发挥着至关重要的作用,但其长期成功与否取决于所使用的材料。本研究的重点是在 316L 不锈钢基底上开发聚醚醚酮(PEEK)和银纳米粒子(AgNP)的复合涂层,旨在增强其生物相容性和抗菌性能。PEEK 因其生物相容性和机械性能而闻名,而 AgNP 则具有出色的抗菌活性。通过将这些材料结合在一起,我们的目标是创造出一种涂层,它不仅能支持植入物与周围组织的整合,还能降低感染的风险,而感染是植入物手术中常见的并发症。制造过程包括在不锈钢基底上沉积 PEEK 层,然后使用电旋或浸渍涂层等合适的方法加入 AgNP。涂层基底将进行综合表征,包括机械测试、表面分析和抗菌效果评估。涂层的机械性能对于确保其在苛刻的人体环境中的耐用性和耐磨性至关重要。此外,还将对涂层的化学和生物特性进行评估,以确保其生物相容性和植入安全性。这项研究旨在促进生物医学植入物先进涂层的开发,最终提高植入物的性能和寿命。这项研究的成果将有助于开发更安全、更有效的生物医学植入物,造福全球患者和医疗保健系统。
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引用次数: 0
Comparison of Vibration Assisted Single Point and Two-Point Incremental Forming of Sheet Metal 振动辅助金属薄板单点和两点增量成形的比较
Pub Date : 2024-03-06 DOI: 10.46632/jemm/10/1/1
Vibration-assisted single-point incremental forming (VASPIF) and two-point incremental forming(TPIF) are two innovative techniques employed in sheet metal forming processes, each offering distinct advantages and limitations. VASPIF utilizes high-frequency oscillations applied to the forming tool to reduce friction and improve material flow, resulting in enhanced formability and surface finish. Conversely, TPIFemploys two independently controlled forming tools to deform the sheet metal incrementally, allowing for greater geometric complexity and improved accuracy compared to VASPIF. However, TPIF typically requires more complex tooling and setup, potentially increasing manufacturing costs and setup time. Both techniques have shown promise in improving the formability of sheet metal components while offering unique capabilities suited to specific manufacturing requirements. Vibration-assisted single-point incremental forming (VASPIF) and two-point incremental forming (TPIF) are two advanced methods used in sheet metal forming, each with its unique characteristics, advantages, and limitations. In this comprehensive comparison, we will delve into the fundamental principles, process parameters, applications, advantages, and challenges associated with both techniques. Starting with VASPIF, this innovative approach involves applying high-frequency oscillations to the forming tool during the incremental forming process. These vibrations serve to reduce friction between the tool and the work piece, facilitating material flow and enhancing formability. By effectively decreasing thefrictional forces, VASPIF enables the deformation of difficult-to-form materials and improves the surface finish of the formed parts.
振动辅助单点增量成形(VASPIF)和两点增量成形(TPIF)是金属板材成形工艺中采用的两种创新技术,各自具有不同的优势和局限性。VASPIF 利用施加在成形工具上的高频振动来减少摩擦和改善材料流动,从而提高成形性和表面光洁度。相反,TPIF 使用两个独立控制的成形工具对金属板进行渐进变形,与 VASPIF 相比,几何复杂度更高,精度也更高。然而,TPIF 通常需要更复杂的工具和设置,可能会增加制造成本和设置时间。这两种技术都有望提高金属板材部件的成型性,同时提供适合特定制造要求的独特功能。振动辅助单点增量成形(VASPIF)和两点增量成形(TPIF)是金属板材成形中使用的两种先进方法,每种方法都有其独特的特点、优势和局限性。在本综合比较中,我们将深入探讨这两种技术的基本原理、工艺参数、应用、优势和挑战。从 VASPIF 开始,这种创新方法涉及在增量成形过程中对成形工具施加高频振动。这些振动可减少工具与工件之间的摩擦力,促进材料流动并提高成形性。通过有效减少摩擦力,VASPIF 可以使难以成型的材料变形,并提高成型零件的表面光洁度。
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引用次数: 0
Investigation of Composite Materials for Significant Damping Response in Automotive Applications 研究复合材料在汽车应用中的显著阻尼响应
Pub Date : 2024-03-06 DOI: 10.46632/jacp/3/1/2
Through the examination of composite components, engineers and manufacturers can enhance their understanding of failure criteria, the initiation of initial failures, and the propagation of damage within laminates. This study delves into the evolution of impact-induced degradation and establishes upper limits on force or Hertz failure thresholds for three distinct composite categories. Impact investigations reveal that the strength of composite materials significantly increases under dynamic impact conditions compared to static ones, underscoring the material's sensitivity to loading rates. Composite materials play a crucial role in achieving effective ballistic protection for armor platforms, given the varying energy levels of the physical loads they must withstand based on their intended applications. Precise design and manufacturing are necessary to provide adequate protection against impacts of different energies: low-energy impacts from tools during maintenance and operations, intermediate-energy impacts from external elements striking the surface, and high-energy impacts from weapons. Fiber-reinforced composite materials find widespread use across the aviation, marine, and terrestrial industries due to their outstanding specific strength, weight reduction benefits, and ease of manufacturing. They are particularly crucial in aerospace and military applications. Polyester resins offer a cost-effective and easily moldable alternative to epoxy resins in many fiberglass applications. This study aims to explore the low-velocity impact characteristics of E-Glass composites, which are more readily available and cost-effective compared to other reinforced composites. The research focuses on evaluating the impact properties of these materials through testing three different samples.
通过对复合材料部件的检查,工程师和制造商可以加深对失效标准、初始失效的起因以及层压板内部损伤扩展的理解。本研究深入探讨了冲击引起的退化演变,并为三种不同的复合材料类别确定了力或赫兹失效阈值的上限。冲击研究表明,与静态冲击条件相比,复合材料在动态冲击条件下的强度显著增加,这突出表明了材料对加载速率的敏感性。复合材料在装甲平台实现有效弹道防护方面发挥着至关重要的作用,因为根据其预期应用,它们必须承受不同能量水平的物理载荷。精确的设计和制造是针对不同能量冲击提供充分保护的必要条件:维护和操作过程中工具产生的低能量冲击、外部元素撞击表面产生的中等能量冲击以及武器产生的高能量冲击。纤维增强复合材料因其出色的比强度、减重优势和易制造性,在航空、航海和陆地工业中得到广泛应用。它们在航空航天和军事应用中尤为重要。在许多玻璃纤维应用中,聚酯树脂是环氧树脂的一种成本效益高且易于成型的替代品。本研究旨在探索 E 玻璃复合材料的低速冲击特性,与其他增强复合材料相比,E 玻璃复合材料更容易获得,成本效益更高。研究重点是通过测试三种不同的样品来评估这些材料的冲击特性。
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引用次数: 0
Performance of Liquid Lubricants Using Nano-Additvies in Minimum Quantity Lubrication in Machining Process 使用纳米添加剂的液体润滑剂在加工过程中的最小润滑量性能
Pub Date : 2024-03-06 DOI: 10.46632/jmc/3/1/4
Dr Sunil K. Bangar, Neeraj Kumar
The performance of liquid lubricants employing nano-additives in minimum quantity lubrication (MQL) during the machining process has garnered significant attention in recent years. Nano-additives, due to their unique properties and characteristics, have demonstrated potential in enhancing the lubricating properties of conventional fluids used in MQL. These additives, typically ranging from nanoparticles to nanofluids, offer improved lubricity, reduced friction, and enhanced heat dissipation, thereby leading to better machining performance, extended tool life, and improved surface quality of machined components. By reducing the amount of lubricant used while maintaining or even enhancing performance, MQL with nano-additives not only addresses environmental concerns associated with excessive fluid usage but also contributes to cost savings and increased productivity in machining operations. However, challenges such as dispersion stability, compatibility with base fluids, and cost-effectiveness need to be carefully addressed to fully realize the potential benefits of incorporating nano-additives into MQL lubricants for machining applications. Ongoing research and development efforts in this field aim to further optimize the formulation and application of these advanced lubricants to meet the ever-evolving demands of modern manufacturing processes.
近年来,采用纳米添加剂的液体润滑剂在加工过程中的最小量润滑(MQL)性能引起了广泛关注。纳米添加剂因其独特的性能和特点,在提高用于 MQL 的传统液体的润滑性能方面已显示出潜力。这些添加剂通常包括纳米颗粒和纳米流体,可提高润滑性、减少摩擦和增强散热,从而提高加工性能、延长刀具寿命和改善加工部件的表面质量。通过在保持甚至提高性能的同时减少润滑剂用量,使用纳米添加剂的 MQL 不仅解决了与过量使用润滑液相关的环境问题,还有助于在加工操作中节约成本并提高生产率。然而,要充分发挥将纳米添加剂加入加工应用的 MQL 润滑油中的潜在优势,还需要认真应对分散稳定性、与基础油的兼容性和成本效益等挑战。该领域正在进行的研发工作旨在进一步优化这些先进润滑油的配方和应用,以满足现代制造工艺不断发展的需求。
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引用次数: 0
Development of Fire Resistant Composite Material Using Fire Retardant Filler for Electrical Application 使用阻燃填料开发电气用阻燃复合材料
Pub Date : 2024-03-06 DOI: 10.46632/jemm/10/1/2
Safety is paramount across diverse sectors, with a growing emphasis on dependability. Preventing fires in electrical contexts and employing fire-resistant techniquesusing additives have become crucial. This involves the development of composite materials, typically incorporating substances like Alumina Rehydrate (ATH), metal hydroxides, or specialized additives such as epoxies, polyester, or polyurethane resins within polymer matrices. These formulations include fire-retardant fillers, underscoring their significance in enhancing safety and reliability. Increasing the fire resistance of the composite can be achieved through various methods such as delaying ignition, reducing flame spread, mitigating smoke emissions when exposed to high temperatures, and employing fire-resistant compounds to quench potential electrical arcs, especially in electrical applications where combustible materials pose significant hazards. These items consist of electrical casings, wire pathways, insulation, and other crucial components for ensuring fire safety within various systems. These components are chosen based on their electrical characteristics, strength, and the necessity forfire resistance, all of which contribute to achieving a harmonious balance. Carefulconsideration is given to adhesive matrices during the selection and optimization process as part of the development procedure. Advanced manufacturing methods such as Compression Melding, Resin Transfer Melding, or filament winding are utilized to produce composite components with standardized properties, enhancing overall efficiency.
各行各业都将安全放在首位,并越来越重视产品的可靠性。防止电气火灾和使用添加剂的防火技术已变得至关重要。这涉及复合材料的开发,通常在聚合物基质中加入氧化铝水合物(ATH)、金属氢氧化物等物质或环氧树脂、聚酯或聚氨酯树脂等专用添加剂。这些配方包括阻燃填料,在提高安全性和可靠性方面具有重要意义。提高复合材料的耐火性可通过多种方法实现,如延迟点火、减少火焰蔓延、减少高温时的烟雾排放,以及使用耐火化合物熄灭潜在的电弧,特别是在可燃材料构成重大危险的电气应用中。这些项目包括电气外壳、电线通道、绝缘材料和其他关键部件,以确保各种系统内的消防安全。选择这些部件的依据是其电气特性、强度和防火要求,所有这些都有助于实现和谐的平衡。作为开发流程的一部分,在选择和优化过程中对粘合剂基质进行了仔细考虑。先进的制造方法,如压制熔接、树脂转移熔接或丝线缠绕,可用于生产具有标准化特性的复合材料部件,从而提高整体效率。
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引用次数: 0
Differentiating Motorcycle Performance Between BS4 and BS6 Generation of KTM RC 390 Motorcycle using Data Visualization 利用数据可视化区分 KTM RC 390 摩托车 BS4 和 BS6 代的性能
Pub Date : 2024-03-04 DOI: 10.46632/jmc/3/1/1
This research project is crucial to understanding how motorcycle design is influenced by transitioning from Bharat Stage (BS) 4 to Bharat Stage (BS) 6 emission standards, particularly in the context of the KTM RC390 models from 2017 and 2020. The importance of this research is twofold. To begin with, it lets us evaluate howchanges to emission standards would affect things like engine management systems, emissions control technologies, environmental compliance, fuel economy, performance, and performance on motorcycles. The second benefit is that it gives people the tools they need to make educated decisions when buying motorbikes. In order to make my results more understandable, I want to use data visualization tools such as Matplotlib, Tableau, and Google Charts to show the differences between the two models. Next, I will create an intuitive website that presents this data in an easy-tounderstand format. I want to do this by making use of the state-of-the-art FRAMER tool for website creation and design. Essentially, this study connects motorcycle design to pollution requirements, which helps consumers make better selections and uses technology to display facts clearly.
该研究项目对于了解摩托车设计如何受到从印度标准第 4 阶段(BS)向印度标准第 6 阶段(BS)排放标准过渡的影响至关重要,尤其是在 2017 年和 2020 年 KTM RC390 车型的背景下。这项研究具有双重意义。首先,它让我们能够评估排放标准的变化将如何影响发动机管理系统、排放控制技术、环境合规性、燃油经济性、性能以及摩托车的性能。第二个好处是,它为人们提供了在购买摩托车时做出明智决定所需的工具。为了让我的结果更容易理解,我想使用 Matplotlib、Tableau 和 Google Charts 等数据可视化工具来显示两种车型之间的差异。接下来,我将创建一个直观的网站,以易于理解的格式展示这些数据。为此,我将使用最先进的 FRAMER 工具来创建和设计网站。从本质上讲,这项研究将摩托车设计与污染要求联系起来,帮助消费者做出更好的选择,并利用技术清晰地展示事实。
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引用次数: 0
Integration of Blockchain & Machine Learning Approach in Sustainable Material Selection 区块链与机器学习方法在可持续材料选择中的融合
Pub Date : 2024-03-04 DOI: 10.46632/jmc/3/1/3
N. Gandhi, Nivetha Martin, P. Pandiammal
Sustainable materials with special focus on environment are the need of the hour. The alarming signs of global warming demands the emerge of sustainable industries with the goal of producing products using sustainable materials. The process of drawing optimal decisions on sustainable materials is highly intricated and henceforth this research work proposes a comprehensive and integrated approach of decision-making. Block chain together with Random Forest algorithm is leveraged in determining the sustainable material selection. The combined approach resolves the challenges of managing data integrity in obtaining precise results. On comparing the results using performance metrics, it is evident that the proposed approach facilitates optimum decision making of sustainable materials to a greater extent. This integrated approach shall be applied to several decision-making scenarios customizing the parameters to the need of the industrial problems.
以环保为重点的可持续材料是当务之急。令人担忧的全球变暖迹象要求出现可持续工业,其目标是使用可持续材料生产产品。可持续材料的优化决策过程非常复杂,因此本研究工作提出了一种全面综合的决策方法。区块链和随机森林算法被用于确定可持续材料的选择。这种综合方法解决了管理数据完整性以获得精确结果的难题。通过使用性能指标对结果进行比较,可以看出所提出的方法在更大程度上促进了可持续材料的优化决策。这种综合方法将应用于多种决策方案,根据工业问题的需要定制参数。
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引用次数: 0
期刊
1, 2024
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