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Review Paper on Development of Nano Inserts for Machining HRSA Materials for Aerospace Applications 航空航天用HRSA材料加工用纳米刀片的发展综述
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/32943
S. M. Kotian, K. Narayanaswamy, D. S. M
In the current scenario, cutting tool industries use the powder material tungsten carbide of 60-80 microns grain size to produce cutting inserts. There are a lot of scopes to improve the properties of cutting tool materials to enhance their ability to machine challenging materials like heat resistant super alloys (HRSA). Reducing the grain size of cutting tool material powder to nano level may help to increase the strength, substrate hardness, Fracture toughness, and thermal conductivity of the cutting insert. This review studies different strategies used to develop nano powders for the cutting tool application. We observed that most of the studies focused on the latest powders used in cutting tool industries like tungsten carbide, boron carbide powders which are reduced as nano powders, pressed, and sintered with different techniques like hot isostatic pressing (HIP), Spark plasma sintering. Finally, the current research gaps and the future challenges in understanding the development of nano powders for cutting tool applications are critically discussed, providing an interpretation of the possible directions for scientific development in this field.
在目前的情况下,刀具行业使用粒度为60-80微米的粉末材料碳化钨来生产切削刀片。有很多范围可以改善切削工具材料的性能,以提高其加工具有挑战性的材料(如耐热超级合金(HRSA))的能力。将切削工具材料粉末的粒度减小到纳米级可能有助于提高切削镶片的强度、基体硬度、断裂韧性和热导率。这篇综述研究了用于开发刀具应用的纳米粉末的不同策略。我们观察到,大多数研究都集中在刀具行业使用的最新粉末上,如碳化钨、碳化硼粉末,这些粉末被还原为纳米粉末,通过热等静压(HIP)、火花等离子体烧结等不同技术压制和烧结。最后,批判性地讨论了当前的研究空白和未来在理解用于刀具应用的纳米粉末开发方面的挑战,为该领域的科学发展提供了可能的方向。
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引用次数: 0
Statical Significant Analysis of Hardness of Poly Vinyl Alcohol Crosslinked Glutaraldehyde Using Tukey HSD Method Tukey HSD法测定聚乙烯醇交联戊二醛硬度的统计学意义
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/31057
N. M., S. Patil
The non-biodegradable polymer occupying the world leads to many issues concerning global warming and other related problems. Due to these issues, there is a need for biodegradable polymers to overcome these issues. This paper focussed on processing polyvinylalcohol (PVA) crosslinked with glutaraldehyde(GA) and studying the harness of crosslinked polymer. The polyvinylalcohol is crosslinked from 0 to 40 volume percent of glutaraldehyde than post cured immersed in 2 mole of Sulfuric acid (H2SO4) for 24 hours to attain complete crosslinking. The Excel Durometer Shore D Hardness tester was used to determine the hardness of PVA and PVA crosslinked GA polymer composites as per ASTM D2240 standards. The influence of glutaraldehyde crosslinking drastically improves the polymer's hardness by up to 15%, and further marginal changes are found. The Tukey HSD method is used to study the significant level and accomplish the optimum crosslinking percentage. From the Tukey HSD test, it is found that the f value more than 5.35 are high level statically significant.
不可生物降解的聚合物占据了世界,导致了许多与全球变暖和其他相关问题有关的问题。由于这些问题,需要可生物降解的聚合物来克服这些问题。本文主要研究了戊二醛交联聚乙烯醇(PVA)的加工及交联聚合物的处理。聚乙烯醇用0至40体积%的戊二醛交联,然后浸入2摩尔硫酸(H2SO4)中24小时后固化,以实现完全交联。根据ASTM D2240标准,使用Excel硬度计肖氏D硬度计测定PVA和PVA交联GA聚合物复合材料的硬度。戊二醛交联的影响使聚合物的硬度大大提高了15%,并发现了进一步的边际变化。采用Tukey HSD法研究了交联度的显著性水平,得到了最佳交联率。从Tukey HSD测试中发现,f值大于5.35是高水平的静态显著性。
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引用次数: 0
Experimental Investigation of InTube Condensation of HFO-1234yf HFO-1234yf管内冷凝的实验研究
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/32938
Muthuraju N P, B. Sadashive Gowda, G. Narasimham, H. M. Gurudatt
An increase in global warming potential and other environmental concerns are demanding new environmentally friendly refrigerants. For effective performance of refrigeration and air conditioning system condenser design play a vital role. Experiments were conducted to study the condensation of R1234yf refrigerant inside a copper tube of 8.4 mm in diameter and 750 mm in length. The heat transfer coefficients of refrigerant were calculated against mass flux varying from 150–300 kg/m2 s, quality of refrigerant 0.3 to 0.8, and saturated temperature 30 and 500 C. The experimental heat transfer coefficients were compared to the heat transfer coefficients by the recent MM Sha correlation. The experimental results are in good agreement with an absolute mean deviation of nearly 20% with the MM Sha heat transfer coefficient.
全球变暖潜力的增加和其他环境问题要求使用新的环保制冷剂。冷凝器的设计对制冷空调系统的有效性能起着至关重要的作用。实验研究了R1234yf制冷剂在直径8.4mm、长度750mm的铜管内的冷凝。制冷剂的传热系数是根据150–300 kg/m2 s的质量流量、0.3至0.8的制冷剂质量以及30和500 C的饱和温度计算的。通过最近的MM-Sha相关性将实验传热系数与传热系数进行比较。实验结果与MM-Sha传热系数的绝对平均偏差接近20%,吻合较好。
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引用次数: 0
Design and Analysis of Hose Clamp 软管卡箍的设计与分析
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/31055
Ramesh Kumar S C, Sunil Kumar S Tembad, Vikhyath P, Vishal J P, Shaik Shashavali
A hose is attached to and sealed off of a fitting such a barb or nipple using a hose clamp, hose clip, or hose lock. This study examines the relationship between experimental results and theoretical models to analyse the bending stress in hose clamps. in the experiment, stiff cylinder was encircled by flat section band clamps, and strain and related displacement were measured. To steadily increase torque till failure, the clamp nut was tightened. The theoretical torque value and the torque obtained from FEM analysis are compared and further analyzed to prepare the hose clamp.
软管是用软管夹、软管夹或软管锁连接到诸如倒钩或乳头之类的配件上并密封起来的。本研究检验了实验结果与理论模型之间的关系,以分析软管夹的弯曲应力。在实验中,刚性圆柱体被平截面带夹包围,并测量应变和相关位移。为了稳定地增加扭矩直到失效,夹紧螺母被拧紧。将理论扭矩值与有限元分析得到的扭矩值进行了比较,并进行了进一步的分析,以制备软管卡箍。
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引用次数: 0
Design and Analysis of Straight and Curved Fins 直翅片和弯曲翅片的设计与分析
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/31042
J. V. Bhanuteja, S. Gowtham, V. Harish Naidu, V. Jaya Krishna, A. Raviteja, M. Manish
A series of fins commonly known as heat sinks are adapted in various thermal appliances the computer and other electronic systems, where large chunks of heat generated have to be dissipated. This project is mainly concerned with developing unconventional fins as a substitute to the conventional rectangular fins.Heat Transfer analysis of curved  fins was carried out  in this work which can be a substitute for a normal rectangular fins as heat sinks. A detailed evaluation of temperature distribution and heat flux rates with heat sinks made up of curved fins is accomplished and compared with the rectangular fins. This objective was fulfilled for three different  types of materials  mainly copper, aluminium , magnesium. The entire project was done using CATIA platform for modelling and ANSYS for finite element analysis.
一系列通常被称为散热器的散热片适用于各种热设备,如计算机和其他电子系统,其中产生的大块热量必须消散。该项目主要致力于开发非常规翅片,以取代传统的矩形翅片。本文对弯曲翅片进行了传热分析,该翅片可以代替普通矩形翅片作为散热器。对由弯曲翅片组成的散热器的温度分布和热通量率进行了详细评估,并与矩形翅片进行了比较。这一目标是针对三种不同类型的材料实现的,主要是铜、铝和镁。整个项目使用CATIA平台进行建模,使用ANSYS进行有限元分析。
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引用次数: 0
Value Stream Mapping- Tool to Optimize the Process 价值流映射-优化过程的工具
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/31221
Pradip Gunaki
Value Stream Mapping is known for identifying and eliminating or streamlining non-value-adding activities in manufacturing, production, and business processes. To depict the current status of the operation, a flow diagram depicting the process is drawn. Non-value actions are detected by their waste of time and resources in each step and between each phase. With the use of simulation tools, the process is examined for the possibility of dramatically reducing and simplifying it to the bare minimum of steps. The fraction of value-adding time in the overall process increases when waste is reduced, and the process throughput speed improves. This improves the effectiveness (the right things are done) and efficiency of the revised process (needing fewer resources). With the use of Arena simulation software, this study illustrates how to use corrective procedures in the die casting sector to eliminate non-value added tasks. The future state of the reengineered process is flow charted, with process stages and information flows reworked, simplified, and made less expensive, as well as increased productivity.
价值流映射以识别和消除或简化制造、生产和业务过程中的非增值活动而闻名。为了描述操作的当前状态,绘制了描述该过程的流程图。通过在每个步骤和每个阶段之间浪费时间和资源来检测无价值的操作。通过使用仿真工具,可以检查该过程是否有可能大幅减少并简化到最少的步骤。当浪费减少时,整个过程中增值时间的比例就会增加,过程的吞吐速度也会提高。这提高了修改过程的有效性(做了正确的事情)和效率(需要更少的资源)。通过Arena仿真软件的使用,本研究说明了如何在压铸部门使用纠正程序来消除非增值任务。重新设计的过程的未来状态是流程图,过程阶段和信息流被重新加工、简化,并且成本更低,同时提高了生产率。
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引用次数: 0
Conversion and Management of Plastic Waste into useful Resources – A review 塑料废物转化为有用资源的研究进展
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/32942
Balaji S, N. Kapilan, H. V. Srikanth, P. B a
The objective of this review paper is to focus few of the notable research that has been carried out to tackle the problems of disposal of plastic waste and its effective utilization into useful products. Due to less weight, low cost, non-corrosiveness of plastics have led to excessive usage and thus increasing its production resulting in the accumulation of waste plastic in the environment. The previous studies report several techniques to recycle and convert unwanted plastics into alternative fuels. This would be an added advantage to solve the problem of shortage of conventional fuel and thereby promote a sustainable environment. Nevertheless, further research is necessary to report some of the issues that have not yet been addressed.
这篇综述的目的是集中一些值得注意的研究,已经开展了解决塑料废物的处理问题,并将其有效地利用成有用的产品。由于塑料重量轻,成本低,无腐蚀性,导致过度使用,从而增加了其产量,导致废塑料在环境中的积累。之前的研究报告了几种回收和将不需要的塑料转化为替代燃料的技术。这将是一个额外的优势,以解决传统燃料短缺的问题,从而促进可持续的环境。然而,需要进一步的研究来报告一些尚未解决的问题。
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引用次数: 0
Fault Prediction of Ball Bearings using Machine Learning: A Review 基于机器学习的滚珠轴承故障预测研究综述
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/31239
Mohammed Shahid Kolhar, Niranjan Hiremath
Machine learning and deep learning algorithms have shown positive outcomes in a variety of industries. The number of defects in machinery equipment is predicted to rise as the usage of smart machinery grows. The use of diverse algorithms to detect and diagnose machine faults is becoming more common. Using both open-source and closed-source data sets and machine learning methods, a variety of studies have been conducted and published. This paper reviews current work that uses the bearing data set to detect and diagnose equipment faults using machine learning and deep learning methods. In this paper, the working algorithm, result, and other relevant details are described, as well as the recently published studies.
机器学习和深度学习算法在各个行业都取得了积极成果。随着智能机械使用的增长,预计机械设备中的缺陷数量将增加。使用各种算法来检测和诊断机器故障变得越来越普遍。利用开源和闭源数据集以及机器学习方法,进行并发表了各种研究。本文回顾了目前使用轴承数据集使用机器学习和深度学习方法检测和诊断设备故障的工作。本文描述了工作算法、结果和其他相关细节,以及最近发表的研究。
{"title":"Fault Prediction of Ball Bearings using Machine Learning: A Review","authors":"Mohammed Shahid Kolhar, Niranjan Hiremath","doi":"10.18311/jmmf/2022/31239","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31239","url":null,"abstract":"Machine learning and deep learning algorithms have shown positive outcomes in a variety of industries. The number of defects in machinery equipment is predicted to rise as the usage of smart machinery grows. The use of diverse algorithms to detect and diagnose machine faults is becoming more common. Using both open-source and closed-source data sets and machine learning methods, a variety of studies have been conducted and published. This paper reviews current work that uses the bearing data set to detect and diagnose equipment faults using machine learning and deep learning methods. In this paper, the working algorithm, result, and other relevant details are described, as well as the recently published studies.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48975348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Conduction Heat Study of Different Coil Design of Electric Iron 电熨斗不同线圈设计的导热研究
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/31242
Nurshaira Binti Mat Nasir, A. F. Zubair, Ana Syahidah Mohd Rodzi, Rizal Mohamed Noor, A. Hemdi, P. Kataraki
Electric iron pulls energy from the mains supply and heats a coil within then the heat is transferred to the bottom plate through conduction process which is placed against the wrinkled garment. The problem of existing dry iron is the heating element continues to get hotter until the power source is continuously drawn from electricity, do not heat up sufficiently, needed a continual charge from its platform every few minutes for prolonged use, cannot be heat up rapidly and fast aging problem. Hence, it is necessary to run the finite element analysis on electric iron part model. The simulation focusses on thermal analysis as it can ease the study related to the heat path and thermal design of simulated product that can be used to improve the efficiency of existing product. The 3D part models of electric iron and five different type of heating coil were designed. Rheological data and important properties of the electric irons were imported as a parameter database in the software to create the meshing on the model. The input parameters are heat power, heat flux and convection while the variable for the simulation process are design of heating coil, power supply, thickness of heating coil and material of soleplate. Based on the simulated part model, the features recommended is design coil 4 with power supply 1900W, coil thickness 0.0015m and ceramic soleplate as these variables has highest temperature and shortest steady state time.
电熨斗从电源中提取能量并加热线圈,然后通过传导过程将热量传递到底板,底板紧贴褶皱的衣服。现有的干铁的问题是,加热元件持续变热,直到电源不断从电中汲取,没有充分加热,需要每隔几分钟从其平台持续充电才能长时间使用,不能快速加热和快速老化。因此,有必要对电熨斗零件模型进行有限元分析。模拟侧重于热分析,因为它可以简化与模拟产品的热路径和热设计相关的研究,从而可以用来提高现有产品的效率。设计了电熨斗和五种不同类型加热线圈的三维零件模型。将电熨斗的流变数据和重要特性作为参数数据库导入软件中,以在模型上创建网格。输入参数是热功率、热通量和对流,而模拟过程的变量是加热线圈、电源、加热线圈厚度和底板材料的设计。基于模拟零件模型,推荐的特征是设计电源为1900W、线圈厚度为0.0015m、陶瓷底板的线圈4,因为这些变量具有最高的温度和最短的稳态时间。
{"title":"Conduction Heat Study of Different Coil Design of Electric Iron","authors":"Nurshaira Binti Mat Nasir, A. F. Zubair, Ana Syahidah Mohd Rodzi, Rizal Mohamed Noor, A. Hemdi, P. Kataraki","doi":"10.18311/jmmf/2022/31242","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31242","url":null,"abstract":"Electric iron pulls energy from the mains supply and heats a coil within then the heat is transferred to the bottom plate through conduction process which is placed against the wrinkled garment. The problem of existing dry iron is the heating element continues to get hotter until the power source is continuously drawn from electricity, do not heat up sufficiently, needed a continual charge from its platform every few minutes for prolonged use, cannot be heat up rapidly and fast aging problem. Hence, it is necessary to run the finite element analysis on electric iron part model. The simulation focusses on thermal analysis as it can ease the study related to the heat path and thermal design of simulated product that can be used to improve the efficiency of existing product. The 3D part models of electric iron and five different type of heating coil were designed. Rheological data and important properties of the electric irons were imported as a parameter database in the software to create the meshing on the model. The input parameters are heat power, heat flux and convection while the variable for the simulation process are design of heating coil, power supply, thickness of heating coil and material of soleplate. Based on the simulated part model, the features recommended is design coil 4 with power supply 1900W, coil thickness 0.0015m and ceramic soleplate as these variables has highest temperature and shortest steady state time.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49040730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biodegradable Nano-Cellulose and its Composite Materials for Food Packaging Applications : A Review 可生物降解纳米纤维素及其复合材料在食品包装中的应用
Q4 Energy Pub Date : 2023-03-15 DOI: 10.18311/jmmf/2022/31060
Rajeshwari Halagalimath, J. R., Nagaraju Kottom
Bagasse is a fibrous material obtained after crushing sugarcane to extract its juice. this sugarcane bagasse can be utilized to produce cellulose nano-crystals for various applications. Researchers have been studying the manufacturing of nano-cellulose-based products and food packaging films. the evolution of environmentally friendly and ecologically balanced food packaging materials has gotten a lot of interest as a potential solution to partially replace the perishable fossil fuel-derived plastic. Nano-cellulose and so its uses have lately received considerable attention across both research and application areas due to their attractive characteristics such as exceptional mechanical properties, larger surface area, rich hydroxyl for alteration, and biological properties with 100 per cent environmental protection. It is widely produced around the world in big quantities. It is a sugar industry waste product. It is most widely employed in the paper industry, although researchers have proposed that various mechanical and chemical treatments can aid in the extraction of cellulosic fibres, pure cellulose, cellulose nano-fibers (CNF), and cellulose nano-crystals (CNC). These extracted components have a wide range of uses in the manufacturing of regenerated cellulosic fibre and composite materials. The extraction processes for these extracted components in food packaging are discussed in this review study, as well as their usual application in composite industries.
蔗渣是一种将甘蔗压碎后提取汁液的纤维材料。这种甘蔗渣可用于生产用于各种应用的纤维素纳米晶体。研究人员一直在研究纳米纤维素产品和食品包装薄膜的制造。环境友好和生态平衡的食品包装材料的发展已经引起了人们的兴趣,因为它是一种潜在的解决方案,可以部分取代易腐烂的化石燃料衍生塑料。纳米纤维素及其用途最近在研究和应用领域都受到了相当大的关注,因为它们具有独特的机械性能、更大的表面积、丰富的改性羟基以及100%环保的生物特性。它在世界各地大量生产。它是制糖工业的废物。它在造纸工业中应用最为广泛,尽管研究人员提出,各种机械和化学处理可以帮助提取纤维素纤维、纯纤维素、纤维素纳米纤维(CNF)和纤维素纳米晶体(CNC)。这些提取的组分在再生纤维素纤维和复合材料的制造中具有广泛的用途。综述了这些提取成分在食品包装中的提取工艺,以及它们在复合材料工业中的常见应用。
{"title":"Biodegradable Nano-Cellulose and its Composite Materials for Food Packaging Applications : A Review","authors":"Rajeshwari Halagalimath, J. R., Nagaraju Kottom","doi":"10.18311/jmmf/2022/31060","DOIUrl":"https://doi.org/10.18311/jmmf/2022/31060","url":null,"abstract":"Bagasse is a fibrous material obtained after crushing sugarcane to extract its juice. this sugarcane bagasse can be utilized to produce cellulose nano-crystals for various applications. Researchers have been studying the manufacturing of nano-cellulose-based products and food packaging films. the evolution of environmentally friendly and ecologically balanced food packaging materials has gotten a lot of interest as a potential solution to partially replace the perishable fossil fuel-derived plastic. Nano-cellulose and so its uses have lately received considerable attention across both research and application areas due to their attractive characteristics such as exceptional mechanical properties, larger surface area, rich hydroxyl for alteration, and biological properties with 100 per cent environmental protection. It is widely produced around the world in big quantities. It is a sugar industry waste product. It is most widely employed in the paper industry, although researchers have proposed that various mechanical and chemical treatments can aid in the extraction of cellulosic fibres, pure cellulose, cellulose nano-fibers (CNF), and cellulose nano-crystals (CNC). These extracted components have a wide range of uses in the manufacturing of regenerated cellulosic fibre and composite materials. The extraction processes for these extracted components in food packaging are discussed in this review study, as well as their usual application in composite industries.","PeriodicalId":39575,"journal":{"name":"Journal of Mines, Metals and Fuels","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49080475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Journal of Mines, Metals and Fuels
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