Journal of Manufacturing and Materials Processing最新文献

The Machining and Surface Modification of H13 Die Steel via the Electrical Discharge Machining Process Using Graphite Mixed Dielectric 使用石墨混合介质的放电加工工艺对 H13 模具钢进行加工和表面改性

Journal of Manufacturing and Materials Processing Pub Date : 2024-06-14 DOI: 10.3390/jmmp8030125

Dharmesh Singh, Parveen Goyal, Shankar Sehgal

引用次数: 0

Improving Deposited Surface Quality in Additive Manufacturing Using Structured Light Scanning Characterization and Mechanistic Modeling 利用结构光扫描表征和机理建模提高快速成型制造中的沉积表面质量

Journal of Manufacturing and Materials Processing Pub Date : 2024-06-14 DOI: 10.3390/jmmp8030124

Tuhin Mukherjee, Weijun Shen, Yiliang Liao, Beiwen Li

{"title":"Improving Deposited Surface Quality in Additive Manufacturing Using Structured Light Scanning Characterization and Mechanistic Modeling","authors":"Tuhin Mukherjee, Weijun Shen, Yiliang Liao, Beiwen Li","doi":"10.3390/jmmp8030124","DOIUrl":"https://doi.org/10.3390/jmmp8030124","url":null,"abstract":"The surface quality of parts fabricated using laser-directed energy deposition additive manufacturing significantly affects the fatigue life, corrosion resistance, and performance of the components. Surface quality improvements remain a key challenge in laser-directed energy deposition because of the involvement of multiple simultaneously occurring physical phenomena controlling the surface characteristics. Here, a unique combination of structured light scanning characterization and mechanistic modeling was used to identify three key physical factors that affect surface quality. These factors include a geometric factor, an instability factor, and a disintegration factor, which were calculated using a mechanistic model and correlated with the surface characteristics data obtained from the structured light scanning characterization. It was found that these factors can precisely explain the variations in the average surface roughness. In addition, skewness and kurtosis of the surfaces made by laser-directed energy deposition were found to be significantly better than those observed in traditional manufacturing. Based on the experimental and modeling results, a surface quality process map was constructed that can guide engineers in selecting appropriate sets of process variables to improve deposit surface quality in additive manufacturing.","PeriodicalId":509245,"journal":{"name":"Journal of Manufacturing and Materials Processing","volume":"59 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141338880","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

Additive Manufacturing of Ti3AlC2/TiC and Ti3AlC2/SiC Ceramics Using the Fused Granules Fabrication Technique 利用熔融颗粒制造技术快速成型制造 Ti3AlC2/TiC 和 Ti3AlC2/SiC 陶瓷

Journal of Manufacturing and Materials Processing Pub Date : 2024-06-13 DOI: 10.3390/jmmp8030123

M. Krinitcyn, Georgy Kopytov, Egor Ryumin

{"title":"Additive Manufacturing of Ti3AlC2/TiC and Ti3AlC2/SiC Ceramics Using the Fused Granules Fabrication Technique","authors":"M. Krinitcyn, Georgy Kopytov, Egor Ryumin","doi":"10.3390/jmmp8030123","DOIUrl":"https://doi.org/10.3390/jmmp8030123","url":null,"abstract":"In this work, SiC–Ti3AlC2 and TiC–Ti3AlC2 composites produced by additive manufacturing are investigated. The issue of obtaining ceramic materials using additive manufacturing technologies is currently relevant, since not many modern additive technologies are suitable for working with ceramic materials. The study is devoted to the optimization of additive manufacturing parameters, as well as the study of the structure and properties of the resulting objects. The fused granules fabrication (FGF) method as one kind of the material extrusion additive manufacturing (MEAM) technology is used to obtain composite samples. The main advantage of the FGF technology is the ability to obtain high-quality samples from ceramic materials by additive manufacturing. Composites with different ratios between components and different powder/polymer ratios are investigated. The technological features of the additive formation of composites are investigated, as well as their structure and properties. The optimal sintering temperature to form the best mechanical properties for both composites is 1300 °C. The composites have a regulatable porosity. Ti3AlC2 content, sintering temperature, and polymer content in the feedstock are the main parameters that regulate the porosity of FGF samples.","PeriodicalId":509245,"journal":{"name":"Journal of Manufacturing and Materials Processing","volume":"68 35","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141346529","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

Stability of Micro-Milling Tool Considering Tool Breakage 考虑刀具破损的微铣刀稳定性

Journal of Manufacturing and Materials Processing Pub Date : 2024-06-11 DOI: 10.3390/jmmp8030122

Yuan-Yuan Ren, Bao-Guo Jia, Min Wan, Hui Tian

{"title":"Stability of Micro-Milling Tool Considering Tool Breakage","authors":"Yuan-Yuan Ren, Bao-Guo Jia, Min Wan, Hui Tian","doi":"10.3390/jmmp8030122","DOIUrl":"https://doi.org/10.3390/jmmp8030122","url":null,"abstract":"Micro-milling, widely employed across various fields, faces significant challenges due to the small diameter and limited stiffness of its tools, making the process highly susceptible to cutting chatter and premature tool breakage. Ensuring stable and safe cutting processes necessitates the prediction of chatter by considering the tool breakage. Crucially, the modal parameters of the spindle–holder–tool system are important prerequisites for such stability prediction. In this paper, the FRFs of the micro-milling tool are calculated by direct frequency response functions (FRFs) of the micro-milling cutter and cross-FRFs between a point on the shank and one on the tool tip. Additionally, by utilizing a cutting force model specific to micro-milling, the bending stress experienced by the tool is computed, and the tool breakage curve is subsequently determined based on the material’s permissible maximum allowable stress. The FRFs of the micro-milling tool, alongside the tool breakage curve, are then integrated to generate the final stability lobe diagrams (SLDs). The effectiveness and reliability of the proposed methodology are confirmed through a comprehensive series of numerical and experimental validations.","PeriodicalId":509245,"journal":{"name":"Journal of Manufacturing and Materials Processing","volume":"72 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141357928","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

Effects of Oil Concentration in Flood Cooling on Cutting Force, Tool Wear and Surface Roughness in GTD-111 Nickel-Based Superalloy Slot Milling 洪流冷却中的油浓度对 GTD-111 镍基超合金槽铣加工中切削力、刀具磨损和表面粗糙度的影响

Journal of Manufacturing and Materials Processing Pub Date : 2024-06-07 DOI: 10.3390/jmmp8030119

Gábor Kónya, Zsolt F. Kovács

{"title":"Effects of Oil Concentration in Flood Cooling on Cutting Force, Tool Wear and Surface Roughness in GTD-111 Nickel-Based Superalloy Slot Milling","authors":"Gábor Kónya, Zsolt F. Kovács","doi":"10.3390/jmmp8030119","DOIUrl":"https://doi.org/10.3390/jmmp8030119","url":null,"abstract":"Cooling–lubricating processes have a big impact on cutting force, tool wear, and the quality of the machined surface, especially for hard-to-machine superalloys, so the choice of the right cooling–lubricating method is of great importance. Nickel-based superalloys are among the most difficult materials to machine due to their high hot strength, work hardening, and extremely low thermal conductivity. Previous research has shown that flood cooling results in the least tool wear and cutting force among different cooling–lubricating methods. Thus, the effects of the flood oil concentration (3%; 6%; 9%; 12%; and 15%) on the above-mentioned factors were investigated during the slot milling of the GTD-111 nickel-based superalloy. The cutting force was measured during machining with a Kistler three-component dynamometer, and then after cutting the tool wear and the surface roughness on the bottom surface of the milled slots were measured with a confocal microscope and tactile roughness tester. The results show that at a 12% oil concentration, the tool load and tool wear are the lowest; even at an oil concentration of 15%, a slight increase is observed in both factors. Essentially, a higher oil concentration reduces friction between the tool and the workpiece contact surface, resulting in reduced tool wear and cutting force. Furthermore, due to less friction, the heat generation in the cutting zone is also reduced, resulting in a lower heat load on the tool, which increases tool life. It is interesting to note that the 6% oil concentration had the highest cutting force and tool wear, and strong vibration was heard during machining, which is also reflected in the force signal. The change in oil concentration did not effect the surface roughness.","PeriodicalId":509245,"journal":{"name":"Journal of Manufacturing and Materials Processing","volume":" 38","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141372409","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

Theoretical Assessment of the Environmental Impact of the Preheating Stage in Thermoplastic Composite Processing: A Step toward Sustainable Manufacturing 热塑性复合材料加工过程中预热阶段对环境影响的理论评估：迈向可持续制造的一步

Journal of Manufacturing and Materials Processing Pub Date : 2024-06-07 DOI: 10.3390/jmmp8030120

Abbas Hosseini

{"title":"Theoretical Assessment of the Environmental Impact of the Preheating Stage in Thermoplastic Composite Processing: A Step toward Sustainable Manufacturing","authors":"Abbas Hosseini","doi":"10.3390/jmmp8030120","DOIUrl":"https://doi.org/10.3390/jmmp8030120","url":null,"abstract":"Manufacturing processes have always played a pivotal role in the life cycle assessment of products, necessitating focused efforts to minimize their impact on the environment. Thermoplastic composite manufacturing is no exception to this concern. Within thermoplastic composite manufacturing, the preheating process stands out as one of the most energy-intensive stages, significantly affecting the environment. In this study, a theoretical analysis is conducted to compare three modes of preheating: conductive, radiative, and convective modes, considering their energy consumption and environmental impact. The analysis reveals the potential for substantial energy savings and emissions reduction through the selection of a proper preheating mode. Since the analysis used in this study is theoretical, it facilitates a parametric study of different modes of preheating to assess how process parameters impact the environment. Moreover, this study includes a comparison between emissions from material production and the preheating process, highlighting the substantial contribution of the preheating process to the overall product life cycle assessment.","PeriodicalId":509245,"journal":{"name":"Journal of Manufacturing and Materials Processing","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141371644","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

Application of Microwave Energy to Biomass: A Comprehensive Review of Microwave-Assisted Technologies, Optimization Parameters, and the Strengths and Weaknesses 微波能在生物质中的应用：微波辅助技术、优化参数及优缺点综述

Journal of Manufacturing and Materials Processing Pub Date : 2024-06-07 DOI: 10.3390/jmmp8030121

Alejandra Sophia Lozano Pérez, Juan Jose Lozada Castro, Carlos Alberto Guerrero Fajardo

引用次数: 0

Additive In-Time Manufacturing of Customised Orthoses 定制矫形器的实时快速制造

Journal of Manufacturing and Materials Processing Pub Date : 2024-03-21 DOI: 10.3390/jmmp8020063

Christian Friedrich, Stephan Rothstock, Laura Slabon, Steffen Ihlenfeldt

{"title":"Additive In-Time Manufacturing of Customised Orthoses","authors":"Christian Friedrich, Stephan Rothstock, Laura Slabon, Steffen Ihlenfeldt","doi":"10.3390/jmmp8020063","DOIUrl":"https://doi.org/10.3390/jmmp8020063","url":null,"abstract":"Additive manufacturing of plastic components in medical technology enables greater freedom of design when designing patient-specific products, in particular, in production of customised medical products, such as orthoses. In the present contribution, the advantages of a digital process chain are combined, from the 3D scan of the patient to CAD-supported modelling of the corrective form and the orthosis design until the path planning of a printable geometry. The main disadvantages of current additive printing techniques, such as the fused filament fabrication (FFF) process, are high printing times (>12 h) for larger components as well as the low degree of freedom in the 2.5D printing technique that prevent the subsequent application of geometry features to the product. The fast SEAMHex (Screw Extrusion Additive Manufacturing) printing technology with a hexapod kinematic printing bed provides a solution to the mentioned difficulties. Consequently, the high-performance printer has been prepared for the individual requirements of medical technology in terms of materials and geometries. An effective additive manufacturing process has been realised and tested in combination with a digital process chain for orthosis modelling.","PeriodicalId":509245,"journal":{"name":"Journal of Manufacturing and Materials Processing","volume":" 35","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140220911","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

Biomass Fuel Characteristics of Malaysian Khaya senegalensis Wood-Derived Energy Pellets: Effects of Densification at Varied Processing Temperatures 马来西亚红木衍生能源颗粒的生物质燃料特性：不同加工温度下致密化的影响

Journal of Manufacturing and Materials Processing Pub Date : 2024-03-20 DOI: 10.3390/jmmp8020062

R. I. Ismail, Chu Yee Khor, Alina Rahayu Mohamed

{"title":"Biomass Fuel Characteristics of Malaysian Khaya senegalensis Wood-Derived Energy Pellets: Effects of Densification at Varied Processing Temperatures","authors":"R. I. Ismail, Chu Yee Khor, Alina Rahayu Mohamed","doi":"10.3390/jmmp8020062","DOIUrl":"https://doi.org/10.3390/jmmp8020062","url":null,"abstract":"This study addresses the effects of densification at varied pelletization temperatures on the novel Malaysian Khaya senegalensis wood-derived pellets biomass fuel characteristics. The lack of comprehensive understanding regarding the biomass fuel characteristics of this species prompted the research. By addressing this knowledge gap, this study explores the impact of temperature variations on key fuel properties, contributing to the optimization of sustainable biomass fuel production in manufacturing and materials processing. Khaya senegalensis wood, grown and harvested in Malaysia, was pelletized at different temperatures to analyze the calorific value, volatile matter content, ash content, fixed carbon, bulk density, and moisture contents of the pellets. The experimental data revealed a significant relationship between temperature and these fuel properties. Pelletizing at 75 °C produced the highest calorific value of 19.47 MJ/kg and the maximum fixed carbon content of 10.04%. A low ash level of 4.26% was achieved via pelletizing at 75 °C. According to the results, 75 °C produced the best thermophysical properties. These findings provide valuable understanding of how pelletization temperature influences fuel pellet thermophysical properties, a critical aspect in optimizing fuel pellet production, storage, advancing renewable energy resource utilization, and, finally, promoting a cleaner and more sustainable energy future.","PeriodicalId":509245,"journal":{"name":"Journal of Manufacturing and Materials Processing","volume":"88 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140224937","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

Optimization of Surface Roughness of Aluminium RSA 443 in Diamond Tool Turning 优化金刚石刀具车削 RSA 443 铝的表面粗糙度

Journal of Manufacturing and Materials Processing Pub Date : 2024-03-19 DOI: 10.3390/jmmp8020061

Gregoire Mbangu Tambwe, Dirk J. Pons

{"title":"Optimization of Surface Roughness of Aluminium RSA 443 in Diamond Tool Turning","authors":"Gregoire Mbangu Tambwe, Dirk J. Pons","doi":"10.3390/jmmp8020061","DOIUrl":"https://doi.org/10.3390/jmmp8020061","url":null,"abstract":"Context—Rapidly solidified aluminium alloy (RSA 443) is increasingly used in the manufacturing of optical mold inserts because of its fine nanostructure, relatively low cost, excellent thermal properties, and high hardness. However, RSA 443 is challenging for single-point diamond machining because the high silicon content mitigates against good surface finishes. Objectives—The objectives were to investigate multiple different ways to optimize the process parameters for optimal surface roughness on diamond-turned aluminium alloy RSA 443. The response surface equation was used as input to three different artificial intelligence tools, namely genetic algorithm (GA), particle swarm optimization (PSO), and differential evolution (DE), which were then compared. Results—The surface roughness machinability of RSA443 in single-point diamond turning was primarily determined by cutting speed, and secondly, cutting feed rate, with cutting depth being less important. The optimal conditions for the best surface finish Ra = 14.02 nm were found to be at the maximum rotational speed of 3000 rpm, cutting feed rate of 4.84 mm/min, and depth of cut of 14.52 µm with optimizing error of 3.2%. Regarding optimization techniques, the genetic algorithm performed best, then differential evolution, and finally particle swarm optimization. Originality—The study determines optimal diamond machining parameters for RSA 443, and identifies the superiority of GA above PSO and DE as optimization methods. The principles have the potential to be applied to other materials (e.g., in the RSA family) and machining processes (e.g., turning, milling).","PeriodicalId":509245,"journal":{"name":"Journal of Manufacturing and Materials Processing","volume":"67 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140228999","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