Manufacturing Review最新文献_第7页

Residual stress effects on fatigue crack propagation in Butt–Welded joints for 304 stainless steel sheets 残余应力对304不锈钢板对接接头疲劳裂纹扩展的影响

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/mfreview/2021017

Eman El Shrief, A. El-Megharbel, Aly El Domiaty, H. Abd El-Hafez

{"title":"Residual stress effects on fatigue crack propagation in Butt–Welded joints for 304 stainless steel sheets","authors":"Eman El Shrief, A. El-Megharbel, Aly El Domiaty, H. Abd El-Hafez","doi":"10.1051/mfreview/2021017","DOIUrl":"https://doi.org/10.1051/mfreview/2021017","url":null,"abstract":"Welded joints are sensitive to fatigue failure due to cyclic loading, as well as fatigue crack propagation influenced by the distribution of welding residual stress. In this study, the fatigue crack propagation rates in butt-welded joints for 304 stainless steel sheets were evaluated in the presence of welding residual stresses. The analysis consisted of two separate models: first, a 3D-finite element (FE) model was used to predict the residual stresses due to welding; second, a numerical study was undertaken to predict fatigue crack propagation in the presence and absence of residual stress using the extended finite element method (XFEM). The crack growth model (NASGRO) and available experimental data were applied to verify the simulation results. The XFEM without residual stress effects shows good agreement with the experimental data and the NASGRO model. However, in the presence of residual stress, the simulation results show less agreement with the NASGRO model. The level and the nature of residual stress have significant effects on crack growth. A faster crack propagation rate is recognized due to the effect of tensile residual stress at the crack tip, while a higher resistance to crack growth is developed due to a compressive residual stress field.","PeriodicalId":51873,"journal":{"name":"Manufacturing Review","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57964323","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: 1

Spark plasma sintering of CNT-NiAl nanocomposites – Process parameter, densification mechanism, and grain analysis CNT-NiAl纳米复合材料的火花等离子烧结。工艺参数、致密化机制和晶粒分析

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/mfreview/2021023

O. Ayodele, M. Awotunde, B. J. Babalola, P. Olubambi

引用次数: 7

Business model and methods of evaluation in sustainable manufacturing 可持续制造的商业模式与评价方法

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/mfreview/2021026

Haishang Wu

{"title":"Business model and methods of evaluation in sustainable manufacturing","authors":"Haishang Wu","doi":"10.1051/mfreview/2021026","DOIUrl":"https://doi.org/10.1051/mfreview/2021026","url":null,"abstract":"Additive manufacturing (AM) enables cost-effective and efficient production toward sustainability. However, a rigorous evaluation method is required to further investigate the measurement method and efficiency before AM can be well-positioned in sustainable manufacturing and become the industry mainstream. Cost savings play a key role in the manufacturing industry. Compared to conventional manufacturing (CM), the cost of AM is volume-independent. In contrast, CM production requires a certain volume to share the initial tooling costs to achieve cost reduction. This constraint limits CM from service on demand and leaves ambiguity in the threshold setting of that critical batch volume. In addition, the invisibility of AM advantages in cost factors blocks AM technologies from appropriate processes and affects its applications. To address these issues, this paper proposes a business model. The major issues encountered by AM are the scaling, speed, and size of products. The enhancement of cost modeling and addressing speed, scale, and size issues are the novelties of this study and provide a breakthrough in AM issues. Generic equations are derived using the convergence effect and cost–volume intersection calculation between AM and CM. Furthermore, the divide-and-conquer approach is proposed to support scaling factors and dependencies for both AM and CM. Consequently, appropriate AM technologies can be compared with the CM convergence threshold to contribute to decision-making. Next, the advantages and weaknesses of AM are identified, and a collaboration pattern is proposed to connect large enterprises, small-and medium-sized enterprises, and home-based manufacturers into an AM society. Through this society, the advantages of AM can be fully exploited, scaling and speed issues can be addressed, and AM's dominant role in sustainable manufacturing can be made feasible.","PeriodicalId":51873,"journal":{"name":"Manufacturing Review","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57964515","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: 3

Microstructure and magnetic properties of Mn-Al-C permanent magnets produced by various techniques 不同工艺制备的Mn-Al-C永磁体的显微结构和磁性能

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/MFREVIEW/2021008

V. Popov, F. Maccari, I. Radulov, A. Kovalevsky, A. Katz-Demyanetz, M. Bamberger

引用次数: 7

Multi-response optimization in wire electrical discharge machining (WEDM) of D2 steel using utility approach 基于效用法的D2钢线切割加工多响应优化

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/MFREVIEW/2021014

I. Nayak, J. Rana

引用次数: 4

Influence of aluminium content on the microstructure and densification of spark plasma sintered nickel aluminium bronze 铝含量对火花等离子烧结镍铝青铜组织和致密化的影响

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/MFREVIEW/2021006

A. M. Okoro, S. Lephuthing, S. R. Oke, P. Olubambi

{"title":"Influence of aluminium content on the microstructure and densification of spark plasma sintered nickel aluminium bronze","authors":"A. M. Okoro, S. Lephuthing, S. R. Oke, P. Olubambi","doi":"10.1051/MFREVIEW/2021006","DOIUrl":"https://doi.org/10.1051/MFREVIEW/2021006","url":null,"abstract":"In this study, nickel aluminium bronze alloys (NAB) with appreciable densification and improved microhardness was consolidated via spark plasma sintering technique. The NAB alloy was synthesized from starting elemental powders comprised nickel (4 wt.%), aluminium (6, 8 & 10 wt.%) and copper using dry milling technique. Starting powders were homogeneously milled using gentle ball mill for 8 h at a speed of 150 rpm and a BPR of 10:1. Subsequently, the milled powders were consolidated using the spark plasma sintering technique at 750 °C under a compressive pressure of 50 MPa and rate of heating (100 °C/min). Furthermore, the powders and sintered alloys were characterized using SEM and XRD to ascertain the microstructural and phase evolutions during the synthesis of the NAB. The density and microhardness of the alloys were further investigated to ascertain the integrity of the sintered alloys. The results indicated that the increase in aluminium content resulted in the formation of intermetallic and beta phases on the alloy after sintering and the microhardness of the alloys improved with the increase in aluminium content.","PeriodicalId":51873,"journal":{"name":"Manufacturing Review","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57964544","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: 2

Experimental investigation and optimization of wall deflection and material removal rate in milling thin-wall parts 铣削薄壁件壁挠度和材料去除率的实验研究与优化

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/mfreview/2021015

G. Bolar, S. N. Joshi

引用次数: 3

Research on the electric field intensity distribution of high-voltage cable terminal improved by non-linear material 非线性材料改善高压电缆端子电场强度分布的研究

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/mfreview/2021018

Guowei Li, Y. Wang, X. Xu

引用次数: 1

Finite element simulation and regression modeling of machining attributes on turning AISI 304 stainless steel AISI 304不锈钢车削加工属性的有限元仿真与回归建模

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/mfreview/2021022

A. Mathivanan, M. P. Sudeshkumar, R. Ramadoss, C. Ezilarasan, G. Raju, V. Jayaseelan

{"title":"Finite element simulation and regression modeling of machining attributes on turning AISI 304 stainless steel","authors":"A. Mathivanan, M. P. Sudeshkumar, R. Ramadoss, C. Ezilarasan, G. Raju, V. Jayaseelan","doi":"10.1051/mfreview/2021022","DOIUrl":"https://doi.org/10.1051/mfreview/2021022","url":null,"abstract":"To-date, the usage of finite element analysis (FEA) in the area of machining operations has demonstrated to be efficient to investigate the machining processes. The simulated results have been used by tool makers and researchers to optimize the process parameters. As a 3D simulation normally would require more computational time, 2D simulations have been popular choices. In the present article, a Finite Element Model (FEM) using DEFORM 3D is presented, which was used to predict the cutting force, temperature at the insert edge, effective stress during turning of AISI 304 stainless steel. The simulated results were compared with the experimental results. The shear friction factor of 0.6 was found to be best, with strong agreement between the simulated and experimental values. As the cutting speed increased from 125 m/min to 200 m/min, a maximum value of 750 MPa stress as well as a temperature generation of 650 °C at the insert edge have been observed at rather higher feed rate and perhaps a mid level of depth of cut. Furthermore, the Response Surface Methodology (RSM) model is developed to predict the cutting force and temperature at the insert edge.","PeriodicalId":51873,"journal":{"name":"Manufacturing Review","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57964440","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: 3

Experimental analysis of process parameters in drilling nimonic C263 alloy under nano fluid mixed MQL environment 纳米流体混合MQL环境下镍基C263合金钻孔工艺参数的实验分析

IF 2.5

Manufacturing Review Pub Date : 2021-01-01 DOI: 10.1051/MFREVIEW/2020039

C. Ezilarasan, M. Nagaraj, A. J. P. Kumar, A. Velayudham, Rishab Betala

引用次数: 5