Rui F.V. Sampaio , João P.M. Pragana , Ivo M.F. Bragança , Carlos M.A. Silva , Paulo A.F. Martins
{"title":"A strain acceleration method to identify the onset of diffuse necking","authors":"Rui F.V. Sampaio , João P.M. Pragana , Ivo M.F. Bragança , Carlos M.A. Silva , Paulo A.F. Martins","doi":"10.1016/j.aime.2024.100148","DOIUrl":"10.1016/j.aime.2024.100148","url":null,"abstract":"<div><p>This paper presents an innovative ‘strain acceleration method’ for determining the onset of diffuse necking in sheet forming tests using data obtained from digital image correlation (DIC). The method identifies the onset time of diffuse necking and provides the corresponding in-plane principal strain values by detecting a local extreme in the second derivative of the minor principal in-plane strain with respect to time at the edges of the sheet surface region where diffuse necking occurs. Results obtained from applying the method to tensile testing on two different materials and comparisons with available methods based on force-time or principal strain rate evolutions confirm its accuracy and validity. The new method was implemented in a computer software to be used for research and education that also enables determination of localized necking and fracture and plotting the strain loading paths in principal strain space.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"9 ","pages":"Article 100148"},"PeriodicalIF":3.9,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000138/pdfft?md5=05a7a126b23a33d6522153ff66697659&pid=1-s2.0-S2666912924000138-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141961190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tero Kaarlela , Tero Niemi , Tomi Pitkäaho , Jari Harjula
{"title":"Retrofitting enables sustainability, Industry 4.0 connectivity, and improved usability","authors":"Tero Kaarlela , Tero Niemi , Tomi Pitkäaho , Jari Harjula","doi":"10.1016/j.aime.2024.100146","DOIUrl":"https://doi.org/10.1016/j.aime.2024.100146","url":null,"abstract":"<div><p>Retrofitting is a sustainable approach to improving the capabilities and extending the life of aging machine tools. Reusing the mechanical construction and replacing only the control electronics and software is a viable option to upgrade an aging machine tool to a cutting-edge level. During the last decades, the evolution of machine tools has focused on developing computer numerical control (CNC) rather than on mechanical construction. Retrofitting the CNC enables Industry 4.0 connectivity and improved usability sustainably, preserving finite raw material resources and reducing carbon emissions created during the casting process of heavy blank parts for physically large machine tools.</p><p>This publication presents methods to retrofit machine tools using open-source CNC software and a feasibility study after seven years of operation. Our study highlights retrofitting as more profitable than repairing an aging CNC and compares the sustainability of retrofitting or replacing the aging machine tool with a new unit. In conclusion, retrofitting enables sustainability, connectivity, and accuracy comparable to modern machine tools. Retrofitting also paves the way for using artificial intelligence to monitor and adapt to tool wear, chatter, and surface roughness.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"9 ","pages":"Article 100146"},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000114/pdfft?md5=19e6b3c67119ec1343a8efb47ff495cb&pid=1-s2.0-S2666912924000114-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141298163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A simulated annealing metaheuristic approach to hybrid flow shop scheduling problem","authors":"Mohamed Karim Hajji , Oumayma Hamlaoui , Hatem Hadda","doi":"10.1016/j.aime.2024.100144","DOIUrl":"10.1016/j.aime.2024.100144","url":null,"abstract":"<div><p>This study investigates a complex hybrid flow shop scheduling problem prevalent in the industrial sector, characterized by dedicated machines, availability dates, and delivery times. The primary objective is to minimize the total completion time (makespan) in a two-stage workshop setting. We conducted a comprehensive literature review, revealing a scarcity of research on this specific configuration, and employed the Simulated Annealing metaheuristic as our main resolution method. Special emphasis was placed on the meticulous parameterization and configuration of this metaheuristic, crucial for navigating the complexity of the problem.</p><p>Our findings demonstrate the remarkable effectiveness of the Simulated Annealing method, particularly in achieving low deviation from the lower bound in larger problem sizes and specific instance classes. This consistency highlights the method’s robustness and suitability for complex scheduling scenarios. The study also reveals varying degrees of problem solvability across different instance classes, with computation times generally reasonable except in more challenging scenarios.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"9 ","pages":"Article 100144"},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000096/pdfft?md5=568d8b28e0aa6aad12d2b5e6b96f31cc&pid=1-s2.0-S2666912924000096-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141279797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hydro-assisted incremental forming (HAIF): A formability-enhanced incremental forming process; presenting an experimental method for determination of forming limits with generalized non-planar stress state","authors":"Afshin Fatemi, Bijan Mollaei Dariani","doi":"10.1016/j.aime.2024.100143","DOIUrl":"10.1016/j.aime.2024.100143","url":null,"abstract":"<div><p>Hydro-assisted incremental forming (HAIF) as a hybrid process of incremental forming and hydromechanical deep drawing with enhanced formability resulted of simultaneous exertion of normal and through thickness stresses is introduced in this paper. Based on this process, a test method is invented for experimental and finite element assessment of forming limits under generalized non-planar stress state. Previous analytical forming limit curves predicted by the present authors are evaluated using experimental tests and finite element simulations and good compatibility is observed. It is again confirmed that application of normal and through thickness stresses enhance formability in all strain paths specially in plane strain mode.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"9 ","pages":"Article 100143"},"PeriodicalIF":0.0,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000084/pdfft?md5=f94d73b702c1cd14626da7854b21c90b&pid=1-s2.0-S2666912924000084-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141136399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rui F.V. Sampaio , João P.M. Pragana , Ivo M.F. Bragança , Carlos M.A. Silva , Paulo A.F. Martins
{"title":"Introducing a novel sheet test specimen for biaxial stretching under uniaxial loading","authors":"Rui F.V. Sampaio , João P.M. Pragana , Ivo M.F. Bragança , Carlos M.A. Silva , Paulo A.F. Martins","doi":"10.1016/j.aime.2024.100141","DOIUrl":"https://doi.org/10.1016/j.aime.2024.100141","url":null,"abstract":"<div><p>This paper introduces a novel sheet test specimen that plastically deforms under biaxial stretching when subjected to uniaxial loading in conventional testing machines. The specimen was designed using finite element simulation and consists of a two-dimensional reticular structure with interconnected arms in the form of triangles that converge at the center and are connected to full-width sheets at the specimen's ends. Accumulation of damage at the center is ensured through spherical cups that are milled at opposite sheet surfaces. Experimental strain loading paths obtained by digital image correlation confirm the capability of the novel sheet test specimen to provide biaxial stretching strain paths. This is achieved under friction-independent conditions and without requiring complicated multiaxial setups and machines, provided appropriate values of the inner and outer angles of the interconnected arms are used.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"8 ","pages":"Article 100141"},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000060/pdfft?md5=98940409f74ef8374bb314240fca8459&pid=1-s2.0-S2666912924000060-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anna-Maria Schmitt , Eddi Miller , Bastian Engelmann , Rafael Batres , Jan Schmitt
{"title":"G-code evaluation in CNC milling to predict energy consumption through Machine Learning","authors":"Anna-Maria Schmitt , Eddi Miller , Bastian Engelmann , Rafael Batres , Jan Schmitt","doi":"10.1016/j.aime.2024.100140","DOIUrl":"https://doi.org/10.1016/j.aime.2024.100140","url":null,"abstract":"<div><p>Computerized Numeric Control (CNC) plays an essential role in highly autonomous manufacturing systems for interlinked process chains for machine tools. NC-programs are mostly written in standardized G-code. Evaluating CNC-controlled manufacturing processes before their real application is advantageous due to resource efficiency. One dimension is the estimation of the energy demand of a part manufactured by an NC-program, e.g. to discover optimization potentials. In this context, this paper presents a Machine Learning (ML) approach to assess G-code for CNC-milling processes from the perspective of the energy demand of basic G-commands. We propose Latin Hypercube Sampling as an efficient method of Design of Experiments to train the ML model with minimum experimental effort to avoid costly setup and implementation time of the model training and deployment.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"8 ","pages":"Article 100140"},"PeriodicalIF":0.0,"publicationDate":"2024-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000059/pdfft?md5=37d22a4223506262c227b264ea43e038&pid=1-s2.0-S2666912924000059-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140539216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Philipp Lennemann, Yannis P. Korkolis, A. Erman Tekkaya
{"title":"Influence of changing loading directions on damage in sheet metal forming","authors":"Philipp Lennemann, Yannis P. Korkolis, A. Erman Tekkaya","doi":"10.1016/j.aime.2024.100139","DOIUrl":"https://doi.org/10.1016/j.aime.2024.100139","url":null,"abstract":"<div><p>The impact of the stress state on damage evolution, fracture behavior, and product performance is well understood for proportional loading. However, many complex sheet forming operations involve non-proportional loading, which affect the material's hardening and fracture characteristics. This study investigates the influence of a loading direction change on damage evolution in a dual phase steel DP800. Specimens are pre-strained by tensile tests and subsequently loaded in either the same or orthogonal direction to the initial pre-strain direction by additional tensile tests and bending tests. Damage quantification by scanning electron microscopy reveals lower damage evolution after an orthogonal change of loading direction in contrast to monotonic loading directions. The load paths, defined as a history of triaxiality and Lode parameter during loading, are identified numerically under consideration of kinematic hardening. Since kinematic hardening leads to higher triaxialities after orthogonal changes, the load path is not the dominant influence on damage. A possible explanation for the experimental results is the void characteristics after tensile load. After the pre-straining in tensile test, voids are oriented orthogonally to the tensile direction and located between hard martensitic phases. The influence of this morphology on subsequent void growth is illustrated by a simulation verifying that an orthogonal change of loading direction results in void shrinkage, while monotonic loading directions lead to further void growth.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"8 ","pages":"Article 100139"},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000047/pdfft?md5=4432d5fcfd820add5cec954fcb393ee3&pid=1-s2.0-S2666912924000047-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140181241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Belodedenko , O. Hrechanyі , V. Hanush , Y. Izhevskyi
{"title":"Experimental and analytical ways of finding the function of the maximum accumulated damage under operating modes with overloads","authors":"S. Belodedenko , O. Hrechanyі , V. Hanush , Y. Izhevskyi","doi":"10.1016/j.aime.2024.100137","DOIUrl":"https://doi.org/10.1016/j.aime.2024.100137","url":null,"abstract":"<div><p>The problem of overloading was characterized as a factor of load history in the modern resource assessment methodology. The signs by which a loading cycle can be considered an overload were defined. A correlation was obtained between the failure mechanics approach and the damage accumulation approach to survivability prediction. An experimental and analytical method of its adjustment has been developed based on the regularities of the impact of loads on the accumulated damage. Its use in obtaining models of damage accumulation in 40Cr and 35CrMnSi steels was shown. New experimental data were obtained on the behavior of the accumulated damage function in the stress localization zones during bending, and an explanation of its non-monotonicity under the influence of operational factors was found.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"8 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000023/pdfft?md5=4bbfeecbcc4d52cc4da8642cdf268e02&pid=1-s2.0-S2666912924000023-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139738215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Taguchi DoE analysis and characterization of 17-4 PH stainless steel parts produced by material extrusion (MEX) process","authors":"Mahmoud Naim , Mahdi Chemkhi , Julien Kauffmann , Akram Alhussein","doi":"10.1016/j.aime.2024.100138","DOIUrl":"https://doi.org/10.1016/j.aime.2024.100138","url":null,"abstract":"<div><p>Material extrusion (MEX) of metallic components is an indirect additive manufacturing (AM) process that is recently gaining a lot of attention in the industry. This multi-step process with debinding and sintering, provides an inexpensive safe alternative, that is effective, flexible and office-friendly for several corporations compared to other metal AM techniques. However, optimizing the manufacturing parameters of the MEX process is still challenging due to the lack of research on their impact on the mechanical and surface properties of the fabricated materials.</p><p>For this purpose, this paper investigates how various processing parameters impact the mechanical properties and surface roughness of 17-4 PH stainless steel parts produced by MEX. The parameters analyzed include layer thickness, build orientation, number of contours, and aging thermal treatment for 1 h at <span><math><mrow><mn>482</mn><mspace></mspace><mo>°C</mo></mrow></math></span> (H900). A Taguchi design of experiments (DoE) was employed to conduct the parametric analysis and the results were post-evaluated via the analysis of variance (ANOVA). The experimental results show that H900 treatment increases the micro-hardness by ∼50 HV<sub>0.3</sub> and contributes in augmenting the ultimate tensile strength (UTS) by ∼200 MPa. The build orientation and its interaction with the layer thickness have the highest impact on the surface roughness. Moreover, the amount of enclosed porosity is higher in the samples with lower layer thickness. The absorbed impact energy (<span><math><mrow><msub><mi>W</mi><mrow><mi>a</mi><mi>b</mi><mi>s</mi></mrow></msub></mrow></math></span>) is relatively low due to the enclosed porosity content and is not linked to the analyzed processing parameters. The best mechanical properties were obtained for parts built with solid infills, 0° build orientation, 0.125 mm layer thickness, two contours, and H900 as a post-treatment.</p></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"8 ","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2024-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666912924000035/pdfft?md5=867c532b0482518223c98880d8478fba&pid=1-s2.0-S2666912924000035-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139726782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}