International Journal of Material Forming最新文献_第5页

Determination of the onset of yielding and the Young’s modulus after a change in the loading direction 确定加载方向改变后的屈服起始点和杨氏模量

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-03-19 DOI: 10.1007/s12289-024-01823-1

Roman Norz, Simon Vitzthum, Maximilian Gruber, Lorenz Maier, Joana Rebelo Kornmeier, Emad Maawad, Fabuer R. Valencia, Steffen Gerke, Michael Brünig, Wolfram Volk

{"title":"Determination of the onset of yielding and the Young’s modulus after a change in the loading direction","authors":"Roman Norz, Simon Vitzthum, Maximilian Gruber, Lorenz Maier, Joana Rebelo Kornmeier, Emad Maawad, Fabuer R. Valencia, Steffen Gerke, Michael Brünig, Wolfram Volk","doi":"10.1007/s12289-024-01823-1","DOIUrl":"10.1007/s12289-024-01823-1","url":null,"abstract":"<div><p>The onset of plastic deformation is an important parameter for an accurate description of the flow curve and the Young’s modulus. Determining the actual physical start of flow is already experimentally challenging for classic sheet metal materials. In addition to the experimental challenge, the onset of flow depends on numerous parameters such as strain rate, temperature and forming history. Non-proportional load paths in particular can significantly influence the onset of flow. Three different materials, a micro-alloyed steel HC340LA, a dual-phase steel CR330Y590-DP and an aluminium alloy AA6016-T4 are investigated in this publication. The physical onset of flow of the materials is determined at three different pre-strain levels as well as without and with a change in the load direction. Temperature-based approaches are used for this purpose. In-situ synchrotron diffraction is used to validate the results obtained. Those results can help to improve existing material models and springback prediction. Such models rely on material parameters that are as accurate as possible.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-024-01823-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140170929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anisotropic plasticity deformation during micro-deep drawing of 304 foils: An experimental and numerical investigation 304 薄膜微拉伸过程中的各向异性塑性变形：实验和数值研究

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-03-15 DOI: 10.1007/s12289-024-01822-2

Lei Shang, Suxia Huang, Jianhua Hu, Hezong Li, Yong Pang

引用次数: 0

Novel finite element model of analyzing wall thickness during tube drawing considering raw tube’s thickness non-uniformity and die misalignment 考虑原管厚度不均匀和模具偏差的管材拉拔过程中壁厚分析的新型有限元模型

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-03-06 DOI: 10.1007/s12289-024-01813-3

N. A. Razali, J. B. Byun, M. S. Joun

引用次数: 0

Correction: Rapid multi-material joining via flow drill screw process: experiment and FE analysis using the coupled Eulerian‒Lagrangian method 更正：通过流动钻螺工艺实现多材料快速连接：使用欧拉-拉格朗日耦合方法进行实验和 FE 分析

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-03-06 DOI: 10.1007/s12289-024-01821-3

Minki Kim, Sungho Kim, Namsu Park

引用次数: 0

Laser metal deposition of titanium on stainless steel with high powder flowrate for high interfacial strength 以高粉末流动率在不锈钢上激光金属沉积钛，实现高界面强度

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-03-04 DOI: 10.1007/s12289-024-01820-4

Di Cui, Akash Aggarwal, Marc Leparoux

{"title":"Laser metal deposition of titanium on stainless steel with high powder flowrate for high interfacial strength","authors":"Di Cui, Akash Aggarwal, Marc Leparoux","doi":"10.1007/s12289-024-01820-4","DOIUrl":"10.1007/s12289-024-01820-4","url":null,"abstract":"<div><p>Direct joining of titanium and stainless steel 316 L with a strong interface is very challenging due to the formation of the brittle intermetallic compounds FeTi and Fe<sub>2</sub>Ti in the intermixing zones and to the high residual stress induced by the mismatch of the thermal expansion coefficients. In this bimetallic directed energy deposition study, firstly, deposition of Ti on stainless steel was carried out using conventional process parameter regime to understand the interfacial cracking susceptibility and then a novel high powder flowrate approach is proposed for controlling the dilution and constraining the intermetallic phases forming at the interface. The influence of high temperature substrate preheating (520 °C) on the cracking susceptibility and interface strength was also investigated. The deposited Ti samples and their interfaces with the 316 L substrate were characterized with optical microscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy to investigate the geometry, microstructures and chemical compositions in relation to the cracks. The high powder flowrate deposition of Ti on stainless steel 316 L results in an extremely thin dilution region (~ 10 μm melt pool depth in the substrate) restricting the formation of the intermetallic phases and cracks. The ultimate shear strength of the interfaces of the crack free sample was measured from cuboid deposits and the highest measured strength is 381 ± 24 MPa, exceeding the weaker base material pure Ti. The high interfacial strength for high powder flowrate deposition is due to the substantial attenuation and shadowing of the laser beam by the in-flight powder stream as demonstrated by the high-speed imaging resulting in an extremely small dilution region.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-024-01820-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140025563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Model validation of hollow embossing rolling for bipolar plate forming 用于双极板成型的空心压花轧制的模型验证

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-01-24 DOI: 10.1007/s12289-023-01804-w

Franz Reuther, Martin Dix, Verena Kräusel, Verena Psyk, Sebastian Porstmann

{"title":"Model validation of hollow embossing rolling for bipolar plate forming","authors":"Franz Reuther, Martin Dix, Verena Kräusel, Verena Psyk, Sebastian Porstmann","doi":"10.1007/s12289-023-01804-w","DOIUrl":"10.1007/s12289-023-01804-w","url":null,"abstract":"<div><p>Hollow embossing rolling is a promising forming technology for metallic bipolar plates because of the high achievable production rates. However, the simulation-based process optimization is impeded by the incremental forming character and modeling of fine channel structures, which leads to large model sizes and long computation times. This paper presents a shell-based finite element approach validated by experimental forming tests using a miniaturized test geometry with typical discontinuities and varying channel orientations. The rolling experiments demonstrated that implementing restraining tension effectively decreases wrinkling, allowing successful forming of the selected test geometry by hollow embossing rolling. It was found that representing the manufacturing-related decreased rolling gap combined with the rolling gap changes due to roll system elasticity in the numerical model is essential for model accuracy. An optimized model approach with spring-controlled rollers was developed, which considers the effect of load-dependent rolling gap changes. With this approach the applied model achieves sufficient model accuracy for technological process simulation and optimization.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-023-01804-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139552930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Casting hybrid twin: physics-based reduced order models enriched with data-driven models enabling the highest accuracy in real-time 铸造混合孪生：基于物理的减阶模型与数据驱动模型相辅相成，可实时实现最高精度

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-01-23 DOI: 10.1007/s12289-024-01812-4

Amine Ammar, Mariem Ben Saada, Elias Cueto, Francisco Chinesta

{"title":"Casting hybrid twin: physics-based reduced order models enriched with data-driven models enabling the highest accuracy in real-time","authors":"Amine Ammar, Mariem Ben Saada, Elias Cueto, Francisco Chinesta","doi":"10.1007/s12289-024-01812-4","DOIUrl":"10.1007/s12289-024-01812-4","url":null,"abstract":"<div><p>Knowing the thermo-mechanical history of a part during its processing is essential to master the final properties of the product. During forming processes, several parameters can affect it. The development of a surrogate model makes it possible to access history in real time without having to resort to a numerical simulation. We restrict ourselves in this study to the cooling phase of the casting process. The thermal problem has been formulated taking into account the metal as well as the mould. Physical constants such as latent heat, conductivities and heat transfer coefficients has been kept constant. The problem has been parametrized by the coolant temperatures in five different cooling channels. To establish the offline model, multiple simulations are performed based on well-chosen combinations of parameters. The space-time solution of the thermal problem has been solved parametrically. In this work we propose a strategy based on the solution decomposition in space, time, and parameter modes. By applying a machine learning strategy, one should be able to produce modes of the parametric space for new sets of parameters. The machine learning strategy uses either random forest or polynomial fitting regressors. The reconstruction of the thermal solution can then be done using those modes obtained from the parametric space, with the same spatial and temporal basis previously established. This rationale is further extended to establish a model for the ignored part of the physics, in order to describe experimental measures. We present a strategy that makes it possible to calculate this ignorance using the same spatio-temporal basis obtained during the implementation of the numerical model, enabling the efficient construction of processing hybrid twins.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139552818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiscale numerical modeling of large-format additive manufacturing processes using carbon fiber reinforced polymer for digital twin applications 针对数字孪生应用的碳纤维增强聚合物大型增材制造工艺的多尺度数值建模

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-01-15 DOI: 10.1007/s12289-024-01811-5

Pablo Castelló-Pedrero, César García-Gascón, Juan A. García-Manrique

{"title":"Multiscale numerical modeling of large-format additive manufacturing processes using carbon fiber reinforced polymer for digital twin applications","authors":"Pablo Castelló-Pedrero, César García-Gascón, Juan A. García-Manrique","doi":"10.1007/s12289-024-01811-5","DOIUrl":"10.1007/s12289-024-01811-5","url":null,"abstract":"<div><p>Large Format Additive Manufacturing (LFAM) has gained prominence in the aerospace and automotive industries, where topology optimization has become crucial. LFAM facilitates the layer-by-layer production of sizeable industrial components in carbon fiber (CF) reinforced polymers, however 3D printing at large scales results in warpage generation. Printed components are deformed as residual stresses generated due to thermal gradients between adjacent layers. This paper tackles the problem at two different scales: the micro and macroscale. Initially, the microstructure characterization of the thermoplastic ABS matrix composite material enriched with 20% short CF is used in the development of numerical models to understand the mechanical behavior of the studied material. Numerical modeling is performed simultaneously by means of Mean-Field (MF) homogenization methods and Finite Element Analysis (FEA). Outcomes validated with corrected experimental mechanical testing results show a discrepancy in the elastic modulus of 7.8% with respect to FE multi-layer analysis. Micro-level results are coupled with the a macroscopic approach to reproduce the LFAM process, demonstrating the feasibility of the tool in the development of a Digital Twin (DT).</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-024-01811-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139483660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: High-reduction radial shear rolling of aluminum alloy bars using custom-calibrated rolls 更正：使用定制校准轧辊对铝合金棒材进行高还原径向剪切轧制

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-01-15 DOI: 10.1007/s12289-024-01810-6

Yu V. Gamin, S. P. Galkin, A. N. Koshmin, A. Mahmoud Alhaj Ali, X. D. Nguyen, I. S. ELDeeb

引用次数: 0

Effect of die misalignment on the joining quality of Al/steel self-piercing riveting structure 模具偏差对铝/钢自冲铆接结构连接质量的影响

IF 2.6 3区材料科学

International Journal of Material Forming Pub Date : 2024-01-15 DOI: 10.1007/s12289-023-01809-5

Yuxuan Liao, Jun Zhang, Gusheng Wu, Guangyao Li, Junjia Cui, Hao Jiang

{"title":"Effect of die misalignment on the joining quality of Al/steel self-piercing riveting structure","authors":"Yuxuan Liao, Jun Zhang, Gusheng Wu, Guangyao Li, Junjia Cui, Hao Jiang","doi":"10.1007/s12289-023-01809-5","DOIUrl":"10.1007/s12289-023-01809-5","url":null,"abstract":"<div><p>Self-piercing riveting (SPR) is one of the advanced mechanical joining techniques, and it has been widely used in automobile industry. In this paper, the effect of die misalignment on the cross-section parameters and mechanical properties of SPR joints were respectively studied through numerical simulation and experiment, and the mechanical properties degradation mechanism of the misaligned riveted joint were analyzed. A three-dimensional explicit finite element model (FEM) of SPR joint was developed by ABAQUS, and the section observation was performed to evaluate the accuracy of FEM. The riveting process and the strain of SPR joints with different misalignment distance was analyzed, and the quasi-static shear test was carried out. The results revealed that the rivet leg near the die edge was thickened due to limitations in deformation space, and a cavity was formed at the outer edge of the rivet leg near the die center, during the riveting process. It resulted in different cross-section parameters and mechanical properties of SPR joints. Specifically, the interlock distance decreased as the misalignment distance increased. The bottom thickness of the side near the die edge increased with increasing misalignment distance, while that near the die center decreased slightly as the misalignment distance increased. In addition, the maximum shear load decreased nonlinearly with increasing misalignment distance, and the movement of die along the loading end had a significantly greater impact on the maximum shear load than the movement along the fixed end. This was mainly because the interlock distance of SPR joints was asymmetrically and nonlinearly reduced due to the die misalignment.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139475262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0