International Journal of Material Forming最新文献_第10页

Numerical and experimental analysis of the isothermal high temperature pneumoforming process 等温高温气体成形过程的数值与实验分析

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-07-04 DOI: 10.1007/s12289-023-01767-y

Mike Kamaliev, Jan Flesch, Joshua Grodotzki, A. Erman Tekkaya

{"title":"Numerical and experimental analysis of the isothermal high temperature pneumoforming process","authors":"Mike Kamaliev, Jan Flesch, Joshua Grodotzki, A. Erman Tekkaya","doi":"10.1007/s12289-023-01767-y","DOIUrl":"10.1007/s12289-023-01767-y","url":null,"abstract":"<div><p>The isothermal high temperature pneumoforming process to form tubes at constant elevated temperatures by means of internal pressure is investigated. Two materials, a ferritic (X2CrTiNb18) and a martensitic stainless steel (X12Cr13) are used for the investigations. The required material characterization is performed at the temperature and strain rate of the actual process. A new method for quantifying thermal softening via the time-dependent decrease in static yield stress is presented. At a temperature of 1000 °C, the static yield stress decreases by 50% within 100 s for both materials. The numerical models are validated on the basis of the formed geometry and used to study the influence of maximum internal pressure, axial feed, holding time under load and die edge length on the final part geometry. It was observed, that with higher internal pressures and longer holding times smaller corner radii are formed for both materials. In contrast, a superimposed axial feed as well as the effective friction coefficient have a negligible influence on the formed geometry. With an increasing die edge length, smaller radii are formed with the ferritic stainless steel numerically and experimentally. By contrast, for the martensitic stainless steel, larger radii are observed numerically. Experimentally, the limited formability of these tubes weld seam becomes apparent. Based on the findings, process windows depending on the process parameters internal pressure and die edge length were derived. Numerically, forming limit curves of tubular semi-finished products under comparable conditions serve as a failure criterion. Good agreement with experiments was observed.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-023-01767-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4165230","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

Improving the formability of sandwich sheets by the hydrostatic effect of encapsulated media 利用封装介质的流体静力效应提高夹芯板的成形性

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-07-03 DOI: 10.1007/s12289-023-01768-x

Yuki Shibuya, Jun Yanagimoto

{"title":"Improving the formability of sandwich sheets by the hydrostatic effect of encapsulated media","authors":"Yuki Shibuya, Jun Yanagimoto","doi":"10.1007/s12289-023-01768-x","DOIUrl":"10.1007/s12289-023-01768-x","url":null,"abstract":"<div><p>Various sandwich structures have been developed as lightweight structures. They have excellent specific stiffness owing to their low density. However, owing to the existence of various failure modes, which are classified into core shear failure, tensile fracture of the face sheet, buckling of the face sheet, and delamination, it is difficult to deform sandwich sheets without any failure. A new forming strategy was proposed in this study. Buckling of the face sheet during drawing was suppressed by filling the encapsulated media in a 3D core between the face sheets to exploit its hydrostatic effect. This process is similar to the freeze-bend method, in which the pipe is filled with ice during bending to suppress wrinkles and flattening. Ice, wax, and low-melting alloys were used as the encapsulated media, and their formability and ease of removal were investigated. Further, a shear strength test was performed on the specimens that were cut out from the drawn products to evaluate failure during forming. Based on these experimental results, the characteristics required for the encapsulated media were summarized.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-023-01768-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4126222","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

Selective Laser Melting of Stainless-Steel: A Review of Process, Microstructure, Mechanical Properties and Post-Processing treatments 不锈钢的选择性激光熔化:工艺、显微组织、力学性能和后处理的综述

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-06-30 DOI: 10.1007/s12289-023-01769-w

Thabet A. M. Sghaier, Habib Sahlaoui, Tarek Mabrouki, Haifa Sallem, Joël Rech

{"title":"Selective Laser Melting of Stainless-Steel: A Review of Process, Microstructure, Mechanical Properties and Post-Processing treatments","authors":"Thabet A. M. Sghaier, Habib Sahlaoui, Tarek Mabrouki, Haifa Sallem, Joël Rech","doi":"10.1007/s12289-023-01769-w","DOIUrl":"10.1007/s12289-023-01769-w","url":null,"abstract":"<div><p>Additive Manufacturing (AM) using Selective Laser Melting (SLM) has gained significant prominence across various industries involved in stainless steel part manufacturing. Selective Laser Melting makes it possible to manufacture parts with very complex geometry and with remarkable mechanical and physicochemical properties by controlling the microstructure via the appropriate choice of process parameters. This study presents a comprehensive literature review aiming to provide the scientific and technical communities with an overview of existing knowledge and experimental data regarding the effects of Selective Laser Melting parameters and conditions on the microstructure and mechanical properties of stainless-steel parts. The objective is to highlight the impact of various factors, such as process parameters, building atmosphere, post-heat treatments and initial powder characteristics on phase transformation, porosity and microcracks formation, microstructure evolution and mechanical properties of SLMed stainless steels. Additionally, the integration of emerging Smart Additive Manufacturing (SAM) requires experimental databases, properties prediction and processing parameters optimization to enhance the entire process spanning from design to final product.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5156811","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: 1

Hybrid twin of RTM process at the scarce data limit 数据稀缺条件下RTM过程的混合孪生

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-06-13 DOI: 10.1007/s12289-023-01747-2

Sebastian Rodriguez, Eric Monteiro, Nazih Mechbal, Marc Rebillat, Francisco Chinesta

{"title":"Hybrid twin of RTM process at the scarce data limit","authors":"Sebastian Rodriguez, Eric Monteiro, Nazih Mechbal, Marc Rebillat, Francisco Chinesta","doi":"10.1007/s12289-023-01747-2","DOIUrl":"10.1007/s12289-023-01747-2","url":null,"abstract":"<div><p>To ensure correct filling in the resin transfer molding (RTM) process, adequate numerical models have to be developed in order to correctly capture its physics, so that this model can be considered for process optimization. However, the complexity of the phenomenon often makes it impossible for numerical models to accurately predict its behavior, limiting its usage. To overcome this limitation, numerical models are enriched with measured data to ensure their correct predictability. Nevertheless, the data used is often limited due to practical constraints, such as a limited number of sensors or the high costs of experimental campaigns. In this context, the present paper demonstrates the implementation of a numerical model enriched with data, called Hybrid Twin applied to the RTM process when few sensors are considered in the mold to be injected. The performances of the developed hybrid twin are tested in a virtual test for the injection of a 2D mold, where the hybrid twin constructed using a simplified numerical model allows to accurately predict a complex model’s resin flow-front over its entire time history.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-023-01747-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4543680","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

Advanced direct extrusion process with real-time controllable extrusion parameters for microstructure optimization of magnesium alloys 先进的直接挤压工艺，实时控制挤压参数，优化镁合金微观组织

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-06-07 DOI: 10.1007/s12289-023-01758-z

Leire Elorza Azpiazu, Aritz Egea, Dietmar Letzig, Changwan Ha

{"title":"Advanced direct extrusion process with real-time controllable extrusion parameters for microstructure optimization of magnesium alloys","authors":"Leire Elorza Azpiazu, Aritz Egea, Dietmar Letzig, Changwan Ha","doi":"10.1007/s12289-023-01758-z","DOIUrl":"10.1007/s12289-023-01758-z","url":null,"abstract":"<div><p>The extrusion speed and deformation temperature are important factors affecting the microstructure development during the deformation. Microstructure development plays a crucial role in the performance of the mechanical properties of materials. In direct extrusion, the homogeneous evolution of the microstructure in the length of the extruded bar could be affected due to its non-isothermal exit temperature evolution. Thus, a new set-up is suggested with real-time controllable speed and temperature to characterize the influence of temperature on the microstructure and obtain its homogeneous development for the magnesium alloy. During the extrusion, the temperature of the extruded bar is evaluated by using the infra-red camera, and the extrusion speed is simultaneously controlled in real-time depending on the temperature difference between a set temperature reference and the one obtained from the infra-red camera. This suggested set-up of extrusion is evaluated in terms of the microstructure and temperature evolution of the extruded bar.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-023-01758-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4305869","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: 1

Inverse identification of constitutive model for metallic thin sheet via electromagnetic hydraulic bulge experiment 基于电磁液压胀形试验的金属薄板本构模型反识别

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-06-05 DOI: 10.1007/s12289-023-01766-z

Tao Cheng, Zhenghua Meng, Wei Liu, Jiaqi Li, Jili Liu, Shangyu Huang

{"title":"Inverse identification of constitutive model for metallic thin sheet via electromagnetic hydraulic bulge experiment","authors":"Tao Cheng, Zhenghua Meng, Wei Liu, Jiaqi Li, Jili Liu, Shangyu Huang","doi":"10.1007/s12289-023-01766-z","DOIUrl":"10.1007/s12289-023-01766-z","url":null,"abstract":"<div><p>During the high-speed forming processes, the metallic sheets are usually deformed under the biaxial tensile condition. The strain rate of metallic sheets often exceeds 10<sup>2</sup> s<sup>− 1</sup>. It is essential to determine the strain-rate-sensitive hardening model of metallic sheets for accurate numerical simulation of the high-speed forming processes. Thus, an electromagnetic hydraulic bulge experiment is proposed to determine the strain-rate-dependent hardening model of metallic sheets under the biaxial tensile condition with the strain rate of 10<sup>2</sup> s<sup>− 1</sup>. It is convenient to numerically simulate the electromagnetic hydraulic bulge processes. Hence, the strain-rate-dependent hardening models of metallic sheets can be determined by the inverse identification procedure of updating the numerical simulation. The electromagnetic hydraulic bulge experiments of SUS304 stainless steel sheet and AA5052-O aluminum alloy sheet were performed for the inverse identification of Johnson-Cook hardening model. The discrepancy between the experimental results and numerical simulation was minimized by optimizing the parameters of strain-rate-dependent hardening models. The dynamic flow stress curves of SUS304 stainless steel sheet and AA5052-O aluminum alloy sheet were higher than the static ones. However, the AA5052-O aluminum alloy sheet exhibits more significant strain-rate hardening effect than the SUS304 stainless steel sheet. The inverse identification of strain-rate-dependent hardening model of metallic sheet was validated by comparing the simulated and experimental results of electromagnetic micro-hydroforming of micro-channel.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4219087","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: 2

Numerical Simulation of Infrared Heating and Ventilation before Stretch Blow Molding of PET Bottles PET瓶拉伸吹塑前红外加热与通风的数值模拟

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-06-02 DOI: 10.1007/s12289-023-01763-2

Thanh Tung Nguyen, Yun-Mei Luo, Luc Chevalier, Alain Baron, François Lesueur, Françoise Utheza

引用次数: 0

Profile defects caused by inhomogeneous longitudinal strain distribution in roll forming 辊压成形中纵向应变分布不均匀引起的型材缺陷

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-06-02 DOI: 10.1007/s12289-023-01762-3

J. Kilz, B. Güngör, F. Aign, P. Groche

{"title":"Profile defects caused by inhomogeneous longitudinal strain distribution in roll forming","authors":"J. Kilz, B. Güngör, F. Aign, P. Groche","doi":"10.1007/s12289-023-01762-3","DOIUrl":"10.1007/s12289-023-01762-3","url":null,"abstract":"<div><p>Roll \u0000forming is a sheet metal forming operation that incrementally forms flat sheets into a desired profile geometry. The process is characterized by a high material utilization and a high output quantity. Concomitant with these advantages, profile defects such as bow and twist of the profile can occur. In the literature, an inhomogeneous longitudinal strain distribution across the profile cross-section is considered to be the cause of these defects. However, a quantitative cause and effect analysis is missing up to now. This paper presents an analytical model that shows a quantitative relationship between profile defects and the underlying longitudinal strain distributions. The model can be used to calculate the longitudinal strain distribution of a roll-formed profile across its cross-section based on given values for bow and twist or vice versa. It is compared with results from simulations and experiments and clearly reveals the cause for twist and bow in roll forming.</p><h3>Graphical abstract</h3>\u0000 <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 </div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-023-01762-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4089262","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

Reshaping of thin steel parts by cold and warm flattening 用冷热压扁法对薄钢件进行整形

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-05-26 DOI: 10.1007/s12289-023-01759-y

Daniele Farioli, Matteo Fabrizio, Ertuğrul Kaya, Matteo Strano, Valerio Mussi

{"title":"Reshaping of thin steel parts by cold and warm flattening","authors":"Daniele Farioli, Matteo Fabrizio, Ertuğrul Kaya, Matteo Strano, Valerio Mussi","doi":"10.1007/s12289-023-01759-y","DOIUrl":"10.1007/s12289-023-01759-y","url":null,"abstract":"<div><p>Approximately half of global steel production is dedicated for manufacturing sheets. Due to global warming, geopolitical instabilities and rising raw material costs, recycling sheet metal is increasingly important. Conventional recycling has inefficiencies, therefore improving material efficiency and adopting circular economy strategies is necessary to halve CO<sub>2</sub> emissions by 2050. This paper presents a review of sheet metal reuse techniques and introduces an innovative remanufacturing framework of curved steel sheet, with a special focus on the automotive sector and car-body panels. To support the framework presented, an experimental procedure on small-scale samples was carried out. The material tested was DC 0.4 steel parts (0.8 mm thick) characterized by different curvature radii. The material was reshaped and flattened under different conditions to understand the effect of the process variables onto the final quality of the remanufactured parts. The experiments showed that even parts with small curvatures can be flattened and reshaped with success. Lastly, to support the general remanufacturing framework presented, some flattening simulations of a large car-body are presented, revealing the importance of implementing a dwelling stage in the process and the advantage of performing such process with heated tools.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-023-01759-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5014236","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

Double-sided self-pierce riveting: rivet geometry optimization 双面自孔铆接:铆钉几何优化

IF 2.4 3区材料科学

International Journal of Material Forming Pub Date : 2023-05-26 DOI: 10.1007/s12289-023-01760-5

Rafael M. Afonso, Luís M. Alves

{"title":"Double-sided self-pierce riveting: rivet geometry optimization","authors":"Rafael M. Afonso, Luís M. Alves","doi":"10.1007/s12289-023-01760-5","DOIUrl":"10.1007/s12289-023-01760-5","url":null,"abstract":"<div><p>Important developments have been achieved for self-pierce riveting with the utilization of a double-sided tubular rivet that is able to join sheets of similar and dissimilar materials with different and larger thicknesses, while remaining hidden in-between the sheets after the joining process is completed. Nevertheless, the performance of those joints can still be improved by an optimization of the rivet parameters, mainly the chamfered angle of the rivet ends and the ratio between the initial height and thickness of the rivet. In this paper, the correct parameter combination is established by the performance of the obtained joint to shear destructive tests, the requirements of force and energy, as well as the dimension of the protuberance produced above the sheets surface. The influence of the introduction of an additional rivet in the overall performance of the mechanical joint is also discussed. Joints of different thinner and thicker sheets are analysed, as well as the combination between those thicknesses, to extend the range of applications of the new joining by forming process.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"16 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12289-023-01760-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5014994","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