Advances in Industrial and Manufacturing Engineering最新文献

Enhancing edge integrity of high-strength steels by high-speed blanking to achieve improved crashworthiness 通过高速下料提高高强度钢的边缘完整性，提高耐撞性

IF 6

Advances in Industrial and Manufacturing Engineering Pub Date : 2026-05-01 Epub Date: 2026-01-30 DOI: 10.1016/j.aime.2026.100181

Olaf Schrage , Roald Lingbeek , Priidu Peetsalu , Marlon Hahn , Hamed Dardaei Joghan , Yannis P. Korkolis , A. Erman Tekkaya

{"title":"Enhancing edge integrity of high-strength steels by high-speed blanking to achieve improved crashworthiness","authors":"Olaf Schrage , Roald Lingbeek , Priidu Peetsalu , Marlon Hahn , Hamed Dardaei Joghan , Yannis P. Korkolis , A. Erman Tekkaya","doi":"10.1016/j.aime.2026.100181","DOIUrl":"10.1016/j.aime.2026.100181","url":null,"abstract":"<div><div>The increasing use of ultra-high-strength steels (UHSS) in automotive safety components is driven by stricter crash safety requirements, vehicle weight reduction, and ecological goals in production and service. The application of UHSS requires adaptations in the manufacturing process chain, as conventional slow-speed blanking (SSB) used in mass production is challenging due to tool wear. Another aspect is crashworthiness: The interaction between material properties and blanking-induced defects—such as surface irregularities, microvoids, and microcracks—promotes crack initiation at free edges and limits edge formability. Local plastic deformation without breakage is a precondition for a stable break load of safety components, wherefore edge stretchability serves as an indicator for crashworthiness. High-speed blanking (HSB) of three steels with ultimate tensile strengths in the range of 1500 MPa—martensitic Docol 1500M, press-hardened (PH) 22MnB5, and carbon steel C60—is examined. Blanking trials are followed by central-hole tensile tests (CHTT) to assess edge stretchability. HSB produces edges with high geometric accuracy and homogeneous fracture surfaces, exhibiting roughness values comparable to wire-eroded surfaces. The shear-affected zone is confined to a narrow band of less than 2% of the sheet thickness, which is four times smaller than those observed in SSB. CHTT results show that HSB edges retain the same load-bearing capacity and edge fracture strain as wire-eroded edges, showing that edge integrity has not been compromised by HSB. In contrast, SSB triggers premature crack initiation reducing the achievable fracture strain by nearly half.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"12 ","pages":"Article 100181"},"PeriodicalIF":6.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187816","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

Towards in-process scrap reduction in aluminum extrusion: A multiscale investigation of charge-weld integrity 在铝挤压过程中减少废料：电荷焊接完整性的多尺度研究

IF 6

Advances in Industrial and Manufacturing Engineering Pub Date : 2026-05-01 Epub Date: 2026-02-06 DOI: 10.1016/j.aime.2026.100183

Eren Can Sariyarlioglu, Torgeir Welo

{"title":"Towards in-process scrap reduction in aluminum extrusion: A multiscale investigation of charge-weld integrity","authors":"Eren Can Sariyarlioglu, Torgeir Welo","doi":"10.1016/j.aime.2026.100183","DOIUrl":"10.1016/j.aime.2026.100183","url":null,"abstract":"<div><div>Charge welds in ‘continuous’ billet-to-billet extrusion processes are commonly associated with substandard material properties, leading to conservative industrial scrap practices. Despite the prevalence of this problem, limited understanding exists regarding governing mechanisms in terms of microstructural and mechanical evolution across the charge-weld zone under real-world processing conditions. This study presents a comprehensive multiscale investigation of charge-weld integrity in hollow AA6082 profiles using a combined experimental and numerical approach. A large number of full-scale industrial extrusion trials were carefully conducted at varying ram speeds, followed by systematic microstructural and mechanical characterizations of the weld zone. The experimental findings reveal a gradual increase in charge-weld strength and ductility along the extruded profile. This is primarily attributed to a reduction in the density and size of oxide-induced grooves and pits at the weld interface between two succeeding billets dispersed into the extruded profile. To understand the governing mechanisms at continuum scale, a finite element model was developed using QForm-Extrusion software. The Kolpak's semi-empirical film theory-based model was incorporated to investigate how thermo-mechanical history and ‘local’ conditions influence charge-weld integrity. The numerical model effectively captured important trends of charge-weld integrity, identifying regions where weld properties progressively recovered to the levels of parent material. Our findings show that a substantial portion of the charge-weld zone provides adequate material integrity, which may call for less conservative scrap standards in industry. Overall, this work advances the fundamental understanding of charge-weld formation, offering a pathway to optimizing material yield towards more efficient manufacturing of aluminum products.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"12 ","pages":"Article 100183"},"PeriodicalIF":6.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187817","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

Data-driven framework for extracting steady-state deformation resistance from transient experimental data without inverse finite element analysis 从瞬态实验数据中提取稳态变形抗力的数据驱动框架，无需反有限元分析

IF 6

Advances in Industrial and Manufacturing Engineering Pub Date : 2026-05-01 Epub Date: 2025-11-28 DOI: 10.1016/j.aime.2025.100177

Eiichi Ota, Minami Fujimura, Yasumoto Sato

{"title":"Data-driven framework for extracting steady-state deformation resistance from transient experimental data without inverse finite element analysis","authors":"Eiichi Ota, Minami Fujimura, Yasumoto Sato","doi":"10.1016/j.aime.2025.100177","DOIUrl":"10.1016/j.aime.2025.100177","url":null,"abstract":"<div><div>Accurate characterization of the steady-state deformation resistance of materials is a prerequisite for high-precision forming simulations. However, controlling the temperature and strain rate in high-temperature tensile experiments is difficult and can hinder data acquisition under ideal isothermal and constant strain-rate conditions. Although the inverse finite element method (iFEM) has been conventionally employed for this purpose, it suffers from limitations such as dependence on constitutive equations, non-uniqueness of solutions, and requirement for expert-level implementation. This study introduces a data-driven framework for extracting steady-state deformation resistance from transient experimental data without using iFEM. The proposed framework acquires transient experimental data, performs regression-based interpolation and optimal model selection, and extracts steady-state responses using regression techniques, which includes a pre-defined material model, artificial neural network, and Gaussian process regression. Two case studies with aluminum and magnesium alloys, each under distinct variable conditions, are conducted to assess validity and scalability. ANN and GPR enhance the prediction accuracy of interpolated values compared to that of the pre-defined material model. This finding validates the feasibility of accurately estimating steady-state deformation resistance through flexible model selection. The plausibility of the predicted responses is supported by visualizing the corresponding response surfaces. The proposed framework provides a flexible, scalable, and practical alternative to conventional iFEM-based approaches with promising future applicability to higher-dimensional scenarios.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"12 ","pages":"Article 100177"},"PeriodicalIF":6.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145624936","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

Parametric assessment of injection dynamics for metal and polymer rapid-tooling using in-line process measurements and modelling of micro-injection moulding 使用在线过程测量和微注射成型建模的金属和聚合物快速成型注射动力学参数评估

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Advances in Industrial and Manufacturing Engineering Pub Date : 2026-05-01 Epub Date: 2025-12-30 DOI: 10.1016/j.aime.2025.100179

Mert Gülçür , Olivia Griffiths , Adam Rich , Xiangyu Gao , Barbara Groh , James Garcia , Luis Arturo Aguirre , Gregory Gibbons , Michael Cullinan

{"title":"Parametric assessment of injection dynamics for metal and polymer rapid-tooling using in-line process measurements and modelling of micro-injection moulding","authors":"Mert Gülçür , Olivia Griffiths , Adam Rich , Xiangyu Gao , Barbara Groh , James Garcia , Luis Arturo Aguirre , Gregory Gibbons , Michael Cullinan","doi":"10.1016/j.aime.2025.100179","DOIUrl":"10.1016/j.aime.2025.100179","url":null,"abstract":"<div><div>Optimising injection dynamics in micro-injection moulding (μIM) enhances efficiency, reduces defects, and improves repeatability. The current study examines the injection dynamics of μIM using both rapid-tooling, fabricated via material jetting, and conventional aluminium metal tooling. A 20 mg micro-moulding cavity was used to assess injection behaviour, injection pressure profiles, and process variation through in-line process monitoring and computational modelling. Results reveal significant differences between rapid and metal tooling in terms of drag, pressure build-up during injection and mechanical properties of the final products. The low thermal conductivity of rapid-tooling has led to prolonged low melt viscosity retention, resulting in significantly reduced peak injection pressures and dampened pressure overshoots, improving process repeatability. Metal tooling in contrast showed increased pressure fluctuations, making the injection dynamics more complex and affecting process repeatability. Computational modelling captured the major trends and exhibited deviations in pressure profiles, particularly for rapid-tooling, where accurate heat transfer coefficient estimation remains a challenge. Mechanical property correlations with injection dynamics further highlight the data-rich nature of μIM, with shear stress effects at higher injection rates influencing part performance. This study provides new insights into μIM process dynamics, emphasising the role of thermal properties and the challenges in modelling heat transfer effects in rapid-tooling. The findings support the optimisation of μIM for improved process control, predictive modelling, and data-driven quality monitoring for both industrial and rapid prototyping settings.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"12 ","pages":"Article 100179"},"PeriodicalIF":6.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925689","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

Beyond necking - Novel characterisation method to investigate the tensile response of sheet metals at elevated temperatures and constant true strain rates 超越颈缩-新颖的表征方法，以研究在高温和恒定的真应变率下金属板的拉伸响应

IF 6

Advances in Industrial and Manufacturing Engineering Pub Date : 2026-05-01 Epub Date: 2026-02-03 DOI: 10.1016/j.aime.2026.100182

David Naumann, Marion Merklein

{"title":"Beyond necking - Novel characterisation method to investigate the tensile response of sheet metals at elevated temperatures and constant true strain rates","authors":"David Naumann, Marion Merklein","doi":"10.1016/j.aime.2026.100182","DOIUrl":"10.1016/j.aime.2026.100182","url":null,"abstract":"<div><div>Characterisation of the strain hardening behaviour for metal forming simulations at elevated temperatures still poses a challenge for state of the art characterisation strategies, where often microstructural changes shall be investigated simultaneously. To do so, GLEEBLE thermo-mechanical simulators are commonly used to conduct physical testing of materials at thermal and mechanical loading at a wide range of loading rates. Such testing systems introduce a known challenge of non-uniform temperature into the specimen which leads to inhomogeneous strain distributions. This heterogeneous strain distribution consequently leads to an uncontrolled forming area together with an undesirable increase of strain rate. To address that challenge, this contribution presents and applied a novel approach to conduct locally controlled tensile tests by utilising a 3D-DIC system for a closed loop strain rate control. The titanium alloy Ti6Al4V with a thickness of 1.5 mm was investigated at temperatures between 600 °C and 900 °C and strain rates between 0.01 s<sup>−1</sup> and 0.1 s<sup>−1</sup>. The novel testing method leads to a change in the analysed flow stress at 600 °C of up to 80 MPa and at 900 °C of up to 65 MPa.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"12 ","pages":"Article 100182"},"PeriodicalIF":6.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187815","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

Joining-by-hydroforming of aluminum and poly(ether ether ketone) – A model experiment 铝与聚醚醚酮的液压成形连接。模型试验

IF 6

Advances in Industrial and Manufacturing Engineering Pub Date : 2026-05-01 Epub Date: 2025-12-30 DOI: 10.1016/j.aime.2025.100180

Florian Weber , Ulrich A. Handge , Tanmoy Rakshit , Hamed Dardaei Joghan , Marlon Hahn , Yannis P. Korkolis , A. Erman Tekkaya

{"title":"Joining-by-hydroforming of aluminum and poly(ether ether ketone) – A model experiment","authors":"Florian Weber , Ulrich A. Handge , Tanmoy Rakshit , Hamed Dardaei Joghan , Marlon Hahn , Yannis P. Korkolis , A. Erman Tekkaya","doi":"10.1016/j.aime.2025.100180","DOIUrl":"10.1016/j.aime.2025.100180","url":null,"abstract":"<div><div>Joining-by-hydroforming is a process in which components are joined through expansion under internal pressure. Depending on the required fluid pressure and application rate, this process can be technically demanding and challenging to implement on industrial equipment. To address this, a simplified experimental setup was developed to investigate the fundamental joining mechanisms. In this setup, aluminum 6061-T6 (AA6061-T6) and poly(ether ether ketone) (PEEK) rings are force-fitted using a conical punch and segmented conical expansion elements, enabling controlled radial expansion. The resulting assemblies are subsequently separated in a dedicated push-out test. Experimental results show that the required separation force increases with rising elastic strain in the polymer, attributable to an increase in contact pressure according to Coulomb's friction law. This effect diminishes once plastic deformation of the thermoplastic initiates. Furthermore, stress relaxation in PEEK causes a time-dependent decrease in joint strength, reaching a quasi-equilibrium after approximately 10<sup>4</sup> s, as confirmed by relaxation experiments on PEEK coupons. To analyze thermal effects, the entire ring assembly is preheated to defined temperatures in a laboratory furnace. An inverse correlation between joining temperature and joint strength is observed, consistent with the trend identified in the dynamic-mechanical-thermal analysis (DMTA) of PEEK.</div><div>The proposed experimental method enables rapid identification of the most influential parameters for joining-by-hydroforming, without requiring dedicated hydroforming equipment or production machine time.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"12 ","pages":"Article 100180"},"PeriodicalIF":6.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925690","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

Novel hybrid bobbin tool friction stir welding of AA2219 with comparison to existing bobbin tool variants AA2219新型混合管刀搅拌摩擦焊及与现有管刀的比较

IF 6

Advances in Industrial and Manufacturing Engineering Pub Date : 2026-05-01 Epub Date: 2026-04-23 DOI: 10.1016/j.aime.2026.100190

Matteo Bernardi , Ting Chen , Mikael Guimaraes , Natã Lucas Beltrão da Silva , Juliano Marks , Guilherme N. Rezende , Pedro Jahn , Gabriela Gonçalves Gerevini , Emad Maawad , Kai Schimanski , Damien Guilloteau , Manuel De Araujo , Marco Pacchione , Luciano Bergmann , Benjamin Klusemann

{"title":"Novel hybrid bobbin tool friction stir welding of AA2219 with comparison to existing bobbin tool variants","authors":"Matteo Bernardi , Ting Chen , Mikael Guimaraes , Natã Lucas Beltrão da Silva , Juliano Marks , Guilherme N. Rezende , Pedro Jahn , Gabriela Gonçalves Gerevini , Emad Maawad , Kai Schimanski , Damien Guilloteau , Manuel De Araujo , Marco Pacchione , Luciano Bergmann , Benjamin Klusemann","doi":"10.1016/j.aime.2026.100190","DOIUrl":"10.1016/j.aime.2026.100190","url":null,"abstract":"<div><div>Bobbin tool friction stir welding (BT-FSW) is a solid-state joining technique that produces high-strength welds without the need for backing plates. This study introduces a new variant, termed hybrid bobbin tool friction stir welding (HBT-FSW), which combines the advantages of conventional BT-FSW and semi-stationary bobbin tool friction stir welding (SSBT-FSW). The HBT-FSW configuration features a probe with a rotating section positioned at the same level as the upper stationary shoulder. This design enhances weld surface quality, while preserving the mechanical performance required for demanding aerospace applications. The process was applied to aluminium alloy AA2219, a common material used in space structures, such as pressurised modules and propellant tanks for orbital systems. A comprehensive microstructural and mechanical characterisation was performed to assess the effectiveness of HBT-FSW. Electron backscatter diffraction (EBSD), hardness mapping, and synchrotron wide-angle X-ray scattering (WAXS) were used to analyse the weld microstructure. Deformation and failure behaviour were investigated through tensile testing with digital image correlation (DIC) and fractographic analysis using scanning electron microscopy (SEM). The results show that HBT-FSW produced a microstructure similar to BT-FSW, achieving comparable tensile strength and ductility while maintaining the superior surface quality typical of SSBT-FSW and enabling welding speeds approximately 30% higher than SSBT-FSW. HBT-FSW therefore represents a promising advancement for the reliable and efficient joining of aluminium alloys in high-performance aerospace structures.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"12 ","pages":"Article 100190"},"PeriodicalIF":6.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147802513","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

Experimental and numerical analysis of compaction of fine powder bed under artificial high gravity for additive manufacturing 增材制造中人工高重力下细粉床压实的实验与数值分析

IF 6

Advances in Industrial and Manufacturing Engineering Pub Date : 2026-05-01 Epub Date: 2025-12-17 DOI: 10.1016/j.aime.2025.100178

Zhazira Berkinova , Assem Sauirbayeva , Almaz Kenzheshov , Boris Golman , Christos Spitas

{"title":"Experimental and numerical analysis of compaction of fine powder bed under artificial high gravity for additive manufacturing","authors":"Zhazira Berkinova , Assem Sauirbayeva , Almaz Kenzheshov , Boris Golman , Christos Spitas","doi":"10.1016/j.aime.2025.100178","DOIUrl":"10.1016/j.aime.2025.100178","url":null,"abstract":"<div><div>Additive manufacturing (AM) has advanced rapidly, expanding its applications across various fields. A key challenge in AM is fabricating fine, high-precision parts, which requires uniform and densely packed powder layers. While fine particles (<20 μm) hold promise for these components, their poor flowability and compactability present significant obstacles. This paper presents an experimental and numerical study on overcoming these limitations through high artificial gravity. Fine Inconel 625 particles immersed in epoxy adhesive were compacted using a lab-scale centrifuge at 1010G, 2030G, and 2810G, and a customized large-scale centrifuge at 71.7G, 101.6G, and 123G. The packing fraction of the green body increased up to 0.52 in the lab-scale centrifuge and up to 0.35 in the customized centrifuge. A validated Discrete Element Method (DEM) model simulated compaction of a fine metal powder bed without epoxy adhesive at various gravitational levels, confirming an 82.8 % improvement in packing fraction, reaching 0.53. Cross-sectional analysis of materials produced by laser melting of fine-particle powder beds without epoxy adhesive revealed substantial voids in samples fabricated under normal gravity. In contrast, samples produced under high artificial gravity (71.7G) exhibited significantly reduced void formation.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"12 ","pages":"Article 100178"},"PeriodicalIF":6.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925688","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

Characterization of sheet formability limits using a novel diagonal-cruciform test specimen 用一种新型的对角-十字形试样表征板材的成形性极限

IF 6

Advances in Industrial and Manufacturing Engineering Pub Date : 2025-11-01 Epub Date: 2025-09-11 DOI: 10.1016/j.aime.2025.100171

Rui F.V. Sampaio , Eduardo B.G. Dias , João M.A. Viegas , João P.M. Pragana , Ivo M.F. Bragança , Carlos M.A. Silva , Paulo A.F. Martins

{"title":"Characterization of sheet formability limits using a novel diagonal-cruciform test specimen","authors":"Rui F.V. Sampaio , Eduardo B.G. Dias , João M.A. Viegas , João P.M. Pragana , Ivo M.F. Bragança , Carlos M.A. Silva , Paulo A.F. Martins","doi":"10.1016/j.aime.2025.100171","DOIUrl":"10.1016/j.aime.2025.100171","url":null,"abstract":"<div><div>This paper introduces an innovative diagonal-cruciform test specimen that significantly enhances the characterization of formability limits in sheet metal forming. The specimen's unique design features a reticular two-dimensional geometric structure, with four triangular arms connecting at the center, which effectively induce biaxial tension stress states when subjected to uniaxial loading. Furthermore, the incorporation of machined spherical cups at its center to locally reduce thickness ensures that damage accumulates in this region. Experimental strain loading paths are captured using digital image correlation (DIC) and analyzed with in-house software developed specifically for research and education on material formability. The software identifies and plots the onsets of necking and fracture in principal strain space, and results prove that the diagonal-cruciform specimen is highly effective in generating stable biaxial tension strain loading paths in C11000 copper sheets, operating under friction-independent conditions without the necessity for specialized testing equipment. The fracture limits are subsequently validated by comparing them against the strain loading paths obtained from a single-point incremental sheet-formed part up to failure. The investigation confirms the versatility and robustness of the novel diagonal-cruciform test specimen for evaluating the formability of C11000 copper sheets and provides valuable insights into its potential application across the broader field of sheet formability characterization.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"11 ","pages":"Article 100171"},"PeriodicalIF":6.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059966","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

Impact of partial rolling on structural integrity and mechanical properties of AA7075 Tailor Alloyed Blanks 局部轧制对AA7075定制合金板坯结构完整性和力学性能的影响

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Advances in Industrial and Manufacturing Engineering Pub Date : 2025-11-01 Epub Date: 2025-11-10 DOI: 10.1016/j.aime.2025.100176

Henrik Zieroth , Marcel Stephan , Michael Schmidt , Marion Merklein

{"title":"Impact of partial rolling on structural integrity and mechanical properties of AA7075 Tailor Alloyed Blanks","authors":"Henrik Zieroth , Marcel Stephan , Michael Schmidt , Marion Merklein","doi":"10.1016/j.aime.2025.100176","DOIUrl":"10.1016/j.aime.2025.100176","url":null,"abstract":"<div><div>This study investigates partial rolling as a post processing method to improve the microstructure and formability of Tailor Alloyed Blanks (TAB) fabricated from AA7075 via laser-induced element evaporation and filler wire alloying. While prior work demonstrated the feasibility of adapting the alloying concept to enhance ductility in targeted regions, process-induced porosity, surface irregularities and insufficient process robustness continue to limit industrial applicability. To overcome these limitations, partial rolling was applied to the modified region. A parametric study identified rolling pass as the dominant factor influencing work hardening, surface smoothing and defect closure. Applying a 0.35 mm rolling pass led to a 92 % reduction in surface irregularities, complete closure of hydrogen-related porosity and a 38 % improvement in true strain compared to the unrolled condition. The enhanced process robustness was confirmed by a significant reduction in true stress deviation, determined by upsetting tests on miniaturized specimens extracted from the adapted zone. 3-point bending tests further validated the improvement in formability, revealing a 50 % increase in bending angle compared to the unrolled TAB and double the value observed in the base material. Rolling speed had no measurable impact, whereas longitudinal rolling outperformed transverse rolling in achieving uniform strain and hardness distributions. These results establish partial rolling as an effective and scalable refinement step for TAB. It enables the translation of localized compositional tailoring into functional mechanical performance, thereby expanding the process window for high-strength aluminum alloys in forming applications.</div></div>","PeriodicalId":34573,"journal":{"name":"Advances in Industrial and Manufacturing Engineering","volume":"11 ","pages":"Article 100176"},"PeriodicalIF":6.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145520015","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