Investigations on the warm spinning characteristics and processing parameters optimization of AA 7075 aluminum alloy conical parts with inner ribs

The warm spinning of AA7075 aluminum alloy conical parts with internal ribs involves complex deformation conditions including compression and shear plastic deformation. To mechanistically reproduce these deformation characteristics, the warm compression tests and notched specimen warm tensile tests...

Full description

Saved in:
Bibliographic Details
Main Authors: Jia-Fu Wu, Daoguang He, Y.C. Lin
Format: Article
Language:English
Published: Elsevier 2025-09-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785425019970
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1849228402049941504
author Jia-Fu Wu
Daoguang He
Y.C. Lin
author_facet Jia-Fu Wu
Daoguang He
Y.C. Lin
author_sort Jia-Fu Wu
collection DOAJ
description The warm spinning of AA7075 aluminum alloy conical parts with internal ribs involves complex deformation conditions including compression and shear plastic deformation. To mechanistically reproduce these deformation characteristics, the warm compression tests and notched specimen warm tensile tests were implemented. The stress-strain responses and corresponding displacement-load curves of AA7075 aluminum alloy were systematically analyzed to develop a unified elastic-viscoplastic constitutive model. The developed model incorporates the interaction mechanism of the dislocation density and grain/subgrain size, along with a modified GTN constitutive model. Then, the model was implemented into ABAQUS software via user subroutines to reveal the influences of spinning parameters upon the Marco-forming characteristics including the rib height and conicality of AA7075 aluminum alloy conical parts. The SVM-XGBoost hybrid model was employed to optimize warm spinning parameters. The optimal processing window for the warm spinning of AA7075 aluminum alloy conical parts with internal ribs was determined as follows: forming temperature (200–230 °C), feed rate (0.8–1.2 mm·r−1), and thinning ratio (50–60 %). The engineering trial results demonstrate that components fabricated within the identified process window achieve satisfactory forming accuracy, with consistent mechanical properties and microstructural characteristics. This verifies the reliability of the SVM-XGBoost hybrid model for process parameter optimization.
format Article
id doaj-art-d8d679bb6cff4180a739dbf44d3e81e7
institution Kabale University
issn 2238-7854
language English
publishDate 2025-09-01
publisher Elsevier
record_format Article
series Journal of Materials Research and Technology
spelling doaj-art-d8d679bb6cff4180a739dbf44d3e81e72025-08-23T04:48:32ZengElsevierJournal of Materials Research and Technology2238-78542025-09-01382960297710.1016/j.jmrt.2025.08.044Investigations on the warm spinning characteristics and processing parameters optimization of AA 7075 aluminum alloy conical parts with inner ribsJia-Fu Wu0Daoguang He1Y.C. Lin2School of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China; School of Mechanical Engineering, Guiyang University, Guiyang, 550005, ChinaSchool of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Changsha, 410083, China; Corresponding author. School of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China.School of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Changsha, 410083, China; Corresponding author. School of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China.The warm spinning of AA7075 aluminum alloy conical parts with internal ribs involves complex deformation conditions including compression and shear plastic deformation. To mechanistically reproduce these deformation characteristics, the warm compression tests and notched specimen warm tensile tests were implemented. The stress-strain responses and corresponding displacement-load curves of AA7075 aluminum alloy were systematically analyzed to develop a unified elastic-viscoplastic constitutive model. The developed model incorporates the interaction mechanism of the dislocation density and grain/subgrain size, along with a modified GTN constitutive model. Then, the model was implemented into ABAQUS software via user subroutines to reveal the influences of spinning parameters upon the Marco-forming characteristics including the rib height and conicality of AA7075 aluminum alloy conical parts. The SVM-XGBoost hybrid model was employed to optimize warm spinning parameters. The optimal processing window for the warm spinning of AA7075 aluminum alloy conical parts with internal ribs was determined as follows: forming temperature (200–230 °C), feed rate (0.8–1.2 mm·r−1), and thinning ratio (50–60 %). The engineering trial results demonstrate that components fabricated within the identified process window achieve satisfactory forming accuracy, with consistent mechanical properties and microstructural characteristics. This verifies the reliability of the SVM-XGBoost hybrid model for process parameter optimization.http://www.sciencedirect.com/science/article/pii/S22387854250199707075 aluminum alloyWarm spinningProcess parameter optimizationSVM-XGBoost hybrid model
spellingShingle Jia-Fu Wu
Daoguang He
Y.C. Lin
Investigations on the warm spinning characteristics and processing parameters optimization of AA 7075 aluminum alloy conical parts with inner ribs
Journal of Materials Research and Technology
7075 aluminum alloy
Warm spinning
Process parameter optimization
SVM-XGBoost hybrid model
title Investigations on the warm spinning characteristics and processing parameters optimization of AA 7075 aluminum alloy conical parts with inner ribs
title_full Investigations on the warm spinning characteristics and processing parameters optimization of AA 7075 aluminum alloy conical parts with inner ribs
title_fullStr Investigations on the warm spinning characteristics and processing parameters optimization of AA 7075 aluminum alloy conical parts with inner ribs
title_full_unstemmed Investigations on the warm spinning characteristics and processing parameters optimization of AA 7075 aluminum alloy conical parts with inner ribs
title_short Investigations on the warm spinning characteristics and processing parameters optimization of AA 7075 aluminum alloy conical parts with inner ribs
title_sort investigations on the warm spinning characteristics and processing parameters optimization of aa 7075 aluminum alloy conical parts with inner ribs
topic 7075 aluminum alloy
Warm spinning
Process parameter optimization
SVM-XGBoost hybrid model
url http://www.sciencedirect.com/science/article/pii/S2238785425019970
work_keys_str_mv AT jiafuwu investigationsonthewarmspinningcharacteristicsandprocessingparametersoptimizationofaa7075aluminumalloyconicalpartswithinnerribs
AT daoguanghe investigationsonthewarmspinningcharacteristicsandprocessingparametersoptimizationofaa7075aluminumalloyconicalpartswithinnerribs
AT yclin investigationsonthewarmspinningcharacteristicsandprocessingparametersoptimizationofaa7075aluminumalloyconicalpartswithinnerribs