V. V. Kvasnytskyi, A. O. Perepichai, O. V. Prokhorenko, O. A. Slyvinskyi, I. M. Lagodzinskyi
{"title":"不同工艺模式下生产的 PAW-MIG 焊接 1561 铝合金对接接头的应力-应变状态数值模拟","authors":"V. V. Kvasnytskyi, A. O. Perepichai, O. V. Prokhorenko, O. A. Slyvinskyi, I. M. Lagodzinskyi","doi":"10.1007/s11223-024-00645-5","DOIUrl":null,"url":null,"abstract":"<p>Hybrid plasma-arc welding with a consumable electrode (PAW-MIG) of sheet aluminum alloy blanks exposed to a fast-moving heat source is involved in the formation of residual stresses and strains that can lead to changes in size and shape, buckling distortion, fatigue strength reduction, and deterioration of other operational properties of the welded product. This necessitates to introduce additional arrangements for reducing welding strains, stresses, and displacements, such as rigid outfits. Finite-element analysis of residual stress-strain state parameters of PAW-MIG welded 1561 aluminum alloy butt joints 5 mm thick with two different process modes: in the free state and in the outfit followed by its removal after cooling, was performed. The PAW-MIG welding after the second alternative compared to the first one was established to reduce the total displacements by 15 times and equivalent stresses by more than 30%, it also provides a decrease in displacements on the weld axis: longitudinal by 1.5 times and buckling distortion by 16.7 times.</p>","PeriodicalId":22007,"journal":{"name":"Strength of Materials","volume":"68 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical Simulation of the Stress-Strain State of a PAW-MIG-Welded 1561 Aluminum Alloy Butt Joint Produced Under Different Process Modes\",\"authors\":\"V. V. Kvasnytskyi, A. O. Perepichai, O. V. Prokhorenko, O. A. Slyvinskyi, I. M. Lagodzinskyi\",\"doi\":\"10.1007/s11223-024-00645-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Hybrid plasma-arc welding with a consumable electrode (PAW-MIG) of sheet aluminum alloy blanks exposed to a fast-moving heat source is involved in the formation of residual stresses and strains that can lead to changes in size and shape, buckling distortion, fatigue strength reduction, and deterioration of other operational properties of the welded product. This necessitates to introduce additional arrangements for reducing welding strains, stresses, and displacements, such as rigid outfits. Finite-element analysis of residual stress-strain state parameters of PAW-MIG welded 1561 aluminum alloy butt joints 5 mm thick with two different process modes: in the free state and in the outfit followed by its removal after cooling, was performed. The PAW-MIG welding after the second alternative compared to the first one was established to reduce the total displacements by 15 times and equivalent stresses by more than 30%, it also provides a decrease in displacements on the weld axis: longitudinal by 1.5 times and buckling distortion by 16.7 times.</p>\",\"PeriodicalId\":22007,\"journal\":{\"name\":\"Strength of Materials\",\"volume\":\"68 1\",\"pages\":\"\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-07-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Strength of Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s11223-024-00645-5\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, CHARACTERIZATION & TESTING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Strength of Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11223-024-00645-5","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
Numerical Simulation of the Stress-Strain State of a PAW-MIG-Welded 1561 Aluminum Alloy Butt Joint Produced Under Different Process Modes
Hybrid plasma-arc welding with a consumable electrode (PAW-MIG) of sheet aluminum alloy blanks exposed to a fast-moving heat source is involved in the formation of residual stresses and strains that can lead to changes in size and shape, buckling distortion, fatigue strength reduction, and deterioration of other operational properties of the welded product. This necessitates to introduce additional arrangements for reducing welding strains, stresses, and displacements, such as rigid outfits. Finite-element analysis of residual stress-strain state parameters of PAW-MIG welded 1561 aluminum alloy butt joints 5 mm thick with two different process modes: in the free state and in the outfit followed by its removal after cooling, was performed. The PAW-MIG welding after the second alternative compared to the first one was established to reduce the total displacements by 15 times and equivalent stresses by more than 30%, it also provides a decrease in displacements on the weld axis: longitudinal by 1.5 times and buckling distortion by 16.7 times.
期刊介绍：
Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.
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