{"title":"无皱成形法制造的金属板的壁厚演变和成形质量分析","authors":"Liyan Wang, Xu Luan, Shuangyu Liu, Xi Wang","doi":"10.1007/s12289-024-01846-8","DOIUrl":null,"url":null,"abstract":"<div><p>Sheet metal wrinkles-free forming method is a novel sheet metal forming technology which deforms a blank to the target part using low-melting point alloy (LMA) without the blank holder, increasing materials utilization rate and reducing the trimming process. The LMA medium used as a blank holder inhibiting wrinkles transfers forming load onto the surface of sheet metal, deforming and flowing as the deformation of the sheet metal, which affects the plastic flow state of the sheet metal. This paper aims to investigate the effect of the rheological behavior of LMA on the wall thickness distribution of sheet metal, combining numerical simulation and experiments. The stress–strain relationship is obtained by high-temperature tensile test of LMA under different temperature conditions, and numerical modeling of sheet metal forming with LMA medium is established by ABAQUS software. The influence of the process parameters on the surface pressure distribution of the sheet metal is investigated. The effect of forming temperature and medium layer thickness on the thinning is analyzed for revealing the intrinsic correlation of the surface pressure distribution and the thinning. Furthermore, the research on influence of the LMA medium rheological behavior on the distribution of the wall thickness of the formed part is performed. The experimental results are consistent with the numerical simulation results.</p></div>","PeriodicalId":591,"journal":{"name":"International Journal of Material Forming","volume":"17 5","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of wall thickness evolution and forming quality of sheet metal manufactured by wrinkles-free forming method\",\"authors\":\"Liyan Wang, Xu Luan, Shuangyu Liu, Xi Wang\",\"doi\":\"10.1007/s12289-024-01846-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Sheet metal wrinkles-free forming method is a novel sheet metal forming technology which deforms a blank to the target part using low-melting point alloy (LMA) without the blank holder, increasing materials utilization rate and reducing the trimming process. The LMA medium used as a blank holder inhibiting wrinkles transfers forming load onto the surface of sheet metal, deforming and flowing as the deformation of the sheet metal, which affects the plastic flow state of the sheet metal. This paper aims to investigate the effect of the rheological behavior of LMA on the wall thickness distribution of sheet metal, combining numerical simulation and experiments. The stress–strain relationship is obtained by high-temperature tensile test of LMA under different temperature conditions, and numerical modeling of sheet metal forming with LMA medium is established by ABAQUS software. The influence of the process parameters on the surface pressure distribution of the sheet metal is investigated. The effect of forming temperature and medium layer thickness on the thinning is analyzed for revealing the intrinsic correlation of the surface pressure distribution and the thinning. Furthermore, the research on influence of the LMA medium rheological behavior on the distribution of the wall thickness of the formed part is performed. The experimental results are consistent with the numerical simulation results.</p></div>\",\"PeriodicalId\":591,\"journal\":{\"name\":\"International Journal of Material Forming\",\"volume\":\"17 5\",\"pages\":\"\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-07-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Material Forming\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12289-024-01846-8\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, MANUFACTURING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Material Forming","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12289-024-01846-8","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
Analysis of wall thickness evolution and forming quality of sheet metal manufactured by wrinkles-free forming method
Sheet metal wrinkles-free forming method is a novel sheet metal forming technology which deforms a blank to the target part using low-melting point alloy (LMA) without the blank holder, increasing materials utilization rate and reducing the trimming process. The LMA medium used as a blank holder inhibiting wrinkles transfers forming load onto the surface of sheet metal, deforming and flowing as the deformation of the sheet metal, which affects the plastic flow state of the sheet metal. This paper aims to investigate the effect of the rheological behavior of LMA on the wall thickness distribution of sheet metal, combining numerical simulation and experiments. The stress–strain relationship is obtained by high-temperature tensile test of LMA under different temperature conditions, and numerical modeling of sheet metal forming with LMA medium is established by ABAQUS software. The influence of the process parameters on the surface pressure distribution of the sheet metal is investigated. The effect of forming temperature and medium layer thickness on the thinning is analyzed for revealing the intrinsic correlation of the surface pressure distribution and the thinning. Furthermore, the research on influence of the LMA medium rheological behavior on the distribution of the wall thickness of the formed part is performed. The experimental results are consistent with the numerical simulation results.
期刊介绍：
The Journal publishes and disseminates original research in the field of material forming. The research should constitute major achievements in the understanding, modeling or simulation of material forming processes. In this respect ‘forming’ implies a deliberate deformation of material.
The journal establishes a platform of communication between engineers and scientists, covering all forming processes, including sheet forming, bulk forming, powder forming, forming in near-melt conditions (injection moulding, thixoforming, film blowing etc.), micro-forming, hydro-forming, thermo-forming, incremental forming etc. Other manufacturing technologies like machining and cutting can be included if the focus of the work is on plastic deformations.
All materials (metals, ceramics, polymers, composites, glass, wood, fibre reinforced materials, materials in food processing, biomaterials, nano-materials, shape memory alloys etc.) and approaches (micro-macro modelling, thermo-mechanical modelling, numerical simulation including new and advanced numerical strategies, experimental analysis, inverse analysis, model identification, optimization, design and control of forming tools and machines, wear and friction, mechanical behavior and formability of materials etc.) are concerned.
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