Advanced Manufacturing Research最新文献

Numerical modelling of the warping behaviour at the first layer-build plate interface in 3D-printed models produced via the fused deposition modelling process 通过熔融沉积建模工艺制作的 3D 打印模型中第一层与构建板界面的翘曲行为的数值建模

Advanced Manufacturing Research Pub Date : 2024-04-14 DOI: 10.21595/amr.2024.23845

Raviduth Ramful

{"title":"Numerical modelling of the warping behaviour at the first layer-build plate interface in 3D-printed models produced via the fused deposition modelling process","authors":"Raviduth Ramful","doi":"10.21595/amr.2024.23845","DOIUrl":"https://doi.org/10.21595/amr.2024.23845","url":null,"abstract":"The material structure of 3D-models printed via the fused deposition modelling (FDM) technique is mainly affected in the z-direction of the 3D-print as a result of the layer-by-layer approach which tend to exhibit a deformation behavior corresponding to a type of transversely orthotropic material. Moreover, uncontrolled parameters such as printing temperature and printing speed have been reported to adversely affect 3D-print quality leading to undesired effects such as distortion and warpage. The additive manufacturing process is a relatively new field in advanced manufacturing where further research and innovation are required to overcome the limited strength and structural performance observed in presently 3D-printed components. In line with the above, this study proposes the numerical investigation of the warping behavior in PLA (Polylactic acid) - based 3D printed models by considering the finite element method (FEM) software of LS-DYNA. The warping investigation was specifically centered on the cooling cycle prevailing between the layer-by-layer structures. The findings of this study showed that warpage would most likely occur in the thermal process model corresponding to abrupt change in temperature due to a buildup of strain between the bottom most layers of the 3D model and the build plate. The findings of this study, which shed light on the warping behaviour in 3D-models, has direct implications on the final quality of 3D-printed components.","PeriodicalId":495260,"journal":{"name":"Advanced Manufacturing Research","volume":"2 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140706506","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

Adoption of metal additive manufacturing in nnpc limited: current state and challenges 有色金属加工有限公司采用金属快速成型技术：现状与挑战

Advanced Manufacturing Research Pub Date : 2024-04-02 DOI: 10.21595/amr.2024.23805

Al-Amin Barambu Umar, Muniru M. Mai, Devon Hagedorn-Hansen

引用次数: 0

1D manipulator with vibration impact drive, based on which it is possible to create orthogonal manipulators and robots of any dimension 带有振动冲击驱动装置的 1D 机械手，可在此基础上制造正交机械手和任意尺寸的机器人

Advanced Manufacturing Research Pub Date : 2024-03-17 DOI: 10.21595/amr.2024.23930

K. Ragulskis, L. Ragulskis

引用次数: 0

Multi-indicator optimization of riveting joint forming quality of aluminum alloy sheets based on response surface test 基于响应面试验的铝合金薄板铆接成形质量多指标优化

Advanced Manufacturing Research Pub Date : 2023-11-04 DOI: 10.21595/amr.2023.23627

Shi Liu, Yong Qiang Zhao, Da Hai Wang, Miao Yuan Mei, Tao Huang

{"title":"Multi-indicator optimization of riveting joint forming quality of aluminum alloy sheets based on response surface test","authors":"Shi Liu, Yong Qiang Zhao, Da Hai Wang, Miao Yuan Mei, Tao Huang","doi":"10.21595/amr.2023.23627","DOIUrl":"https://doi.org/10.21595/amr.2023.23627","url":null,"abstract":"In this paper, the effects of the interaction between punch diameter, die depth and punch speed on the quality of riveted joints are investigated using the BBD response surface test method. The results show that the mold depth has the greatest influence on the key dimensional parameters of riveted joints, followed by the punching speed, and then the punch diameter, while the punch diameter and the mold depth are the two factors with the most obvious interaction. The optimum riveted joint process parameters determined are punch diameter of 5.24 mm, die depth of 1.44 mm, and stamping speed of 5.00 mm/s. The corresponding relative errors predicted by numerical simulation and response surface optimization objective are 5.96 % for neck thickness, 3.29 % for interlocking value, and 1.37 % for bottom thickness; and the relative errors predicted by experimental results and optimization objective are 13.42 % for neck thickness, 13.42 % for interlocking value, and 1.37 % for bottom thickness. 13.42 %, interlock value is 4.23 %, and bottom thickness is 2.23 %, the model accuracy is high, and the optimization method of response surface test can effectively improve the quality of riveted joints. Through numerical simulation, the metal flow law and stress distribution during the riveting and forming process of aluminum alloy plate were analyzed, and the strength test of riveted joint was carried out, and the maximum destructive shear load of the joint was 1.8 KN, and the strength of the joint was improved, which verified the validity of the response surface optimization method.","PeriodicalId":495260,"journal":{"name":"Advanced Manufacturing Research","volume":"28 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135774445","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