Fabricating Pyramidal Lattice Structures of 304 L Stainless Steel by Wire Arc Additive Manufacturing
Lattice structures have drawn considerable attention due to their superior mechanical properties. However, the existing fabrication methods for lattice structures require complex procedures, as they have low material utilization and lead to unreliable node connections, which greatly restricts their...
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MDPI AG
2020-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/16/3482 |
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| author | Haorui Zhang Junjin Huang Changmeng Liu Yongsheng Ma Yafeng Han Tianqiu Xu Jiping Lu Hongli Fang |
| author_facet | Haorui Zhang Junjin Huang Changmeng Liu Yongsheng Ma Yafeng Han Tianqiu Xu Jiping Lu Hongli Fang |
| author_sort | Haorui Zhang |
| collection | DOAJ |
| description | Lattice structures have drawn considerable attention due to their superior mechanical properties. However, the existing fabrication methods for lattice structures require complex procedures, as they have low material utilization and lead to unreliable node connections, which greatly restricts their application. In this work, wire arc additive manufacturing is used to fabricate large-scale lattice structures efficiently, without any air holes between rods and panels. The principle and the process of fabricating the rods were analyzed systematically. The influence of the two most important parameters, including heat input and preset layer height, is disclosed. Through optical microscopy, the microstructure of the fabricated steel rods is found to consist of dendritic austenite and skeletal ferrite. The tensile strength of the rods can reach 603 MPa, and their elongation reaches 77%. These experimental results demonstrated the feasibility of fabricating lattice structures using wire arc additive manufacturing. |
| first_indexed | 2024-03-10T17:50:04Z |
| format | Article |
| id | doaj.art-9772844dee7b47db9222757d0fff9f06 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T17:50:04Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-9772844dee7b47db9222757d0fff9f062023-11-20T09:23:33ZengMDPI AGMaterials1996-19442020-08-011316348210.3390/ma13163482Fabricating Pyramidal Lattice Structures of 304 L Stainless Steel by Wire Arc Additive ManufacturingHaorui Zhang0Junjin Huang1Changmeng Liu2Yongsheng Ma3Yafeng Han4Tianqiu Xu5Jiping Lu6Hongli Fang7School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaDepartment of Mechanical Engineering, University of Alberta, Edmonton, AB T6G2H5, CanadaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaLattice structures have drawn considerable attention due to their superior mechanical properties. However, the existing fabrication methods for lattice structures require complex procedures, as they have low material utilization and lead to unreliable node connections, which greatly restricts their application. In this work, wire arc additive manufacturing is used to fabricate large-scale lattice structures efficiently, without any air holes between rods and panels. The principle and the process of fabricating the rods were analyzed systematically. The influence of the two most important parameters, including heat input and preset layer height, is disclosed. Through optical microscopy, the microstructure of the fabricated steel rods is found to consist of dendritic austenite and skeletal ferrite. The tensile strength of the rods can reach 603 MPa, and their elongation reaches 77%. These experimental results demonstrated the feasibility of fabricating lattice structures using wire arc additive manufacturing.https://www.mdpi.com/1996-1944/13/16/3482wire arc additivemanufacturinglattice structures304 L stainless steelmicrostructure |
| spellingShingle | Haorui Zhang Junjin Huang Changmeng Liu Yongsheng Ma Yafeng Han Tianqiu Xu Jiping Lu Hongli Fang Fabricating Pyramidal Lattice Structures of 304 L Stainless Steel by Wire Arc Additive Manufacturing Materials wire arc additive manufacturing lattice structures 304 L stainless steel microstructure |
| title | Fabricating Pyramidal Lattice Structures of 304 L Stainless Steel by Wire Arc Additive Manufacturing |
| title_full | Fabricating Pyramidal Lattice Structures of 304 L Stainless Steel by Wire Arc Additive Manufacturing |
| title_fullStr | Fabricating Pyramidal Lattice Structures of 304 L Stainless Steel by Wire Arc Additive Manufacturing |
| title_full_unstemmed | Fabricating Pyramidal Lattice Structures of 304 L Stainless Steel by Wire Arc Additive Manufacturing |
| title_short | Fabricating Pyramidal Lattice Structures of 304 L Stainless Steel by Wire Arc Additive Manufacturing |
| title_sort | fabricating pyramidal lattice structures of 304 l stainless steel by wire arc additive manufacturing |
| topic | wire arc additive manufacturing lattice structures 304 L stainless steel microstructure |
| url | https://www.mdpi.com/1996-1944/13/16/3482 |
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