Advances in Manufacturing ›› 2024, Vol. 12 ›› Issue (1): 124-149.doi: 10.1007/s40436-023-00457-x

• • 上一篇    

Effect of cooling media on bead geometry, microstructure, and mechanical properties of wire arc additive manufactured IN718 alloy

Parveen Kumar, Satish Kumar Sharma, Ratnesh Kumar Raj Singh   

  1. Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India
  • 收稿日期:2023-01-28 修回日期:2023-03-28 发布日期:2024-03-14
  • 通讯作者: Satish Kumar Sharma,E-mail:satishsharma847@gmail.com E-mail:satishsharma847@gmail.com
  • 作者简介:Parveen Kumar is a PhD student in Department of Mechanical Engineering at the Thapar Institute of Engineering and Technology, Patiala. His main research topic is enhancing the WAAM processes through different cooling mediums. Moreover, he is working on developing of FGMs through cold metal transfer techniques. Mr. Kumar has done his Masters in CAD/ CAM and robotics from Thapar Institute of Engineering and Technology in 2014. He has an experience of more than 10 years in teaching and research. Mr. Kumar has published many articles in peer-reviewed journals and international conferences;
    Satish Kumar Sharma is an assistant professor in the department of Mechanical Engineering at Thapar Institute of Engineering & Technology Patiala. Having obtained his PhD in welding in 2018, he began to look into the economic viability of welding process for additive manufacturing. Dr. Sharma is an active researcher in the area of welding science and technology with its new horizons of application, i.e., wire arc additive manufacturing (WAAM), development of functionally graded materials (FGM), graphene reinforced metal-matrix composite (GrMMC). Dr. Sharma has published many academic and research publications in the area of welding and its application areas (like WAAM and FGM) in reputed journals, international conferences and book chapters. Dr. Sharma is also serving as a referee to several international journals and conferences. Moreover, he is supervising the research work of many Masters as well as Doctoral students in the area of manufacturing and automation;
    Ratnesh Kumar Raj Singh works in the area of friction stir welding, processing, foam manufacturing and wire arc additive manufacturing (WAAM). He received his doctoral degree from Indian Institute of Technology and masters from Indian Institute of Technology Roorkee in 2017 and 2010, respectively. He has more than 5 years’ experience of teaching and research. He carried out his PhD research work on experimental investigation of friction stir welding. Dr. Singh has published many peer-reviewed journal and international conference. He is supervising the research work of many Masters as well as doctoral students in the area of manufacturing, material characterization and welding.

Effect of cooling media on bead geometry, microstructure, and mechanical properties of wire arc additive manufactured IN718 alloy

Parveen Kumar, Satish Kumar Sharma, Ratnesh Kumar Raj Singh   

  1. Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala, Punjab, 147004, India
  • Received:2023-01-28 Revised:2023-03-28 Published:2024-03-14
  • Contact: Satish Kumar Sharma,E-mail:satishsharma847@gmail.com E-mail:satishsharma847@gmail.com

摘要: This work aims to present and explore thermal management techniques for the wire arc additive manufacturing (WAAM) of IN718 components. Excessive heat can be mitigated via air or water cooling. In this study, the material was deposited under four different heat-input conditions with air or water cooling. In air cooling, the layer is deposited in a normal atmospheric air environment, whereas with water cooling, the material is deposited inside a water tank by varying the water level. To validate the air and water cooling thermal management techniques, IN718 single-pass and multilayer linear walls were deposited using the bidirectional gas metal arc welding based WAAM setup under four different heat input conditions. During the deposition of single layers, the temperature profiles were recorded, and the geometric and microstructural features were explored. For multilayer wall structures, the mechanical properties (hardness, tensile strength, and elongation) were determined and assessed using the corresponding microstructural features explored through scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and electron backscatter diffraction (EBSD) analyses. The microstructure observed through SEM analysis in the building direction was found to be nonhomogenous compared with that in the deposition direction. Moreover, water cooling was found to govern bead characteristics, such as wall width and height. The grain size and anisotropy of the mechanical properties also decreased in the water-cooled case. Hence, water cooling is an economical and efficient method to mitigate excessive heat accumulation in WAAM-deposited IN718.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-023-00457-x

关键词: Air cooling, Water cooling, IN718, Bead characteristics, Microstructure, Electron backscatter diffraction (EBSD)

Abstract: This work aims to present and explore thermal management techniques for the wire arc additive manufacturing (WAAM) of IN718 components. Excessive heat can be mitigated via air or water cooling. In this study, the material was deposited under four different heat-input conditions with air or water cooling. In air cooling, the layer is deposited in a normal atmospheric air environment, whereas with water cooling, the material is deposited inside a water tank by varying the water level. To validate the air and water cooling thermal management techniques, IN718 single-pass and multilayer linear walls were deposited using the bidirectional gas metal arc welding based WAAM setup under four different heat input conditions. During the deposition of single layers, the temperature profiles were recorded, and the geometric and microstructural features were explored. For multilayer wall structures, the mechanical properties (hardness, tensile strength, and elongation) were determined and assessed using the corresponding microstructural features explored through scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and electron backscatter diffraction (EBSD) analyses. The microstructure observed through SEM analysis in the building direction was found to be nonhomogenous compared with that in the deposition direction. Moreover, water cooling was found to govern bead characteristics, such as wall width and height. The grain size and anisotropy of the mechanical properties also decreased in the water-cooled case. Hence, water cooling is an economical and efficient method to mitigate excessive heat accumulation in WAAM-deposited IN718.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-023-00457-x

Key words: Air cooling, Water cooling, IN718, Bead characteristics, Microstructure, Electron backscatter diffraction (EBSD)