About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Poster Session
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Presentation Title |
Additive Manufacturing of Cu-Ni-Tool Steel Multi-metallic Structures |
Author(s) |
Xinchang Zhang, Lan Li, Tan Pan, Frank Liou |
On-Site Speaker (Planned) |
Xinchang Zhang |
Abstract Scope |
Cooling capability of casting dies/molds is critical to lead to less cycle times and resist thermally-induced defects. Traditionally, cooling channels are designed in dies to cool the components. In this study, a new Cu-Ni-Tool Steel multi-metallic structures was designed and fabricated by additive manufacturing to take advantage of the excellent thermal conductivity of Cu. Multiple layers of Ni were inserted between Cu and tool steel as direct depositing Cu on tool steel results in cracking. The fabricated Cu-Ni-Tool Steel structures were heat-treated to study the effects of heat treatment on the properties of the structures. Microstructure characterization, elemental distribution, tensile testing, and hardness measurements were conducted on the as-fabricated and heat-treated parts. Besides, the residual stress of the structures were measured by X-ray diffraction, and was compared with simulation results. This investigation shows Cu-Ni-Tool Steel multi-metallic structures can be successfully fabricated by additive manufacturing, benefiting the design of casting dies/molds. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |