Topic
Spray forming
About: Spray forming is a research topic. Over the lifetime, 1153 publications have been published within this topic receiving 12869 citations. The topic is also known as: spray casting & spray deposition.
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TL;DR: In this article, the development status of the electric arc spray forming process applied in the field of rapid tooling was reviewed, and the key factors influencing the spraying process were discussed in detail, such as spraying material, atomization and deposition of the droplets, heat and mass transfer, residual stress and oxidation.
Abstract: As a key metal Rapid Prototyping(RP) technology,electric arc spray forming was concerned in the present study and compared with the near-net-shape spray forming and plasma spray forming processes.The development status of the electric arc spray forming process applied in the field of rapid tooling was reviewed,and the key factors influencing the spray forming process were discussed in detail,such as spraying material,atomization and deposition of the droplets,heat and mass transfer,residual stress and oxidation.Finally,some suggestions about the developing directions and solving methods for arc spray forming thick tools were put forward.
3 citations
3 citations
TL;DR: In this article, the influence of hot isostatic pressure treatment (HIP) and homogenizing treatment on porous defects in spray-formed 7XXX aluminum alloy was studied, and the results indicate that the porous defects are interstices, interlinked pores and gas pores.
3 citations
3 citations
TL;DR: In this paper, a novel reactive technique has been employed to fabricate 2.0 mass%TiB(2)/70Si-Al composite and the growth behavior of primary Si phase was investigated when the composite was heated in its semi solid state.
Abstract: A novel reactive technique has been employed to fabricate 2.0 mass%TiB(2)/70Si-Al composite. The growth behavior of primary Si phase in the 2.0 mass%TiB(2)/70Si-Al composite was investigated when the composite was heated in its semi-solid state. Both theoretical and experimental results have shown that the in-situ TiB(2) particles can refine effectively the primary Si phase and restrain the Si phase growth. The coarsening rate constant of the 2.0 mass%TiB(2)/70Si-Al composite was calculated as 3.69 x 10(-18) m(3)/s, which is less than that of 70Si-Al alloy (7.6 x 10(-17) m(3)/s), suggesting that the in-situ TiB(2) particles can effectively pin the grain boundaries and arrest the migration of liquid film when the composite was heated in its semi-solid state. [doi:10.2320/matertrans.M2011066]
3 citations