Review on powder-based electron beam additive manufacturing technology
By Xibin Gong, T. Anderson, Kevin Chou. 2012
370 citations recorded by the source corpus.
This paper presents a thorough literature review of the powder-based electron beam additive manufacturing (EBAM) technology. EBAM, a relatively new additive manufacturing (AM) process, can produce full-density metallic parts directly from the electronic data of the designed part geometry. EBAM has gained broad attentions from different industries such as aerospace and biomedical, with great potential in a variety of applications. The paper first introduces the general aspects of EBAM. The unique characteristics, advantages and challenges of EBAM are then presented. Moreover, the hub of this paper includes extensive discussions of microstructures, mechanical properties, geometric attributes, which impact the application ranges of EBAM parts, with focus on commonly used titanium alloys (in particular, Ti-6Al-4V). In the end, modeling efforts and process metrology of the EBAM process are discussed as well.
Subfields: Automotive Engineering, Materials Chemistry, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/7d8f0a88f7458a4bf0e82652eef89decd5f0cca4
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Citations in the corpus
- A comparative study of additive manufacturing techniques: Residual stress and microstructural analysis of CLAD and WAAM printed Ti–6Al–4V components (2016, neutral): “However, EBM AM part size is determined by the powder bed geometry, and therefore for the larger parts production WAAM or CLAD techniques are preferred [9].”
- Additive manufacturing of metals (2016, positive): “By feeding helium to the work area during the melting process the pressure inside the system is increased to approximately 1 Pa so that electrical charging of the powder particles is avoided and heat conduction and cooling of the melt is enhanced [8,32].”
- 3D printing: an emerging tool for novel microfluidics and lab-on-a-chip applications (2016, neutral): “Resolutions of metallic AM processes like SLS and EBM are also limited by the focus of power source and powder sizes (Clare et al. 2008; Gong et al. 2012), and the spatial resolution is typically in the range of 10 ~ 500 μm.”
- Additive manufacturing of metallic components – Process, structure and properties (2018, background): “Internal pores may be closed by hot isostatic pressing (HIP) [193] after the process, although these post processing operations are time consuming and expensive.”
- Review of in-situ process monitoring and in-situ metrology for metal additive manufacturing (2016, background): “Reviews of both the laser-PBF [30] and electron beam-PBF processes [31] have been carried out and provide further detail of the process variants.”
- Metal additive manufacturing in the commercial aviation industry: A review (2019, background): “All layers together can make a solid form or the support structure with a thin layer [52].”
- Revisiting fundamental welding concepts to improve additive manufacturing: From theory to practice (2020, background): “Porosity or gas voids resulting from entrapped gases are typically observed in powder-bed systems [103].”
- Turbomachinery component manufacture by application of electrochemical, electro-physical and photonic processes (2014, neutral): “Electron beam melted Ti–6Al–4V exhibits anisotropic behaviour of its mechanical properties according to studies performed by Hrabe and Quinn [90,91].”
- The effect of laser scanning strategies on texture, mechanical properties, and site-specific grain orientation in selective laser melted 316L SS (2020, background): “Porosity in the as-processed parts can also arise due to the presence of entrapped gases, resulting from oxide decomposition at high temperatures during the SLM process [69].”