Electron Beam Additive Manufacturing with Wire

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Electron Beam Additive Manufacturing with Wire

Journal Title: Trends in Civil Engineering and its Architecture - Year 2018, Vol 1, Issue 2

Abstract

Electron beam additive manufacturing with wire (EBAMW) is a novel technology which can directly fabricate 3-D near-net shape elements from metal wires. Of specific interest are the additive layer manufacturing processes with wires that are capable for producing fully dense metallic and hybrid parts in which the resulting parts may be used for loaded structure. This process is attractive because it eliminates contamination compare to powder process. Manufacturing near-net-shape elements layer-by-layer with wire as a deposit material offers a great potential for time and cost savings in comparison to conventional manufacturing technologies (such as casting, forging, etc.). The increasing market especially for aerospace industry demands for titanium, aluminum and other materials serial production parts has promoted wire- feed processes in recent years, as repeatability, material properties, material usage, possible part size, and building speed have also become issues. Research carried out up to date was focused on the possibility of using EBAMW in space [1,2] and the ability to produce ready-made elements that meet the requirements of the space sector industry. Mitzner et al. [3] revealed that through the use of modulation of electron beam the refinement of the microstructure in the titanium alloy can be achieved. Gonzales et. al. [4] indicated that the use of flux cored wires containing aluminum, iron and boron allows manufacturing Ti-6Al-4V titanium alloys with a more stable and finer microstructure. The rapid prototyping process using a beam allows to produce a Ti-6Al-4V titanium airframe element at lower cost compared to older solution. The reduction of material consumption by 79% was achieved. The aim of the presented work was to carried out research on electron beam additive manufacturing with a stainless steel wire as a filler material. The scope of the work was to investigate the influence of selected EBAMW technological parameters such on stability of deposition process. The EBAMW process was conducted based on EB machine CVE XW150 model: 30/756 (Figure 1). The device is equipped with a wire feeder and a working chamber with a volume of 4.9m3. The device is equipped with a system to monitor and record of the process parameters. The following parameters were applied during experimental tests: feeding angle 30°, working pressure 5•10-5mbar, beam current in the range of 1-30mA, accelerating voltage from 60 to 150kV, wire feed rate from 600 to 3600 mm/ min, travelling speed from 200 to 7000mm/min. To an additive manufacturing specimens welding wire 1.2mm in diameter (LNM307 Lincoln Electric: C 0.07%, Mn 7.1%, Si 0.8%, Cr 18.6%, Ni 8.0% wt.) was applied.

Authors and Affiliations

Węglowski M, St Błacha S

Keywords

Lupine Publishers Lupine Publishers Group lupine publishers indexing Journals lupine publishers indexing list lupine publishers indexing sites Indexed Journals indexed journals list List of Indexed Journals lupine publishers impact factor lupine publishers open access journals lupine publishers indexing Lupine group Lupine online open access open access journals open access journals publishers lupinepublishers Civil civil Engineering Electron Beam aerospace industry aluminum iron titanium airframe stainless steel

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EP ID EP605042
DOI 10.32474/TCEIA.2018.01.000106
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