Effects of welding current on the shape and microstructure formation of thin-walled low-carbon parts built by wire arc additive manufacturing
Keywords:Additive manufacturing, Wire arc additive manufacturing, Gas metal arc welding, Low-carbon steel, Microstructure formation, Mechanical properties.
AbstractWire arc additive manufacturing (WAAM) is nowadays gaining much attention from both the academic and industrial sectors for the manufacture of medium and large dimension metal parts because of its high deposition rate and low costs of equipment investment. In the literature, WAAM has been extensively investigated in terms of the shape and dimension accuracy of built parts. However, limited research has focused on the effects of welding parameters on the microstructural characteristics of parts manufactured by this process. In this paper, the effects of welding current in the WAAM process on the shape and the microstructure formation of built thin-walled low-carbon steel components were studied. For this purpose, the thin-walled low-carbon steel samples were built layer-by-layer on the substrates by using an industrial gas metal arc welding robot with different levels of welding current. The shape, microstructures and mechanical properties of built samples were then analyzed. The obtained results show that the welding current plays an important role in the shape stability, but does not significantly influence on the microstructure formation of built thin-walled samples. The increase of the welding current only leads to coarser grain size and resulting in decreasing the hardness of built materials in each zone of the built sample. The mechanical properties (hardness and tensile properties) of the WAAM-built thin-walled low-carbon steel parts are also comparable to those of wrought low-carbon steel, and to be adequate with real applications.
Gibson I., Rosen D. W., Stucker B. - Additive Manufacturing Technologies. Boston, MA: Springer US; 2010. https://doi.org/10.1007/978-1-4419-1120-9.
Williams S. W., Martina F., Addison A. C., Ding J., Pardal G., Colegrove P. - Wire + Arc Additive Manufacturing. Mater. Sci. Technol. 32 (2016) 641–647. https://doi.org/10.1179/1743284715Y.0000000073.
Yin R., Ke J., Mendis G., Sutherland J. W. - A cutting parameter-based model for cost and carbon emission optimisation in a NC turning process. Int. J. Comput. Integr. Manuf. 00 (2019) 1–17. https://doi.org/10.1080/0951192x.2019.1667026.
Wu B., Pan Z., Ding D., Cuiuri D., Li H., Xu J., et al. - A review of the wire arc additive manufacturing of metals: properties, defects and quality improvement. J. Manuf. Process. 35 (2018) 127–39. https://doi.org/10.1016/j.jmapro.2018.08.001.
Derekar K.S. - A review of wire arc additive manufacturing and advances in wire arc additive manufacturing of aluminium. Mater. Sci. Technol. 34(2018) 895–916. https://doi.org/10.1080/02670836.2018.1455012.
Zhang Z., Sun C., Xu X., Liu L. - Surface quality and forming characteristics of thin-wall aluminium alloy parts manufactured by laser-assisted MIG arc additive manufacturing. Int. J. Light. Mater. Manuf. 1 (2018) 89–95. https://doi.org/10.1016/j.ijlmm.2018.03.005.
Xiong J., Li Y., Li R., Yin Z. - Influences of process parameters on surface roughness of multi-layer single-pass thin-walled parts in GMAW-based additive manufacturing. J. Mater. Process. Technol. 252 (2018) 128–136. https://doi.org/10.1016/j.jmatprotec.2017.09.020.
Xiong J., Zhang G. - Adaptive control of deposited height in GMAW-based layer additive manufacturing. J. Mater. Process. Technol. 214 (2014) 962–968. https://doi.org/10.1016/j.jmatprotec.2013.11.014.
Suryakumar S., Karunakaran K., Chandrasekhar U., Somashekara M. - A study of the mechanical properties of objects built through weld-deposition. Proc. Inst. Mech. Eng. Part B J. Eng. Manuf. 227 (2013) 1138–1147. https://doi.org/10.1177/0954405413482122.
Liberini M., Astarita A., Campatelli G., Scippa A., Montevecchi F., Venturini G., et al. - Selection of Optimal Process Parameters for Wire Arc Additive Manufacturing. Procedia CIRP. 62 (2017) 470–474. https://doi.org/10.1016/j.procir.2016.06.124.
Chen X., Li J., Cheng X., He B., Wang H., Huang Z. - Microstructure and mechanical properties of the austenitic stainless steel 316L fabricated by gas metal arc additive manufacturing. Mater. Sci. Eng. A. 703 (2017) 567–577. https://doi.org/10.1016/j.msea.2017.05.024.
Wu Q., Ma Z., Chen G., Liu C., Ma D., Ma S. - Obtaining fine microstructure and unsupported overhangs by low heat input pulse arc additive manufacturing. J. Manuf. Process. 27 (2017) 198–206. https://doi.org/10.1016/j.jmapro.2017.05.004.
Yang D., Wang G., Zhang G. - Thermal analysis for single-pass multi-layer GMAW based additive manufacturing using infrared thermography. J. Mater. Process. Technol. 244 (2017) 215–224. https://doi.org/10.1016/j.jmatprotec.2017.01.024.
Haden C. V., Zeng G., Carter F.M., Ruhl C., Krick B.A., Harlow D.G. Wire and arc additive manufactured steel: Tensile and wear properties. Addit. Manuf. 16 (2017) 115–123. https://doi.org/10.1016/j.addma.2017.05.010.
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