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ZHANG Jintian, WANG Xinghua, WANG Tao. Research on forming control for single-pass multi-layer of WAAM[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(12): 63-67. DOI: 10.12073/j.hjxb.2019400314
Citation: ZHANG Jintian, WANG Xinghua, WANG Tao. Research on forming control for single-pass multi-layer of WAAM[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(12): 63-67. DOI: 10.12073/j.hjxb.2019400314
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Research on forming control for single-pass multi-layer of WAAM

  • Luoyang Ship Material Research Institute, Luoyang 471023, China

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  • Received Date: July 14, 2019
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    • Abstract
  • The wire & arc additive manufacturing (WAAM) of cold metal transfer (CMT) for high-strength marine steel was studied. By analyzing the influence of different proportion of shielding gas on the morphology of single-pass single-layer, the results showed that the wetting capacity of single-pass single-layer increases with the increase of CO2 in the shielding gas. And a full-period cosine function prediction model was established, which could accurately predict the section profile of single-pass single-layer under 80% Ar + 20% CO2 shielding gas. According to the forming characteristics of single-pass multi-layer, a prediction model for single-pass multi-layer uplift distance h was established based on the area relationship and geometric morphology. The relative error of the predicted value of uplift distance h was less than 3.50%. By establishing the uplift distance model, it provided theoretical support for single-pass multi-layer of wire & arc additive manufacturing.
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    • References (9)
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