电弧增材制造单道单层工艺特性研究

doi:10.11896/cldb.19110204

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Abstract The cold metal transfer (CMT) technology was used to study the single-bead and single-layer process characteristics of marine high-strength steel wire and arc additive manufacturing (WAAM). By testing three process parameters of the protection gas different ratios, wire feeding speed (v_s) and welding speed (v_w) under the single welding bead characteristics, combined with the measurement of welding bead width, height, wetting angle and bead cross-section area under different process conditions, mastered the law of influence above three key process parameters. By the method of mathematical analysis, and full-period cosine function model which could accurately predict the single bead cross-section contour under the protection of 80% Ar+20% CO₂ mixed gas was established, which is basically consistent with the actual measurement results. It provided the basis for forming control of multi-layer WAAM.

Key words： cold metal transfer (CMT) wire and arc additive manufacturing (WAAM) single-bead and single-layer cross section contour

Published: 24 December 2020

CLC number:

TG444

Fund:This work was financially supported by the National Key Research and Development Program of China (2018YFB1105804).

About author:: Jintian Zhang, received his graduate degree in mate-rials science and technology from Luoyang Ship Material Research Institute in 2018. His main research direction is high performance metal additives manufacturing. In this field he has published 2 papers in core journals and applied for 2 invention patents.
Hai′ou Yang, received his B.S., M.S., and Ph.D. degrees in materials science and technology from Northwestern Polytechnical University in 1999, 2002, and 2008, respectively. His main research direction is high performance metal additives manufacturing, innovative design for additives manufacturing and application demonstration of additives manufacturing. In this field he has published more than 40 papers in core journals and more than 20 papers in SCI.

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	ZHANG Jintian
	WANG Xinghua
	WANG Tao
	MA Xiaolei
	YANG Hai′ou2

Cite this article:

ZHANG Jintian,WANG Xinghua,WANG Tao, et al. Study on the Processing Characteristics of Single-Bead and Single-Layer in the WAAM[J]. Materials Reports, 2020, 34(24): 24132-24137.

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http://www.mater-rep.com/EN/10.11896/cldb.19110204 OR http://www.mater-rep.com/EN/Y2020/V34/I24/24132

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