The final, formatted version of the article will be published soon.
ORIGINAL RESEARCH article
Front. Mater.
Sec. Mechanics of Materials
Volume 12 - 2025 |
doi: 10.3389/fmats.2025.1499635
This article is part of the Research Topic Design and Mechanical Failure of Deep-Sea Pressure Structures - Volume II View all articles
Advanced Visual Sensing and Control in CMT-Based WAAM Processes
Provisionally accepted- Jiangsu University of Science and Technology, Zhenjiang, China
Wire Arc Additive Manufacturing (WAAM) can flexibly produce high-performance parts that meet the requirements of deep-sea environments, but it has problems with insufficient molding accuracy and surface smoothness, which require improved precision and quality. To address these challenges, this paper establishes a WAAM experimental system based on Cold Metal Transfer (CMT) technology. First, the influence of process parameters on multi-layer single-channel forming was studied. Second, a structured light visual sensing system based on a high-speed camera was developed. Finally, a method for controlling the camera's triggering mode at low voltage was designed, effectively eliminating arc interference. The experiment extracted and preprocessed the laser stripe ROI (Region of Interest), extracted geometric size information of the weld seam, and then performed median filtering to extract the centerline and feature points. By constructing a CMT-based WAAM monitoring system, high reliability and quality control of the manufacturing process and weld formation have been achieved.
Keywords: WAAM1, CMT2, Visual sensing3, Quality control4, image processing5
Received: 21 Sep 2024; Accepted: 09 Jan 2025.
Copyright: © 2025 Yu, Li, Wu, Wang, Han, Wang and Bing. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
WenHang Li, Jiangsu University of Science and Technology, Zhenjiang, China
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.