Advanced visual sensing and control in CMT-based WAAM processes

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...

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Main Authors: Rui Yu, Wenhang Li, Mingfang Wu, Jianxin Wang, Qinglin Han, Jiayou Wang, Siyu Bing
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Materials
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmats.2025.1499635/full
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author Rui Yu
Wenhang Li
Mingfang Wu
Jianxin Wang
Qinglin Han
Jiayou Wang
Siyu Bing
author_facet Rui Yu
Wenhang Li
Mingfang Wu
Jianxin Wang
Qinglin Han
Jiayou Wang
Siyu Bing
author_sort Rui Yu
collection DOAJ
description 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.
format Article
id doaj-art-143f190e4191454eb10501b228557de3
institution Kabale University
issn 2296-8016
language English
publishDate 2025-01-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Materials
spelling doaj-art-143f190e4191454eb10501b228557de32025-01-29T06:45:34ZengFrontiers Media S.A.Frontiers in Materials2296-80162025-01-011210.3389/fmats.2025.14996351499635Advanced visual sensing and control in CMT-based WAAM processesRui YuWenhang LiMingfang WuJianxin WangQinglin HanJiayou WangSiyu BingWire 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.https://www.frontiersin.org/articles/10.3389/fmats.2025.1499635/fullWAAMCMTvisual sensingquality controlimage processing
spellingShingle Rui Yu
Wenhang Li
Mingfang Wu
Jianxin Wang
Qinglin Han
Jiayou Wang
Siyu Bing
Advanced visual sensing and control in CMT-based WAAM processes
Frontiers in Materials
WAAM
CMT
visual sensing
quality control
image processing
title Advanced visual sensing and control in CMT-based WAAM processes
title_full Advanced visual sensing and control in CMT-based WAAM processes
title_fullStr Advanced visual sensing and control in CMT-based WAAM processes
title_full_unstemmed Advanced visual sensing and control in CMT-based WAAM processes
title_short Advanced visual sensing and control in CMT-based WAAM processes
title_sort advanced visual sensing and control in cmt based waam processes
topic WAAM
CMT
visual sensing
quality control
image processing
url https://www.frontiersin.org/articles/10.3389/fmats.2025.1499635/full
work_keys_str_mv AT ruiyu advancedvisualsensingandcontrolincmtbasedwaamprocesses
AT wenhangli advancedvisualsensingandcontrolincmtbasedwaamprocesses
AT mingfangwu advancedvisualsensingandcontrolincmtbasedwaamprocesses
AT jianxinwang advancedvisualsensingandcontrolincmtbasedwaamprocesses
AT qinglinhan advancedvisualsensingandcontrolincmtbasedwaamprocesses
AT jiayouwang advancedvisualsensingandcontrolincmtbasedwaamprocesses
AT siyubing advancedvisualsensingandcontrolincmtbasedwaamprocesses