TY - CHAP
T1 - Online Control of Deposited Geometry of Multi-layer Multi-bead Structure for Wire and Arc Additive Manufacturing
AU - Han, Qinglin
AU - Li, Yongzhe
AU - Zhang, Guangjun
N1 - Publisher Copyright:
© 2018, Springer Nature Singapore Pte Ltd.
PY - 2018
Y1 - 2018
N2 - A robotic wire and arc additive manufacturing (WAAM) system with active vision sensing capability was implemented to improve the geometry accuracy of multi-layer multi-bead structures. Width and height of the deposited bead were online detected and the accuracies of the designed sensing approaches are 0.25 mm and 0.1 mm, respectively. A double-input-double-output controller with two subsystems was designed to ensure the uniformity of bead width and bead height. The bead width was adjusted by a single neuron self-learning PI controller, while the bead height was controlled based on a rule-based engine. The experimental results indicated that (i) accuracy of the deposited bead width is controlled in 0.5 mm, (ii) accumulation effect of the bead height deviations has disappeared when multiple layers are overlapped, and (iii) the surface finish of each layer was controlled to be flat as well.
AB - A robotic wire and arc additive manufacturing (WAAM) system with active vision sensing capability was implemented to improve the geometry accuracy of multi-layer multi-bead structures. Width and height of the deposited bead were online detected and the accuracies of the designed sensing approaches are 0.25 mm and 0.1 mm, respectively. A double-input-double-output controller with two subsystems was designed to ensure the uniformity of bead width and bead height. The bead width was adjusted by a single neuron self-learning PI controller, while the bead height was controlled based on a rule-based engine. The experimental results indicated that (i) accuracy of the deposited bead width is controlled in 0.5 mm, (ii) accumulation effect of the bead height deviations has disappeared when multiple layers are overlapped, and (iii) the surface finish of each layer was controlled to be flat as well.
KW - Active vision sensing
KW - Bead geometry control
KW - Multi-layer multi-bead structure
KW - Wire and arc additive manufacturing
UR - https://www.scopus.com/pages/publications/85099864093
U2 - 10.1007/978-981-10-5355-9_7
DO - 10.1007/978-981-10-5355-9_7
M3 - 章节
AN - SCOPUS:85099864093
T3 - Transactions on Intelligent Welding Manufacturing
SP - 85
EP - 93
BT - Transactions on Intelligent Welding Manufacturing
PB - Springer
ER -