Modeling and control of quasi-keyhole arc welding process

Y. M. Zhang; Y. C. Liu

doi:10.1016/S0967-0661(03)00076-5

Modeling and control of quasi-keyhole arc welding process

Y. M. Zhang, Y. C. Liu

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

Quasi-keyhole is a novel approach proposed to operate the keyhole arc welding process. Because the method's effectiveness depends on the amperage of the peak current used to establish the keyhole, this paper proposes adjusting the amperage based on the duration of the peak current, which equals the keyhole establishment time. A nominal model structure has been selected from those identified using experimental data and been used in the design of an adaptive predictive control system. Closed-loop control experiments have been conducted to verify the effectiveness of the developed system under varying set-points and varying travel speeds.

Original language	English
Pages (from-to)	1401-1411
Number of pages	11
Journal	Control Engineering Practice
Volume	11
Issue number	12
DOIs	https://doi.org/10.1016/S0967-0661(03)00076-5
State	Published - Dec 2003

Bibliographical note

Funding Information:
This work is funded by the US National Science Foundation under Grant DMI-9812981, US National Shipbuilding Research Program, and the University of Kentucky Manufacturing Center.

Keywords

Manufacturing
Modeling
Predictive control
Welding

ASJC Scopus subject areas

Control and Systems Engineering
Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1016/S0967-0661(03)00076-5

Cite this

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title = "Modeling and control of quasi-keyhole arc welding process",

abstract = "Quasi-keyhole is a novel approach proposed to operate the keyhole arc welding process. Because the method's effectiveness depends on the amperage of the peak current used to establish the keyhole, this paper proposes adjusting the amperage based on the duration of the peak current, which equals the keyhole establishment time. A nominal model structure has been selected from those identified using experimental data and been used in the design of an adaptive predictive control system. Closed-loop control experiments have been conducted to verify the effectiveness of the developed system under varying set-points and varying travel speeds.",

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author = "Zhang, {Y. M.} and Liu, {Y. C.}",

note = "Funding Information: This work is funded by the US National Science Foundation under Grant DMI-9812981, US National Shipbuilding Research Program, and the University of Kentucky Manufacturing Center.",

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AU - Zhang, Y. M.

AU - Liu, Y. C.

N1 - Funding Information: This work is funded by the US National Science Foundation under Grant DMI-9812981, US National Shipbuilding Research Program, and the University of Kentucky Manufacturing Center.

PY - 2003/12

Y1 - 2003/12

N2 - Quasi-keyhole is a novel approach proposed to operate the keyhole arc welding process. Because the method's effectiveness depends on the amperage of the peak current used to establish the keyhole, this paper proposes adjusting the amperage based on the duration of the peak current, which equals the keyhole establishment time. A nominal model structure has been selected from those identified using experimental data and been used in the design of an adaptive predictive control system. Closed-loop control experiments have been conducted to verify the effectiveness of the developed system under varying set-points and varying travel speeds.

AB - Quasi-keyhole is a novel approach proposed to operate the keyhole arc welding process. Because the method's effectiveness depends on the amperage of the peak current used to establish the keyhole, this paper proposes adjusting the amperage based on the duration of the peak current, which equals the keyhole establishment time. A nominal model structure has been selected from those identified using experimental data and been used in the design of an adaptive predictive control system. Closed-loop control experiments have been conducted to verify the effectiveness of the developed system under varying set-points and varying travel speeds.

KW - Manufacturing

KW - Modeling

KW - Predictive control

KW - Welding

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ER -

Modeling and control of quasi-keyhole arc welding process

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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