Robust process-controller for Nd:YAG welding

M.W. de Graaf; Jeroen Olde Benneker; Ronald G.K.M. Aarts; J. Meijer; Jan B. Jonker

Robust process-controller for Nd:YAG welding

M.W. de Graaf, Jeroen Olde Benneker, Ronald G.K.M. Aarts, J. Meijer, Jan B. Jonker

Faculty of Engineering Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

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Abstract

A robust process-controller was developed which maintains a fully penetrated weld. This feedback-controller is robust for various process disturbances that may occur, like variations in sheet thickness, welding velocity, focal position, shielding gas variations, etc. The signals from an optical sensor are used to design a so-called "switching" controller, which enables fully penetrated welding at a minimum amount of laser power. It is shown that the working principle of the controller is applicable to different material types, more specific different steels and stainless steels. Experiments have been carried out to show the ability to cope with varying sheet thickness and welding velocity on FeP04 mild steel. Furthermore a method is described which can be used to easily find a good set of control parameters from a single identification experiment.

Original language	Undefined
Title of host publication	Proceedings 24th International Congress on Applications of Lasers & Electro-Optics 2005 (ICALEO '05), 31 October - 3 Nov 2005, Miami, USA
Editors	A Ostendorf, A. Hoult, Y. Lu
Place of Publication	Miami, USA
Publisher	LIA
Pages	862-868
Number of pages	7
ISBN (Print)	0-912035-82-X
Publication status	Published - 31 Oct 2005
Event	24th International Congress on Applications of Lasers & Electro-Optics, ICALEO 2005 - Miami, United States Duration: 31 Oct 2005 → 3 Nov 2005 Conference number: 24

Publication series

Name
Publisher	LIA

Conference

Conference	24th International Congress on Applications of Lasers & Electro-Optics, ICALEO 2005
Abbreviated title	ICALEO
Country/Territory	United States
City	Miami
Period	31/10/05 → 3/11/05

Keywords

IR-52897
METIS-224872

Access to Document

Wa1009

Cite this

@inproceedings{ae1a94e6eda8440a8747c887af385456,

title = "Robust process-controller for Nd:YAG welding",

abstract = "A robust process-controller was developed which maintains a fully penetrated weld. This feedback-controller is robust for various process disturbances that may occur, like variations in sheet thickness, welding velocity, focal position, shielding gas variations, etc. The signals from an optical sensor are used to design a so-called {"}switching{"} controller, which enables fully penetrated welding at a minimum amount of laser power. It is shown that the working principle of the controller is applicable to different material types, more specific different steels and stainless steels. Experiments have been carried out to show the ability to cope with varying sheet thickness and welding velocity on FeP04 mild steel. Furthermore a method is described which can be used to easily find a good set of control parameters from a single identification experiment.",

keywords = "IR-52897, METIS-224872",

author = "\{de Graaf\}, M.W. and \{Olde Benneker\}, Jeroen and Aarts, \{Ronald G.K.M.\} and J. Meijer and Jonker, \{Jan B.\}",

year = "2005",

month = oct,

day = "31",

language = "Undefined",

isbn = "0-912035-82-X",

publisher = "LIA",

pages = "862--868",

editor = "A Ostendorf and A. Hoult and Y. Lu",

booktitle = "Proceedings 24th International Congress on Applications of Lasers \& Electro-Optics 2005 (ICALEO '05), 31 October - 3 Nov 2005, Miami, USA",

note = "24th International Congress on Applications of Lasers \& Electro-Optics, ICALEO 2005 ; Conference date: 31-10-2005 Through 03-11-2005",

}

de Graaf, MW, Olde Benneker, J, Aarts, RGKM, Meijer, J & Jonker, JB 2005, Robust process-controller for Nd:YAG welding. in A Ostendorf, A Hoult & Y Lu (eds), Proceedings 24th International Congress on Applications of Lasers & Electro-Optics 2005 (ICALEO '05), 31 October - 3 Nov 2005, Miami, USA. LIA, Miami, USA, pp. 862-868, 24th International Congress on Applications of Lasers & Electro-Optics, ICALEO 2005, Miami, Florida, United States, 31/10/05.

Robust process-controller for Nd:YAG welding. / de Graaf, M.W.; Olde Benneker, Jeroen; Aarts, Ronald G.K.M. et al.
Proceedings 24th International Congress on Applications of Lasers & Electro-Optics 2005 (ICALEO '05), 31 October - 3 Nov 2005, Miami, USA. ed. / A Ostendorf; A. Hoult; Y. Lu. Miami, USA: LIA, 2005. p. 862-868.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - Robust process-controller for Nd:YAG welding

AU - de Graaf, M.W.

AU - Olde Benneker, Jeroen

AU - Aarts, Ronald G.K.M.

AU - Meijer, J.

AU - Jonker, Jan B.

N1 - Conference code: 24

PY - 2005/10/31

Y1 - 2005/10/31

N2 - A robust process-controller was developed which maintains a fully penetrated weld. This feedback-controller is robust for various process disturbances that may occur, like variations in sheet thickness, welding velocity, focal position, shielding gas variations, etc. The signals from an optical sensor are used to design a so-called "switching" controller, which enables fully penetrated welding at a minimum amount of laser power. It is shown that the working principle of the controller is applicable to different material types, more specific different steels and stainless steels. Experiments have been carried out to show the ability to cope with varying sheet thickness and welding velocity on FeP04 mild steel. Furthermore a method is described which can be used to easily find a good set of control parameters from a single identification experiment.

AB - A robust process-controller was developed which maintains a fully penetrated weld. This feedback-controller is robust for various process disturbances that may occur, like variations in sheet thickness, welding velocity, focal position, shielding gas variations, etc. The signals from an optical sensor are used to design a so-called "switching" controller, which enables fully penetrated welding at a minimum amount of laser power. It is shown that the working principle of the controller is applicable to different material types, more specific different steels and stainless steels. Experiments have been carried out to show the ability to cope with varying sheet thickness and welding velocity on FeP04 mild steel. Furthermore a method is described which can be used to easily find a good set of control parameters from a single identification experiment.

KW - IR-52897

KW - METIS-224872

M3 - Conference contribution

SN - 0-912035-82-X

SP - 862

EP - 868

BT - Proceedings 24th International Congress on Applications of Lasers & Electro-Optics 2005 (ICALEO '05), 31 October - 3 Nov 2005, Miami, USA

A2 - Ostendorf, A

A2 - Hoult, A.

A2 - Lu, Y.

PB - LIA

CY - Miami, USA

T2 - 24th International Congress on Applications of Lasers & Electro-Optics, ICALEO 2005

Y2 - 31 October 2005 through 3 November 2005

ER -