Robust process-controller for Nd:YAG welding

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

71 Downloads (Pure)

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 languageUndefined
Title of host publicationProceedings 24th International Congress on Applications of Lasers & Electro-Optics 2005 (ICALEO '05), 31 October - 3 Nov 2005, Miami, USA
EditorsA Ostendorf, A. Hoult, Y. Lu
Place of PublicationMiami, USA
PublisherLIA
Pages862-868
Number of pages7
ISBN (Print)0-912035-82-X
Publication statusPublished - 31 Oct 2005
Event24th International Congress on Applications of Lasers & Electro-Optics, ICALEO 2005 - Miami, United States
Duration: 31 Oct 20053 Nov 2005
Conference number: 24

Publication series

Name
PublisherLIA

Conference

Conference24th International Congress on Applications of Lasers & Electro-Optics, ICALEO 2005
Abbreviated titleICALEO
CountryUnited States
CityMiami
Period31/10/053/11/05

Keywords

  • IR-52897
  • METIS-224872

Cite this

de Graaf, M. W., Olde Benneker, J., Aarts, R. G. K. M., Meijer, J., & Jonker, J. B. (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 (pp. 862-868). Miami, USA: LIA.
de Graaf, M.W. ; Olde Benneker, Jeroen ; Aarts, Ronald G.K.M. ; Meijer, J. ; Jonker, Jan B. / Robust process-controller for Nd:YAG welding. Proceedings 24th International Congress on Applications of Lasers & Electro-Optics 2005 (ICALEO '05), 31 October - 3 Nov 2005, Miami, USA. editor / A Ostendorf ; A. Hoult ; Y. Lu. Miami, USA : LIA, 2005. pp. 862-868
@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 = "10",
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",

}

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, United States, 31/10/05.

Robust process-controller for Nd:YAG welding. / de Graaf, M.W.; Olde Benneker, Jeroen; Aarts, Ronald G.K.M.; Meijer, J.; Jonker, Jan B.

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 proceedingConference contributionAcademic

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.

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

ER -

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