Towards advanced welding methods for the ITER vacuum vessel sectors

L. Jones (Corresponding Author), P. Aubert, F. Coste, H. Handroos, Tommi Jokinen, Veli Kujanpää, P. Meja, K. Nightingale, W. Wykes

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)

Abstract

The problem of joining the International Thermonuclear Experimental Reactor (ITER) vacuum vessel (VV) sectors, considering the tolerance requirements of the blanket attachments, and the time required for TIG welding, continues to stimulate EU R&D into power beam welding techniques which can yield fewer passes, less welding time and lower distortion. The previous work on reduced pressure e-beam welding showed that penetration varied with position, fit-up, distance and pressure and single-pass weld control was deemed to be not reliable enough so the work direction changed to an all-e-beam welding procedure where the root weld is carried out with rest-current-control and the fill passes by wire-fill. In addition, a novel method of increasing the possible single-pass weld thickness for overhead positions is investigated demonstrated and now patented. Another solution may be offered with wire-fill NdYAG laser welding, which has demonstrated useable and stable results and proved improved performance over TIG. Preliminary work has shown even further advantages with the introduction of hybrid MIG/Laser welding.
Original languageEnglish
Pages (from-to)215-220
Number of pages6
JournalFusion Engineering and Design
Volume69
Issue number1-4
DOIs
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed

Fingerprint

Experimental reactors
Welding
Vacuum
Welds
Laser beam welding
Wire
Electric current control
Joining

Keywords

  • welding

Cite this

Jones, L., Aubert, P., Coste, F., Handroos, H., Jokinen, T., Kujanpää, V., ... Wykes, W. (2003). Towards advanced welding methods for the ITER vacuum vessel sectors. Fusion Engineering and Design, 69(1-4), 215-220. https://doi.org/10.1016/S0920-3796(03)00341-7
Jones, L. ; Aubert, P. ; Coste, F. ; Handroos, H. ; Jokinen, Tommi ; Kujanpää, Veli ; Meja, P. ; Nightingale, K. ; Wykes, W. / Towards advanced welding methods for the ITER vacuum vessel sectors. In: Fusion Engineering and Design. 2003 ; Vol. 69, No. 1-4. pp. 215-220.
@article{5cad45a4ad5a45928ec803ccda145274,
title = "Towards advanced welding methods for the ITER vacuum vessel sectors",
abstract = "The problem of joining the International Thermonuclear Experimental Reactor (ITER) vacuum vessel (VV) sectors, considering the tolerance requirements of the blanket attachments, and the time required for TIG welding, continues to stimulate EU R&D into power beam welding techniques which can yield fewer passes, less welding time and lower distortion. The previous work on reduced pressure e-beam welding showed that penetration varied with position, fit-up, distance and pressure and single-pass weld control was deemed to be not reliable enough so the work direction changed to an all-e-beam welding procedure where the root weld is carried out with rest-current-control and the fill passes by wire-fill. In addition, a novel method of increasing the possible single-pass weld thickness for overhead positions is investigated demonstrated and now patented. Another solution may be offered with wire-fill NdYAG laser welding, which has demonstrated useable and stable results and proved improved performance over TIG. Preliminary work has shown even further advantages with the introduction of hybrid MIG/Laser welding.",
keywords = "welding",
author = "L. Jones and P. Aubert and F. Coste and H. Handroos and Tommi Jokinen and Veli Kujanp{\"a}{\"a} and P. Meja and K. Nightingale and W. Wykes",
year = "2003",
doi = "10.1016/S0920-3796(03)00341-7",
language = "English",
volume = "69",
pages = "215--220",
journal = "Fusion Engineering and Design",
issn = "0920-3796",
publisher = "Elsevier",
number = "1-4",

}

Jones, L, Aubert, P, Coste, F, Handroos, H, Jokinen, T, Kujanpää, V, Meja, P, Nightingale, K & Wykes, W 2003, 'Towards advanced welding methods for the ITER vacuum vessel sectors', Fusion Engineering and Design, vol. 69, no. 1-4, pp. 215-220. https://doi.org/10.1016/S0920-3796(03)00341-7

Towards advanced welding methods for the ITER vacuum vessel sectors. / Jones, L. (Corresponding Author); Aubert, P.; Coste, F.; Handroos, H.; Jokinen, Tommi; Kujanpää, Veli; Meja, P.; Nightingale, K.; Wykes, W.

In: Fusion Engineering and Design, Vol. 69, No. 1-4, 2003, p. 215-220.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Towards advanced welding methods for the ITER vacuum vessel sectors

AU - Jones, L.

AU - Aubert, P.

AU - Coste, F.

AU - Handroos, H.

AU - Jokinen, Tommi

AU - Kujanpää, Veli

AU - Meja, P.

AU - Nightingale, K.

AU - Wykes, W.

PY - 2003

Y1 - 2003

N2 - The problem of joining the International Thermonuclear Experimental Reactor (ITER) vacuum vessel (VV) sectors, considering the tolerance requirements of the blanket attachments, and the time required for TIG welding, continues to stimulate EU R&D into power beam welding techniques which can yield fewer passes, less welding time and lower distortion. The previous work on reduced pressure e-beam welding showed that penetration varied with position, fit-up, distance and pressure and single-pass weld control was deemed to be not reliable enough so the work direction changed to an all-e-beam welding procedure where the root weld is carried out with rest-current-control and the fill passes by wire-fill. In addition, a novel method of increasing the possible single-pass weld thickness for overhead positions is investigated demonstrated and now patented. Another solution may be offered with wire-fill NdYAG laser welding, which has demonstrated useable and stable results and proved improved performance over TIG. Preliminary work has shown even further advantages with the introduction of hybrid MIG/Laser welding.

AB - The problem of joining the International Thermonuclear Experimental Reactor (ITER) vacuum vessel (VV) sectors, considering the tolerance requirements of the blanket attachments, and the time required for TIG welding, continues to stimulate EU R&D into power beam welding techniques which can yield fewer passes, less welding time and lower distortion. The previous work on reduced pressure e-beam welding showed that penetration varied with position, fit-up, distance and pressure and single-pass weld control was deemed to be not reliable enough so the work direction changed to an all-e-beam welding procedure where the root weld is carried out with rest-current-control and the fill passes by wire-fill. In addition, a novel method of increasing the possible single-pass weld thickness for overhead positions is investigated demonstrated and now patented. Another solution may be offered with wire-fill NdYAG laser welding, which has demonstrated useable and stable results and proved improved performance over TIG. Preliminary work has shown even further advantages with the introduction of hybrid MIG/Laser welding.

KW - welding

U2 - 10.1016/S0920-3796(03)00341-7

DO - 10.1016/S0920-3796(03)00341-7

M3 - Article

VL - 69

SP - 215

EP - 220

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

SN - 0920-3796

IS - 1-4

ER -

Jones L, Aubert P, Coste F, Handroos H, Jokinen T, Kujanpää V et al. Towards advanced welding methods for the ITER vacuum vessel sectors. Fusion Engineering and Design. 2003;69(1-4):215-220. https://doi.org/10.1016/S0920-3796(03)00341-7