Abstract
Significant progress has been made on the implementation of friction stir welding (FSW) in the industry for aluminium alloys. However, steel FSW and other high-temperature alloys is still the subject of considerable research, mainly because of the short life and high cost of the FSW tool. Different auxiliary energies have been considered as a means of optimising the FSW process and reducing the forces on the tool during the plunge and traverse stages, but numerical studies on steel are particularly limited. Building on the state-of-art, laser-assisted steel FSW has been numerically developed and analysed as a viable process amendment. Laser-assisted FSW increased the traverse speed up to 1500 mm min −1, significantly higher than conventional steel FSW. The application of laser assistance with a distance of 20 mm from the rotating tool reduced the reaction force on the tool probe tip up to 55% when compared to standard FSW.
| Original language | English |
|---|---|
| Pages (from-to) | 548-558 |
| Number of pages | 11 |
| Journal | Science and Technology of Welding and Joining |
| Volume | 24 |
| Issue number | 6 |
| Early online date | 23 Jan 2019 |
| DOIs | |
| Publication status | Published - 5 Jun 2019 |
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Keywords
- laser-assisted friction stir welding
- finite element modelling
- coupled Eulerian Lagrangian
- DH36
- flash formation
- temperature distribution
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Numerical optimisation of laser assisted friction stir welding of structural steel. / Ahmad, Bilal; Galloway, Alexander; Toumpis, Athanasios.
In: Science and Technology of Welding and Joining, Vol. 24, No. 6, 05.06.2019, p. 548-558.Research output: Contribution to journal › Article
TY - JOUR
T1 - Numerical optimisation of laser assisted friction stir welding of structural steel
AU - Ahmad, Bilal
AU - Galloway, Alexander
AU - Toumpis, Athanasios
PY - 2019/6/5
Y1 - 2019/6/5
N2 - Significant progress has been made on the implementation of friction stir welding (FSW) in the industry for aluminium alloys. However, steel FSW and other high-temperature alloys is still the subject of considerable research, mainly because of the short life and high cost of the FSW tool. Different auxiliary energies have been considered as a means of optimising the FSW process and reducing the forces on the tool during the plunge and traverse stages, but numerical studies on steel are particularly limited. Building on the state-of-art, laser-assisted steel FSW has been numerically developed and analysed as a viable process amendment. Laser-assisted FSW increased the traverse speed up to 1500 mm min −1, significantly higher than conventional steel FSW. The application of laser assistance with a distance of 20 mm from the rotating tool reduced the reaction force on the tool probe tip up to 55% when compared to standard FSW.
AB - Significant progress has been made on the implementation of friction stir welding (FSW) in the industry for aluminium alloys. However, steel FSW and other high-temperature alloys is still the subject of considerable research, mainly because of the short life and high cost of the FSW tool. Different auxiliary energies have been considered as a means of optimising the FSW process and reducing the forces on the tool during the plunge and traverse stages, but numerical studies on steel are particularly limited. Building on the state-of-art, laser-assisted steel FSW has been numerically developed and analysed as a viable process amendment. Laser-assisted FSW increased the traverse speed up to 1500 mm min −1, significantly higher than conventional steel FSW. The application of laser assistance with a distance of 20 mm from the rotating tool reduced the reaction force on the tool probe tip up to 55% when compared to standard FSW.
KW - laser-assisted friction stir welding
KW - finite element modelling
KW - coupled Eulerian Lagrangian
KW - DH36
KW - flash formation
KW - temperature distribution
UR - https://www.tandfonline.com/doi/abs/10.1080/13621718.2019.1570682
U2 - 10.1080/13621718.2019.1570682
DO - 10.1080/13621718.2019.1570682
M3 - Article
VL - 24
SP - 548
EP - 558
JO - Science and Technology of Welding and Joining
JF - Science and Technology of Welding and Joining
SN - 1362-1718
IS - 6
ER -