Experimental investigation of longitudinal and transverse welds during sideways extrusion

X. Lu; J. Yu; Victoria A. Yardley; Z. Wu; H. Liu; Z. Shi; Jianguo Lin

doi:10.1088/1757-899X/1270/1/012091

Experimental investigation of longitudinal and transverse welds during sideways extrusion

X. Lu
, J. Yu
, Victoria A. Yardley
, Z. Wu
, H. Liu
, Z. Shi (Corresponding Author)
, Jianguo Lin

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

Differential velocity sideways extrusion (DVSE) is a novel process for fabricating curved profiles; welding quality during extrusion is an important issue for its industrial application. In this study, solid bars of aluminium alloy AA1070 were extruded from multiple billets at 500 °C using the novel process and the microstructure and mechanical properties of the extrudate were investigated. The weld formed between the billets includes longitudinal and transverse solid-state weld regions formed as the metal was extruded. The longitudinal welds have better mechanical properties than the transverse welds. Dynamic recrystallisation (DRX) occurred in areas with high dislocation density during the extrusion process and as a result, grains across the bonding interfaces of longitudinal welds have been formed, which improves the weld quality. In the areas with the transverse welds, macro weld defects can be observed at the weld front. With further progress of sideways extrusion, the defect density reduced and new grains formed at the bonding surface.

Original language	English
Title of host publication	Proceedings of The 19th International Conference on Metal Forming
Number of pages	7
Volume	1270
DOIs	https://doi.org/10.1088/1757-899X/1270/1/012091
Publication status	Published - Sept 2022
Externally published	Yes
Event	The 19th International Conference on Metal Forming - Taiyuan, Shanxi, Taiyuan, Shanxi, China Duration: 11 Sept 2022 → 14 Sept 2022 https://metalforming2022.aconf.org/

Publication series

Name	IOP Conference Series: Materials Science and Engineering
Publisher	IOP Publishing Ltd.
ISSN (Print)	1757-8981

Conference

Conference	The 19th International Conference on Metal Forming
Abbreviated title	MF2022
Country/Territory	China
City	Taiyuan, Shanxi
Period	11/09/22 → 14/09/22
Internet address	https://metalforming2022.aconf.org/

Keywords

differential velocity sideways extrusion
weld seam
welding quality
aluminium alloy

More information

10.1088/1757-899X/1270/1/012091

Cite this

Lu, X., Yu, J., Yardley, V. A., Wu, Z., Liu, H., Shi, Z., & Lin, J. (2022). Experimental investigation of longitudinal and transverse welds during sideways extrusion. In Proceedings of The 19th International Conference on Metal Forming (Vol. 1270). Article 012091 (IOP Conference Series: Materials Science and Engineering). https://doi.org/10.1088/1757-899X/1270/1/012091

@inproceedings{cfc65c1c4a484b0a884da2006770f0ce,

title = "Experimental investigation of longitudinal and transverse welds during sideways extrusion",

abstract = "Differential velocity sideways extrusion (DVSE) is a novel process for fabricating curved profiles; welding quality during extrusion is an important issue for its industrial application. In this study, solid bars of aluminium alloy AA1070 were extruded from multiple billets at 500 °C using the novel process and the microstructure and mechanical properties of the extrudate were investigated. The weld formed between the billets includes longitudinal and transverse solid-state weld regions formed as the metal was extruded. The longitudinal welds have better mechanical properties than the transverse welds. Dynamic recrystallisation (DRX) occurred in areas with high dislocation density during the extrusion process and as a result, grains across the bonding interfaces of longitudinal welds have been formed, which improves the weld quality. In the areas with the transverse welds, macro weld defects can be observed at the weld front. With further progress of sideways extrusion, the defect density reduced and new grains formed at the bonding surface. ",

keywords = "differential velocity sideways extrusion, weld seam, welding quality, aluminium alloy",

author = "X. Lu and J. Yu and Yardley, \{Victoria A.\} and Z. Wu and H. Liu and Z. Shi and Jianguo Lin",

note = "Publisher Copyright: Published under licence by IOP Publishing Ltd ; The 19th International Conference on Metal Forming, MF2022 ; Conference date: 11-09-2022 Through 14-09-2022",

year = "2022",

month = sep,

doi = "10.1088/1757-899X/1270/1/012091",

language = "English",

volume = "1270",

series = "IOP Conference Series: Materials Science and Engineering",

publisher = "IOP Publishing Ltd.",

booktitle = "Proceedings of The 19th International Conference on Metal Forming",

url = "https://metalforming2022.aconf.org/",

}

Lu, X, Yu, J, Yardley, VA, Wu, Z, Liu, H, Shi, Z & Lin, J 2022, Experimental investigation of longitudinal and transverse welds during sideways extrusion. in Proceedings of The 19th International Conference on Metal Forming. vol. 1270, 012091, IOP Conference Series: Materials Science and Engineering, The 19th International Conference on Metal Forming, Taiyuan, Shanxi, China, 11/09/22. https://doi.org/10.1088/1757-899X/1270/1/012091

Experimental investigation of longitudinal and transverse welds during sideways extrusion. / Lu, X.; Yu, J.; Yardley, Victoria A. et al.
Proceedings of The 19th International Conference on Metal Forming. Vol. 1270 2022. 012091 (IOP Conference Series: Materials Science and Engineering).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Experimental investigation of longitudinal and transverse welds during sideways extrusion

AU - Lu, X.

AU - Yu, J.

AU - Yardley, Victoria A.

AU - Wu, Z.

AU - Liu, H.

AU - Shi, Z.

AU - Lin, Jianguo

N1 - Publisher Copyright: Published under licence by IOP Publishing Ltd

PY - 2022/9

Y1 - 2022/9

N2 - Differential velocity sideways extrusion (DVSE) is a novel process for fabricating curved profiles; welding quality during extrusion is an important issue for its industrial application. In this study, solid bars of aluminium alloy AA1070 were extruded from multiple billets at 500 °C using the novel process and the microstructure and mechanical properties of the extrudate were investigated. The weld formed between the billets includes longitudinal and transverse solid-state weld regions formed as the metal was extruded. The longitudinal welds have better mechanical properties than the transverse welds. Dynamic recrystallisation (DRX) occurred in areas with high dislocation density during the extrusion process and as a result, grains across the bonding interfaces of longitudinal welds have been formed, which improves the weld quality. In the areas with the transverse welds, macro weld defects can be observed at the weld front. With further progress of sideways extrusion, the defect density reduced and new grains formed at the bonding surface.

AB - Differential velocity sideways extrusion (DVSE) is a novel process for fabricating curved profiles; welding quality during extrusion is an important issue for its industrial application. In this study, solid bars of aluminium alloy AA1070 were extruded from multiple billets at 500 °C using the novel process and the microstructure and mechanical properties of the extrudate were investigated. The weld formed between the billets includes longitudinal and transverse solid-state weld regions formed as the metal was extruded. The longitudinal welds have better mechanical properties than the transverse welds. Dynamic recrystallisation (DRX) occurred in areas with high dislocation density during the extrusion process and as a result, grains across the bonding interfaces of longitudinal welds have been formed, which improves the weld quality. In the areas with the transverse welds, macro weld defects can be observed at the weld front. With further progress of sideways extrusion, the defect density reduced and new grains formed at the bonding surface.

KW - differential velocity sideways extrusion

KW - weld seam

KW - welding quality

KW - aluminium alloy

U2 - 10.1088/1757-899X/1270/1/012091

DO - 10.1088/1757-899X/1270/1/012091

M3 - Conference article published in proceeding or book

VL - 1270

T3 - IOP Conference Series: Materials Science and Engineering

BT - Proceedings of The 19th International Conference on Metal Forming

T2 - The 19th International Conference on Metal Forming

Y2 - 11 September 2022 through 14 September 2022

ER -

Experimental investigation of longitudinal and transverse welds during sideways extrusion

Abstract

Publication series

Conference

Keywords

More information

Fingerprint

Cite this