On FSW keyhole removal to improve volume defect using pin less tool

Kush P. Mehta; Rahul Patel

doi:10.4028/www.scientific.net/KEM.821.215

On FSW keyhole removal to improve volume defect using pin less tool

Kush P. Mehta^*, Rahul Patel

^*Corresponding author for this work

Research output: Contribution to journal › Conference Contribution › peer-review

12 Citations (Scopus)

Abstract

Friction stir welding (FSW) consists formation of keyhole at the end phase of the process, which is major defect and needs to be removed. In the present investigation, keyhole of dissimilar friction stir welded Al-Mg joint was repaired by novel technique of pin less tool friction stir repairing. Two different pin less tools having different tool diameters were applied to repair keyhole. Visual inspection, macro structural analysis, microstructure features and mechanical properties are assessed in order to check the successful prevail over of keyhole defect. The results revealed that, keyhole of dissimilar friction stir weld of Al-Mg joint was effectively repaired by pin less tool friction stir repairing. Excellent material mixing was obtained in the repaired area of keyhole. Tensile strength was obtained as 159 MPa that was higher than the dissimilar Al-Mg FSW joint.

Original language	English
Pages (from-to)	215-221
Number of pages	7
Journal	Key Engineering Materials
Volume	821
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.821.215
Publication status	Published - 11 Sept 2019
Externally published	Yes
Event	9th International Conference on Key Engineering Materials, ICKEM 2019 - Oxford, United Kingdom Duration: 29 Mar 2019 → 1 Apr 2019

Keywords

friction stir welding
keyhole
pin less tool
properties
repairing

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10.4028/www.scientific.net/KEM.821.215

Cite this

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title = "On FSW keyhole removal to improve volume defect using pin less tool",

abstract = "Friction stir welding (FSW) consists formation of keyhole at the end phase of the process, which is major defect and needs to be removed. In the present investigation, keyhole of dissimilar friction stir welded Al-Mg joint was repaired by novel technique of pin less tool friction stir repairing. Two different pin less tools having different tool diameters were applied to repair keyhole. Visual inspection, macro structural analysis, microstructure features and mechanical properties are assessed in order to check the successful prevail over of keyhole defect. The results revealed that, keyhole of dissimilar friction stir weld of Al-Mg joint was effectively repaired by pin less tool friction stir repairing. Excellent material mixing was obtained in the repaired area of keyhole. Tensile strength was obtained as 159 MPa that was higher than the dissimilar Al-Mg FSW joint.",

keywords = "friction stir welding, keyhole, pin less tool, properties, repairing",

author = "Mehta, {Kush P.} and Rahul Patel",

year = "2019",

month = sep,

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doi = "10.4028/www.scientific.net/KEM.821.215",

language = "English",

volume = "821",

pages = "215--221",

journal = "Key Engineering Materials",

issn = "1013-9826",

note = "9th International Conference on Key Engineering Materials, ICKEM 2019 ; Conference date: 29-03-2019 Through 01-04-2019",

}

TY - JOUR

T1 - On FSW keyhole removal to improve volume defect using pin less tool

AU - Mehta, Kush P.

AU - Patel, Rahul

PY - 2019/9/11

Y1 - 2019/9/11

N2 - Friction stir welding (FSW) consists formation of keyhole at the end phase of the process, which is major defect and needs to be removed. In the present investigation, keyhole of dissimilar friction stir welded Al-Mg joint was repaired by novel technique of pin less tool friction stir repairing. Two different pin less tools having different tool diameters were applied to repair keyhole. Visual inspection, macro structural analysis, microstructure features and mechanical properties are assessed in order to check the successful prevail over of keyhole defect. The results revealed that, keyhole of dissimilar friction stir weld of Al-Mg joint was effectively repaired by pin less tool friction stir repairing. Excellent material mixing was obtained in the repaired area of keyhole. Tensile strength was obtained as 159 MPa that was higher than the dissimilar Al-Mg FSW joint.

AB - Friction stir welding (FSW) consists formation of keyhole at the end phase of the process, which is major defect and needs to be removed. In the present investigation, keyhole of dissimilar friction stir welded Al-Mg joint was repaired by novel technique of pin less tool friction stir repairing. Two different pin less tools having different tool diameters were applied to repair keyhole. Visual inspection, macro structural analysis, microstructure features and mechanical properties are assessed in order to check the successful prevail over of keyhole defect. The results revealed that, keyhole of dissimilar friction stir weld of Al-Mg joint was effectively repaired by pin less tool friction stir repairing. Excellent material mixing was obtained in the repaired area of keyhole. Tensile strength was obtained as 159 MPa that was higher than the dissimilar Al-Mg FSW joint.

KW - friction stir welding

KW - keyhole

KW - pin less tool

KW - properties

KW - repairing

U2 - 10.4028/www.scientific.net/KEM.821.215

DO - 10.4028/www.scientific.net/KEM.821.215

M3 - Conference Contribution

AN - SCOPUS:85079831211

SN - 1013-9826

VL - 821

SP - 215

EP - 221

JO - Key Engineering Materials

JF - Key Engineering Materials

T2 - 9th International Conference on Key Engineering Materials, ICKEM 2019

Y2 - 29 March 2019 through 1 April 2019

ER -

On FSW keyhole removal to improve volume defect using pin less tool

Abstract

Keywords

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