TY - JOUR
T1 - Repairing of exit-hole in dissimilar Al-Mg friction stir welding: process and microstructural pattern
AU - Mehta, Kush P.
AU - Patel, Rahul
AU - Vyas, Hardik
AU - Memon, Shabbir
AU - Vilaça, Pedro
PY - 2020/1
Y1 - 2020/1
N2 - The exit-hole is one major discontinuities in the friction based processes, where all the volume of the tool’s probe is missing with a depth that corresponds to the full thickness of the processed component. This letter presents a new technique to repair the exit-hole of an Al-Mg friction stir welding, without any third body material with inexpensive probeless tooling, inducing forging, stirring, and thermomechanical consolidation of the local spot joint. Intercalated banned type structures with interpenetrating features were achieved. Composite type mixed structure was obtained at repaired zone with a local tensile strength of 159 MPa.
AB - The exit-hole is one major discontinuities in the friction based processes, where all the volume of the tool’s probe is missing with a depth that corresponds to the full thickness of the processed component. This letter presents a new technique to repair the exit-hole of an Al-Mg friction stir welding, without any third body material with inexpensive probeless tooling, inducing forging, stirring, and thermomechanical consolidation of the local spot joint. Intercalated banned type structures with interpenetrating features were achieved. Composite type mixed structure was obtained at repaired zone with a local tensile strength of 159 MPa.
KW - exit-hole
KW - friction stir welding
KW - microstructure
KW - repairing
KW - welding
UR - https://doi.org/10.1016/j.mfglet.2020.01.002
UR - http://www.scopus.com/inward/record.url?scp=85077751740&partnerID=8YFLogxK
U2 - 10.1016/j.mfglet.2020.01.002
DO - 10.1016/j.mfglet.2020.01.002
M3 - Article
VL - 23
SP - 67
EP - 70
JO - Manufacturing Letters
JF - Manufacturing Letters
SN - 2213-8463
ER -