Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application

The pulse wave (PW) mode is an excellent replacement for continuous wave (CW) mode f laser welding in the tailor-welded blank (TWB) application for the automotive ndustry. Due to its ability to produce higher peak power in low power laser pulse mode, he weld penetration and high weld quality can be...

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Principais autores: M. N. M., Salleh, M., Ishak, M. H., Aiman, M. M., Quazi, A. M., Hanafi
Formato: Artigo
Idioma:English
Publicado em: Universiti Malaysia Pahang 2019
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Acesso em linha:http://umpir.ump.edu.my/id/eprint/27423/1/Weld%20Geometry%20Investigation%20onDissimilar.pdf
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author M. N. M., Salleh
M., Ishak
M. H., Aiman
M. M., Quazi
A. M., Hanafi
author_facet M. N. M., Salleh
M., Ishak
M. H., Aiman
M. M., Quazi
A. M., Hanafi
author_sort M. N. M., Salleh
collection UMP
description The pulse wave (PW) mode is an excellent replacement for continuous wave (CW) mode f laser welding in the tailor-welded blank (TWB) application for the automotive ndustry. Due to its ability to produce higher peak power in low power laser pulse mode, he weld penetration and high weld quality can be achieved similarly to the utilization of very high power laser of CW mode. This present work was carried out to investigate the ffect of pulse laser welding parameters of a dissimilar thickness of boron steel for the TWB application. Low power fibre laser with 200 W average power was chosen in this xperimental work. Response surface method (RSM) was used for the design of xperiment (DOE) by applying Box-behnken design (BBD) since there were three rocess factors involved. The process factors are peak power (PP), welding speed (WS) nd focal position (FP) and tensile strength is the response for the weld joint. The metallurgical analysis was conducted at the cross section of sample possessing highest nd lowest tensile strength. Boron steel was successfully welded by using low power fibre aser with PW mode in butt joint configuration. It was found that the highest tensile trength possessed fracture located at the base metal, which is convincing the strength of he joint. For microstructure, finer grain produced at the centre of the fusion zone (FZ) ompared to the FZ near the transition line which produced coarser and medium grain. Finer grain size in FZ contributes to the higher microhardness value and tensile strength f the joint compared to the BM region.
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spelling UMPir274232020-02-03T04:43:45Z http://umpir.ump.edu.my/id/eprint/27423/ Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application M. N. M., Salleh M., Ishak M. H., Aiman M. M., Quazi A. M., Hanafi TJ Mechanical engineering and machinery The pulse wave (PW) mode is an excellent replacement for continuous wave (CW) mode f laser welding in the tailor-welded blank (TWB) application for the automotive ndustry. Due to its ability to produce higher peak power in low power laser pulse mode, he weld penetration and high weld quality can be achieved similarly to the utilization of very high power laser of CW mode. This present work was carried out to investigate the ffect of pulse laser welding parameters of a dissimilar thickness of boron steel for the TWB application. Low power fibre laser with 200 W average power was chosen in this xperimental work. Response surface method (RSM) was used for the design of xperiment (DOE) by applying Box-behnken design (BBD) since there were three rocess factors involved. The process factors are peak power (PP), welding speed (WS) nd focal position (FP) and tensile strength is the response for the weld joint. The metallurgical analysis was conducted at the cross section of sample possessing highest nd lowest tensile strength. Boron steel was successfully welded by using low power fibre aser with PW mode in butt joint configuration. It was found that the highest tensile trength possessed fracture located at the base metal, which is convincing the strength of he joint. For microstructure, finer grain produced at the centre of the fusion zone (FZ) ompared to the FZ near the transition line which produced coarser and medium grain. Finer grain size in FZ contributes to the higher microhardness value and tensile strength f the joint compared to the BM region. Universiti Malaysia Pahang 2019 Article PeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/27423/1/Weld%20Geometry%20Investigation%20onDissimilar.pdf M. N. M., Salleh and M., Ishak and M. H., Aiman and M. M., Quazi and A. M., Hanafi (2019) Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application. International Journal of Automotive and Mechanical Engineering (IJAME), 16 (4). pp. 7364-7374. ISSN 1985-9325(Print); 2180-1606 (Online). (Published) https://doi.org/10.15282/ijame.16.4.2019.12.0546 https://doi.org/10.15282/ijame.16.4.2019.12.0546
spellingShingle TJ Mechanical engineering and machinery
M. N. M., Salleh
M., Ishak
M. H., Aiman
M. M., Quazi
A. M., Hanafi
Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application
title Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application
title_full Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application
title_fullStr Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application
title_full_unstemmed Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application
title_short Weld Geometry Investigation on Dissimilar Boron Steel Laser Welded for TWB Application
title_sort weld geometry investigation on dissimilar boron steel laser welded for twb application
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/27423/1/Weld%20Geometry%20Investigation%20onDissimilar.pdf
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AT mishak weldgeometryinvestigationondissimilarboronsteellaserweldedfortwbapplication
AT mhaiman weldgeometryinvestigationondissimilarboronsteellaserweldedfortwbapplication
AT mmquazi weldgeometryinvestigationondissimilarboronsteellaserweldedfortwbapplication
AT amhanafi weldgeometryinvestigationondissimilarboronsteellaserweldedfortwbapplication