Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Enhancing interfacial bonding in friction stir lap welding of light metal and carbon fiber reinforced polymer composite
AU - Wang, S.
AU - Xu, Y.
AU - Wang, W.
AU - Tian, Y.
AU - Zhang, X.
AU - Huang, H.
AU - Zheng, D.
PY - 2022/11/30
Y1 - 2022/11/30
N2 - The key strategic technology of automotive lightweight design advances the development of light metal/carbon fiber reinforced polymer composite hybrid joining. In this work, Al alloy (AA6061) and carbon fiber reinforced polyamide 66 (CF-PA66) were joined using friction stir lap welding (FSLW) technique with laser ablation pretreatment. The enhancing interfacial bonding mechanism and failure analysis of hybrid joints were investigated in detail. The maximum tensile-shear strength reached 24.48 MPa based on the bonding mechanism including macro/micro/nano-mechanical interlocking and chemical bonding, increasing by approximately 600 % compared with FSLW joints without surface pretreatment. Fracture located at weak interfaces between metal and composite without laser-textures and mixing region of resin and carbon fibers. This study provides novel insights into material-process-structure integrated lightweight design and benefits future research in the processes to enhance metal/composite hybrid structures.
AB - The key strategic technology of automotive lightweight design advances the development of light metal/carbon fiber reinforced polymer composite hybrid joining. In this work, Al alloy (AA6061) and carbon fiber reinforced polyamide 66 (CF-PA66) were joined using friction stir lap welding (FSLW) technique with laser ablation pretreatment. The enhancing interfacial bonding mechanism and failure analysis of hybrid joints were investigated in detail. The maximum tensile-shear strength reached 24.48 MPa based on the bonding mechanism including macro/micro/nano-mechanical interlocking and chemical bonding, increasing by approximately 600 % compared with FSLW joints without surface pretreatment. Fracture located at weak interfaces between metal and composite without laser-textures and mixing region of resin and carbon fibers. This study provides novel insights into material-process-structure integrated lightweight design and benefits future research in the processes to enhance metal/composite hybrid structures.
KW - Carbon fiber reinforced polymer (CFRP)
KW - Chemical bonding
KW - Friction stir lap welding (FSLW)
KW - Laser ablation
KW - Mechanical interlocking
U2 - 10.1016/j.jmapro.2022.09.038
DO - 10.1016/j.jmapro.2022.09.038
M3 - Journal article
VL - 83
SP - 729
EP - 741
JO - Journal of Manufacturing Processes
JF - Journal of Manufacturing Processes
SN - 1526-6125
ER -