Investigation on hybrid joining of aluminum alloy sheets: magnetic pulse weld bonding

Peng, Dingchen; Liu, Quanxiaoxiao; Li, Guangyao; Cui, Junjia

doi:10.1007/s00170-019-04215-x

Cited by 16 publications

(1 citation statement)

References 30 publications

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“…Figure 4 shows the maximum joint strength of aluminum-tosuperwood (7.6 MPa) achieved in this investigation, in comparison with the maximum strengths reported in literature for aluminum-to-aluminum [25][26][27] and natural wood-to-wood [28] joints and to tests done on superwood-to-superwood bonding of samples using the same adhesive as the superwood-to-aluminum. The adhesive joint strength of natural wood was between 2 and 5 MPa depending on surface roughness, with surface roughness of 1.2 to 1.7 µm producing the best results [25].…”

Section: Joint Strengthmentioning

confidence: 58%

Dissimilar material joining of densified superwood to aluminum by adhesive bonding

Hartsfield,

Chen,

Liu

et al. 2024

Int J Adv Manuf Technol

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Superwood is a densified wood product that shows promise as a lightweight and renewable alternative for metallic materials. In order for this high-performance new material to be used in multi-material products, it must be able to be joined with other major materials. For example, joining superwood to aluminum would provide a key enabling technology for its use in automotive components since aluminum is presently a major lightweight material for such applications. In this paper, a methacrylate-based adhesive has been identified to provide high lap shear strength (7.5 MPa) for aluminum-to-superwood joints. The aluminum-to-superwood samples were prepared with different amounts of pre-polishing to create openings to the pores in the superwood so adhesive could penetrate into them and create a mechanical interlock, in addition to the hydrogen/chemical bonding at the surface between the methyl methacrylate (MMA) in methacrylate-based adhesive and the cellulose in superwood. For aluminum samples, a thin layer (typically a few nanometers) of oxide film on the surfaces provides hydrogen/chemical bond to MMA structure in the adhesive layer. The failure strength of the superwood-to-aluminum joint sample is about 50% higher than that of natural wood to natural wood joint sample and comparable to that of aluminum-to-aluminum joint sample.

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