Effects of Rotational Speed and Processing Time on Bonding Strength of Porous Aluminum and Thermoplastic Resin during Friction Welding

Matsushima, Y.; Hangai, Yoshihiko; Mitsugi, Hironao; Fujii, Hidetoshi

doi:10.2320/jinstmet.j2021048

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Because there are few studies on direct bonding, there is a need for an easier and more productive joining method. Hangai et al have attempted to join porous aluminum fabricated by the sintering and dissolution process (SDP) [22][23][24][25][26] to polycarbonate (PCTA) and acrylic resin plates by friction welding [27][28][29]. Friction welding [30,31] is a simple and productive joining method, which is one of the solid-state welding methods [32][33][34][35], allowing strong joining without melting the material.…”

Section: Introductionmentioning

confidence: 99%

Friction Welding of Polycarbonate Plate and Aluminum Foam Fabricated by Precursor Foaming Process

Hangai,

Yamamoto,

Goto

et al. 2023

Metals

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Aluminum foam is expected to be one of the candidates for lightweight materials for structural components as it is lightweight and has excellent shock absorption and sound absorption properties. However, aluminum foam has low tensile and flexural strength due to its thin cell walls. Therefore, aluminum foam is used by combining with dense materials. In particular, with the recent trend toward multi-materials, research on the combination with lightweight resins is expected. In this study, we attempted to join aluminum foam fabricated by the precursor method to a thermoplastic resin polycarbonate (PCTA) plate by friction welding. It was found that the aluminum foam and PCTA plate can be joined in about 1 min by friction welding, by rotating the aluminum foam at 2000 rpm and pressing 1 mm into the PCTA plate. In addition, in the friction welding of aluminum foam and PCTA plate, it was found that the pores of the aluminum foam were maintained without being collapsed. The anchoring effect is presumably caused by the penetration of PCTA softened by the frictional heat generated by the friction welding into the pores. Furthermore, tensile tests of the joined samples showed that fracture occurred either at the joining interface or at the base material of the aluminum foam, and that the joining strength was equivalent to the tensile strength of the aluminum foam itself.

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Section: Introductionmentioning

confidence: 99%

Friction Welding of Polycarbonate Plate and Aluminum Foam Fabricated by Precursor Foaming Process

Hangai,

Yamamoto,

Goto

et al. 2023

Metals

Self Cite

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Pore form and size dependence on plastic joining characteristics of resin/metallic foam by friction stir incremental forming

Matsumoto,

Kunisawa,

Utsunomiya

2024

Int J Adv Manuf Technol

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A metallic foam specimen was plastically joined with a resin (polymethyl methacrylate, PMMA) sheet by applying friction stir incremental forming (FSIF) process. In FSIF process, a rotating flat-ended (no probe) rod tool was pushed vertically and fed horizontally against the resin sheet which was placed on the foam. The tool operation heated frictionally the resin and deformed incrementally to the resin, while the tool operation did not deform plastically to the cellular matrix of the foam. Due to the plastic flow of the heated resin, the bottom of the resin was interlocked mechanically to the pores near the top surface of the foam. In this study, the relationship between the pore morphology (form and size) and the joining characteristics (joinability, flow thickness of the resin, and joining strength) was investigated using commercial open-cell nickel and closed-cell aluminum foams. According to the experimental investigations, the foam with small size and low depression angle of the surface pore showed better results in relation with the joining strength and the (flow thickness of the resin)/(depth of the surface pore).

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Effects of Rotational Speed and Processing Time on Bonding Strength of Porous Aluminum and Thermoplastic Resin during Friction Welding

Cited by 2 publications

References 11 publications

Friction Welding of Polycarbonate Plate and Aluminum Foam Fabricated by Precursor Foaming Process

Friction Welding of Polycarbonate Plate and Aluminum Foam Fabricated by Precursor Foaming Process

Pore form and size dependence on plastic joining characteristics of resin/metallic foam by friction stir incremental forming

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