Experimental analysis on mechanical interlocking of metal–polymer direct joining

Zhao, Shuaijie; Kimura, Fumihiko; Kadoya, Shotaro; Kajihara, Yusuke

doi:10.1016/j.precisioneng.2019.10.009

Cited by 46 publications

(14 citation statements)

References 14 publications

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“…To enhance the joint strength of non-polar UHMWPE and TC4, mechanical interlocking is a better choice. Thus, complex structures are normally fabricated on the surfaces of metals [8,9,[13][14][15][16][17][18]. For example, inspired by the roots of mangrove trees, Alsheghri et al [13] introduced a new mechanical interlocking technique to strengthen metal-polymer interfaces by manufacturing Y-shaped features on metallic surfaces using laser sintering.…”

Section: Introductionmentioning

confidence: 99%

Surface Structuring via Additive Manufacturing to Improve the Performance of Metal and Polymer Joints

Zou

Huang

Chen

et al. 2021

Metals

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In order to enhance the joint performance of Ti6Al4V titanium alloy (TC4) and ultra-high molecular weight polyethylene (UHMWPE) for biomedical applications, different structures were fabricated on TC4 surfaces via electron beam melting (EBM) method in this study. Macromorphologies and microinterfaces of TC4–UHMWPE joints produced via hot pressing technique were carefully characterized and analyzed. The effects of different surface structures on mechanical properties and fractured surfaces were investigated and compared. Strong direct bonding (1751 N) between UHMWPE and TC4 was achieved. The interfacial bonding behavior of TC4–UHMWPE joints was further discussed. This study demonstrates the importance of combining macro- and micromechanical interlocking, which is a promising strategy for improving metal–polymer joint performance. It also provides guidance for metal surface structuring from both theoretical and practical perspectives.

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Section: Introductionmentioning

confidence: 99%

Surface Structuring via Additive Manufacturing to Improve the Performance of Metal and Polymer Joints

Zou

Huang

Chen

et al. 2021

Metals

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“…8). The rise in the tool rotational speed is adjudged to have increased the localized weld heat-input, polymer flowability [35], wettability of Al surface (at the faying region), and the embedded Al (anchors and threading) for mechanical interlocking in the hybrid Al/ABS joint. The increase in the tool rotational speed favors the wettability of the Al surface and this occurrence is expected to increase the adhesion area (secondary bonding mechanism) of the hybrid Al/ABS joint.…”

Section: Microstructurementioning

confidence: 99%

Macro-/micro-mechanical interlocking modification on the performance of hybrid friction stir spot welded aluminum/acrylonitrile butadiene styrene joints

Ojo¹

2021

Res. Eng. Struct. Mater.

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Macro-/micro-mechanical interlocking enhancement of hybrid aluminum/acrylonitrile butadiene styrene (Al/ABS) joint is investigated via the use of joint modification approaches such as pre-fabricated threaded-and unthreaded-hole friction stir spot welding processes. The structure, tensileshear failure load, and fracture behavior of the as-welded hybrid Al/ABS joints were investigated. Hybrid Al/ABS joint fabricated with threaded hole shows superior tensile-shear failure load due to the combined effects of compressive shearing-induced and threading-induced mechanical interlocks, and adhesion bonding mechanisms. The tensile-shear failure load of the threaded joint improved from 654 to 749 N as the tool rotational speed is increased from 710 to 1120 rpm. A rise in tool rotational speed improves the failure resistance of the hybrid Al/ABS joints (threaded and unthreaded) owing to the enhanced mechanical interlocking, bigger Al anchor/chip, and smaller interfacial gap between the re-solidified ABS and Al anchor. Threading and tool rotational speed have significant impacts on the fracture location and mode of the hybrid Al/ABS joint. The pre-fabricated threaded-hole friction stir spot welding process is thus recommended for the enhanced micro/macro-interlocking in hybrid Al/polymer joints.

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“…Even more importantly, the theoretical loadable area was not found to be an important factor with respect to shear strength. Zhao et al analyzed the mechanical interlocking in a bimaterial joint made of aluminum sheets that were micro structurized by pulse laser treatment and overmolded by polybutylene terephthalate (PBT) [23]. The authors investigated the correlation between the applied processing parameters and the real contact between the metal and the polymer, which was ascribed to the infiltration depth.…”

Section: Introductionmentioning

confidence: 99%

Polyamide 6-Aluminum Assembly Enhanced by Laser Microstructuring

Bula¹,

Korzeniewski²

2022

Polymers

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The presented work’s aim is the application of low-power laser treatment for the enhancement of interfacial micromechanical adhesion between polyamide 6 (filled with glass fiber) and aluminum. A fiber laser beam was used to prepare micro-patterns on aluminum sheets. The micro-structuring was conducted in the regime of 50, 100, 200 and 300 mm/s laser beam speeds, for both sides. The joining process was realized in an injection molding process. Metallic inserts were surface engraved and overmolded in one-side and two-side configurations. A lap shear test was used to examine the strength of the joints. Engraved metallic surfaces and adequate imprints on polyamide side were checked by optical microscope with motorized stages, and roughness parameters were also determined. Microscopic observations made it possible to describe the grooves’ shape and to conclude that a huge recast melt was formed when the lowest laser beam speed was applied; thus, the roughness parameter Ra reached the highest value of 16.8 μm (compared to 3.5 μm obtained for the fastest laser speed). The maximum shear force was detected for a sample prepared with the lowest scanning speed (one-sides joints), and it was 883 N, while for two-sided joints, the ultimate force was 1410 N (for a scanning speed of 200 mm/s).

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Experimental analysis on mechanical interlocking of metal–polymer direct joining

Cited by 46 publications

References 14 publications

Surface Structuring via Additive Manufacturing to Improve the Performance of Metal and Polymer Joints

Surface Structuring via Additive Manufacturing to Improve the Performance of Metal and Polymer Joints

Macro-/micro-mechanical interlocking modification on the performance of hybrid friction stir spot welded aluminum/acrylonitrile butadiene styrene joints

Polyamide 6-Aluminum Assembly Enhanced by Laser Microstructuring

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