Effect of plasma electrolytic oxidation coating on joining metal to plastic

Liu, Fengchao; Liao, Jinsun; Gao, Y.; Nakata, Kohei

doi:10.1179/1362171815y.0000000012

Cited by 68 publications

(24 citation statements)

References 18 publications

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“…20,21) MgO for Mg alloy/plastic, and MgO and Al 2 O 3 for Al alloy/ plastic were observed as oxide layers of these metals at these interfaces. It was indicated that these materials were also joined because of the Coulomb's force (hydrogen bonding) between the oxide layers of the metals and the polar group of plastics as well as plain carbon steel/plastic, as shown in Fig.…”

Section: Discussionmentioning

confidence: 91%

“…In recent years, researchers have investigated techniques for fusion bonding of dissimilar materials using various heat sources, such as laser joining, [7][8][9] ultrasonic welding, 10) induction heating, 11) friction spot joining, 12,13) friction stir welding, 14,15) and friction lap joining (FLJ). [16][17][18][19][20][21][22][23][24] FLJ, which is a novel direct joining method, is derived from a FSW process. The tool used in FSW consists of a stirring probe, to facilitate material flow, and a shoulder part; however, the tool used in FLJ does not require such a probe.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies [17][18][19][20][21] on FLJ have investigated dissimilar material joining of thermoplastics (e.g., polar plastics such as PA6 and ethylene acrylic acid copolymer (EAA) and non-polar plastics such as PE) to lightweight metals such as Al and Mg alloys. The possibility of directly joining polar plastics to such metals has been shown.…”

Section: Introductionmentioning

confidence: 99%

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Friction Lap Joining of Thermoplastic Materials to Carbon Steel

et al. 2016

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Dissimilar material joining of polyamide 6 and polyethylene plates to a plain carbon steel (SPCC) plate was performed using friction lap joining. The polyamide 6 and SPCC plates could be directly joined by friction lap joining, whereas the polyethylene and SPCC plates could not. Corona discharge treatment of the polyethylene surface enabled the joint formation with SPCC. The tensile shear fracture load of the SPCC/polyamide 6 and SPCC/corona-discharge-treated polyethylene joints increased with the joining speed up to 600 mm min − 1 , beyond which it decreased. These joints were fractured at the base material of the plastic plate at optimal joining speeds in the tensile shear test. Continuously joined interfaces of these materials were observed via cross-sectional microstructure analysis. Transmission electron microscopy and selected area diffraction patterns indicated that these materials were joined through the surface oxide layer of SPCC composed of Fe 3 O 4 . The relation between the tensile shear fracture loads and the results of XPS analysis indicated that polar groups such as amide, hydroxyl, and carboxyl groups on the plastic surfaces were highly effective for joint formation of the SPCC/plastic joints.

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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Friction Lap Joining of Thermoplastic Materials to Carbon Steel

et al. 2016

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“…Very recently, PEO coating has been used as an intermediary for joining metal to polymer using friction lap welding. [15] PEO treatment has been used to form oxide coatings on valve metals such as aluminum, magnesium, titanium, and their alloys. [16] The PEO treatment is an oxidizing process in an aqueous electrolyte through a series of electrolytic plasma discharges.…”

Section: Introductionmentioning

confidence: 99%

Application of porous oxide layer in plastic/metal direct adhesion by injection molding

Yeh

Hsu

2015

Journal of Adhesion Science and Technology

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In this study, porous oxide layers were coated on aluminum sheets by plasma electrolytic oxidation (PEO) treatment. The PEO-treated aluminum sheets were then inserted and direct heated in the injection mold. The melting plastic penetrated and solidified in the micropores during the injection molding process, consequently achieving plastic/metal direct adhesion through micro-mechanical interlocking. The effects of the different surface morphologies of PEO coatings on plastic/metal adhesion were studied by shear test and microscopic characterizations. The microstructures were varied by changing PEO process parameters. The bonding strength was affected by the surface morphology changes, and the experimental results show that the surface porosity is a major factor in the direct adhesion. Reliable joints can be achieved on the porous coating, and the strength was proportional to the surface porosity. The shear strength in this study was in a range of approximately 3-8 MPa with 7-20% surface porosity.

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“…However, because of the physical and chemical dissimilarities of individual materials, the development of suitable joining technologies is essential for enabling multi-material auto bodies. Recently, extensive research has been conducted for joining carbon fiber composites to various metals (e.g., aluminum or magnesium alloys), using laser welding [7,8], friction stir blind riveting [9], friction spot joining [10][11][12], ultrasonic welding [13], adhesive bonding [14], friction lap welding [15,16], friction-based injection clinching joining [17], self-piercing riveting [18,19], and hybrid bonding (adhesive + mechanical fastening) [20][21][22]. In addition, very limited work has been focused on joining carbon fiber composites to steel [8,14,23,24].…”

Section: Introductionmentioning

confidence: 99%

Dissimilar Materials Joining of Carbon Fiber Polymer to Dual Phase 980 by Friction Bit Joining, Adhesive Bonding, and Weldbonding

Lim

Park

Jang

et al. 2018

Metals

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In the present work, joining of a carbon fiber-reinforced polymer and dual phase 980 steel was studied using the friction bit joining, adhesive bonding, and weldbonding processes. The friction bit joining process was optimized for the maximum joint strength by varying the process parameters. Then, the adhesive bonding and weld bonding (friction bit joining plus adhesive bonding) processes were further developed. Lap shear tensile and cross-tension testing were used to assess the joint integrity of each process. Fractured specimens were compared for the individual processes. The microstructures in the joining bit ranged from tempered martensite to fully martensite in the cross-section view of friction bit-joined specimens. Additionally, the thermal decomposition temperature of the as-received carbon fiber composite was studied by thermogravimetric analysis. Fourier-transform infrared–attenuated total reflectance spectroscopy and X-ray diffraction measurements showed minimal variations in the absorption peak and diffraction peak patterns, indicating insignificant thermal degradation of the carbon fiber matrix due to friction bit joining.

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Effect of plasma electrolytic oxidation coating on joining metal to plastic

Cited by 68 publications

References 18 publications

Friction Lap Joining of Thermoplastic Materials to Carbon Steel

Friction Lap Joining of Thermoplastic Materials to Carbon Steel

Application of porous oxide layer in plastic/metal direct adhesion by injection molding

Dissimilar Materials Joining of Carbon Fiber Polymer to Dual Phase 980 by Friction Bit Joining, Adhesive Bonding, and Weldbonding

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