Investigation of resistance heat assisted ultrasonic welding of 6061 aluminum alloys to pure copper

Yang, Jingwei; Biao, Cao

doi:10.1016/j.matdes.2015.02.028

Cited by 68 publications

(23 citation statements)

References 22 publications

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“…The grain size [4], the properties of wear [5] and fatigue [6] of materials can be markedly improved through UNSM, as it produces surface hardness and compressive residual stress. Ultrasonic welding has also received much attention as an alternative joining technique [7,8]. Barbosa et al investigated that ultrasonic casting can refine grain size and reduce the porosity shrinkage of the sample [9].…”

Section: Introductionmentioning

confidence: 99%

Effects of Ultrasonic-Aided Quenching on the Corrosion Resistance of GB 35CrMoV Steel in Seawater Environment

Jiang

Zhou

Chen

et al. 2018

Metals

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Abstract:The effects of ultrasonic-aided quenching (USQ) on the microstructure and corrosion properties of 35CrMoV steel in a simulated seawater environment (wt % (NaCl) = 3.5) were studied. The corrosion properties of the steel were studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization curves. The scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) were used to characterize the microstructure and corrosion products. Combined with the EIS equivalent circuit, the corrosion mechanism was investigated. The results show that the microstructure of the USQ specimen is small martensite and that there was no residual ferrite compared with an un-ultrasonic-aided quenching (UUSQ) sample. It was also found that the corrosion products of USQ sample are less than the UUSQ sample, and the corrosion cracks are lighter and thinner than that of the UUSQ sample, which indicates that the corrosion resistance of 35CrMoV in a seawater environment has been obviously improved.

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Section: Introductionmentioning

confidence: 99%

Effects of Ultrasonic-Aided Quenching on the Corrosion Resistance of GB 35CrMoV Steel in Seawater Environment

Jiang

Zhou

Chen

et al. 2018

Metals

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“…Compared to friction stir spot welding, in this method, a sound joint is produced by ultrasonic spot welding with a shorter bonding cycle [4,9,10]. Furthermore, ultrasonic spot welding is more suitable for achieving satisfactory joints when working with miniature workpieces and multiple dissimilar materials owing to its characteristics [2,11,12].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, Zhao and Yang et al studied the influence of input energy on the bonding behavior of Cu/Al joints [2,11]. The function of the intermetallic thickness as welding energy was investigated by Panteli and Robson et al [13,19].…”

Section: Introductionmentioning

confidence: 99%

Effects of Vibration Amplitude on Microstructure Evolution and Mechanical Strength of Ultrasonic Spot Welded Cu/Al Joints

Liu

Biao

Yang

2017

Metals

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Abstract:The effects of vibration amplitude on the interface reaction and mechanical strength of the Cu/Al joints were systematically investigated in ultrasonic spot welding (USW) experiments. The appropriate vibration amplitude (22.5 µm) was beneficial for obtaining a sound joint. The formation of the continuous intermetallic compounds (IMC) layer accelerated with a higher vibration amplitude. The lap shear tensile strength of the Cu/Al joints decreased when the thickness of the intermetallic layer was greater than 1 µm at various amplitudes. With the increase in welding time, a crack occurred in the copper side owing to the occurrence of the eutectic reaction, α-Al + θ → L, at the periphery of the nugget. The remarkable decline of ultrasonic power curves occurred at various amplitude levels upon the formation of a crack in the copper side.

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“…Copper and aluminum are commonly used in the fields of BEVs because of their high electrical and thermal conductivity [1]. Joining of Al-Cu is a critical issue in battery assembly.…”

Section: Introductionmentioning

confidence: 99%

Mechanical analysis of ultrasonic welding considering knurl pattern of sonotrode tip

Chen

Zhang

2015

Materials & Design

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Investigation of resistance heat assisted ultrasonic welding of 6061 aluminum alloys to pure copper

Cited by 68 publications

References 22 publications

Effects of Ultrasonic-Aided Quenching on the Corrosion Resistance of GB 35CrMoV Steel in Seawater Environment

Effects of Ultrasonic-Aided Quenching on the Corrosion Resistance of GB 35CrMoV Steel in Seawater Environment

Effects of Vibration Amplitude on Microstructure Evolution and Mechanical Strength of Ultrasonic Spot Welded Cu/Al Joints

Mechanical analysis of ultrasonic welding considering knurl pattern of sonotrode tip

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