interface reaction in ultrasonic vibration-assisted brazing of

Theoretical modeling and experiments of oxide layer

To simplify the analysis process, the ultrasonic vibration was assumed to remain stable in the processing, and small changes in the ultrasonic amplitude and ultrasonic frequency were ignored. The grinding force used in the model was constant and was only considered as a cutting deformation force during the machining process.

Behaviors of Oxide Film during Semisolid Brazing of

The effect of ultrasonic vibration on soldering Al-Mg alloy," Quarterly Journal of the Japan Welding Society, vol. 14, pp. 260–266, 1996. View at: Publisher Site | Google Scholar S. Sugiyama, M. Kiuchi, and J. Yanagimoto, "Application of semisolid joining—Part 4 glass/metal, plastic/metal, or wood/metal joining," Journal of Materials Processing Technology, vol. 201, no. 1–3, pp

Theoretical modeling and experiments of oxide layer

To simplify the analysis process, the ultrasonic vibration was assumed to remain stable in the processing, and small changes in the ultrasonic amplitude and ultrasonic frequency were ignored. The grinding force used in the model was constant and was only considered as a cutting deformation force during the machining process.

Interfacial Structure and Formation Mechanism of

2017/5/1Formation mechanism of the Al 12Si/SiC interface in ultrasonic-assisted brazing Based on the previous discussion, the erosion process induced by the ultrasonic vibration can be described as follows. When the ultrasonic vibration propagated into the molten Al 12Si filler metal through the interface, many cavitation bubbles formed adjacent to the interface and collapsed drastically.

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Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration Zhengcai Liu1,2,3, Tao Zhu1*, Yiwang Jia2,3**, Dongfu Song2,3, Nan Zhou2,3 and Kaihong Zheng2,3 1 School of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China

(PDF) Application of ultrasonic vibrations in welding and

The welding arc is integrated with the ultrasonic vibration setup so that an ultrasonic induced arc oscillating at the ultrasonic frequency can be generated [161,173,174]. The ultrasonic vibration assisted arc welding is found to be more promising in terms of

Ultrasonic welding

Ultrasonic welding is an industrial process whereby high-frequency ultrasonic acoustic vibrations are locally applied to workpieces being held together under pressure to create a solid-state weld.It is commonly used for plastics and metals, and especially for joining dissimilar materials..

Recent development of ultrasonic brazing

Ultrasonic brazing is an innovative application of power ultrasound in brazing. The conventional brazing processes are improved or even changed by the physical and chemical effects of ultrasound. Thus, ultrasonic brazing is used as a new method to achieve the bonding of dissimilar materials by using the mechanical vibration energy and static pressure of ultrasound frequency. The

Ultrasonic welding

Ultrasonic welding is an industrial process whereby high-frequency ultrasonic acoustic vibrations are locally applied to workpieces being held together under pressure to create a solid-state weld.It is commonly used for plastics and metals, and especially for joining dissimilar materials..

Effect of ultrasonic vibration on interfacial reaction of

This paper aims to investigate the effect of ultrasonic vibration (USV) on the evolution of intermetallic compounds (IMCs), grain morphology and shear strength of soldered Ni/Sn/Ni samples.,The Ni/Sn/Ni joints were obtained through ultrasonic-assisted soldering. The

Evolution of Microstructure, Mechanical Properties and

Ultrasonic vibration with different powers from 0 kW to 1.6 kW was applied during the tungsten inert gas welding-brazing of Mg/Ti. The microstructures, mechanical properties and corrosion resistance of the ultrasonic assisted tungsten inert gas (U-TIG) welded-brazed Mg/Ti joint were characterized.

Behaviors of Oxide Film during Semisolid Brazing of

The effect of ultrasonic vibration on soldering Al-Mg alloy," Quarterly Journal of the Japan Welding Society, vol. 14, pp. 260–266, 1996. View at: Publisher Site | Google Scholar S. Sugiyama, M. Kiuchi, and J. Yanagimoto, "Application of semisolid joining—Part 4 glass/metal, plastic/metal, or wood/metal joining," Journal of Materials Processing Technology, vol. 201, no. 1–3, pp

Theoretical modeling and experiments of oxide layer

To simplify the analysis process, the ultrasonic vibration was assumed to remain stable in the processing, and small changes in the ultrasonic amplitude and ultrasonic frequency were ignored. The grinding force used in the model was constant and was only considered as a cutting deformation force during the machining process.

A critical review on the chemical wear and wear

2020/1/14Further, the experiment also combined carbon nanofluid and ultrasonic vibration-assisted turning in CMQL to analyze the wear suppression mechanism in the diamond-cutting of ferrous metals. As presented in figure 25, the experimental results show that MQL and CMQL have clear advantages in reducing tool wear.

Advances in Mechanical Engineering Microstructure and mechanical The Author(s) 2020 properties of Cu/Sn

XRD phase analysis was performed for the shear frac-ture surface of the ultrasonic vibration 30 s samples, as shown in Figure 5(b). The results show that (Sn) solid solution, Cu 11In 9, Cu 9In 4,Cu 6Sn 5,Cu 10Sn 3 exist in the weld seam, and e(Cu 3Sn) phase exists.Sn) phase exists.

Microstructure and mechanical properties of Cu/Sn

Ultrasonic-assisted transient liquid phase bonding of pure Cu with Sn-In solder was realized at 140 C in air. Shear test was carried out on the weldment. The effect of ultrasonic vibration on microstructure and mechanical properties of the weld seam was studied.

Interfacial Structure and Formation Mechanism of

2017/5/1Formation mechanism of the Al 12Si/SiC interface in ultrasonic-assisted brazing Based on the previous discussion, the erosion process induced by the ultrasonic vibration can be described as follows. When the ultrasonic vibration propagated into the molten Al 12Si filler metal through the interface, many cavitation bubbles formed adjacent to the interface and collapsed drastically.

Interfacial Structure and Formation Mechanism of

Abstract: Ultrasonic-assisted brazing of SiC ceramics was performed by filling with an Al-12Si alloy at a low temperature of 620 C in air. The interfacial characteristics and formation mechanism were investigated. The joint shear strength reached 84-94 MPa using

XU Z Z. Mechanisms for ultrasonic assisted welding and bonding of aluminum based composites by liquid filler and their applications[D]. Harbin:Harbin Institute of Technology, 2008. [33] XU Z W, YAN J C, ZHANG B Y, et al. Behaviors of oxide film at the ultrasonic aided interaction interface of Zn-Al alloy and Al 2 O 3 P/6061Al composites in air[J].

A critical review on the chemical wear and wear

2020/1/14Further, the experiment also combined carbon nanofluid and ultrasonic vibration-assisted turning in CMQL to analyze the wear suppression mechanism in the diamond-cutting of ferrous metals. As presented in figure 25, the experimental results show that MQL and CMQL have clear advantages in reducing tool wear.

Behaviors of Oxide Film during Semisolid Brazing of

2.2. Brazing Process The filler metal was preset between the base materials. The thermocouple used to measure the temperature was fixed near the bonding line, and an accuracy of the temperature control was 1 C. The specimens were heated up to 380 C (T S) at a heating rate of 20 Cmin −1 and held for 10 min to homogenize the samples.

Advances in Mechanical Engineering Microstructure and mechanical The Author(s) 2020 properties of Cu/Sn

XRD phase analysis was performed for the shear frac-ture surface of the ultrasonic vibration 30 s samples, as shown in Figure 5(b). The results show that (Sn) solid solution, Cu 11In 9, Cu 9In 4,Cu 6Sn 5,Cu 10Sn 3 exist in the weld seam, and e(Cu 3Sn) phase exists.Sn) phase exists.

WZRVWHSVRIXOWUDVRQLFYLEUDWLRQ

Preparation of in-situ TiB2 reinforced aluminum matrix composites assisted by two steps of ultrasonic vibration Zhengcai Liu1,2,3, Tao Zhu1*, Yiwang Jia2,3**, Dongfu Song2,3, Nan Zhou2,3 and Kaihong Zheng2,3 1 School of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China

Effect of ultrasonic vibration on wetting of water/Cu,

2019/4/1Therefore, in the application of ultrasonic-assisted brazing, the improved wettability by the ultrasonic vibration may be mainly caused by the mentioned physical factors rather than the chemical reaction at the liquid/solid interface. Previous article in issue Next 1.

Coatings

Brazing of Al-alloys is of interest in many application fields (e.g., mechanical and automotive). The surface preparation of substrates and the in depth investigation of the interface reaction between aluminum substrates and brazing materials is fundamental for a proper understanding of the process and for its optimization. The interaction between two aluminum based substrates (Al5182 and

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