Wetting properties, recrystallization phenomena and interfacial reactions between laser treated Cu substrate and SAC305 solder

Hlinka, József; Fogarassy, Zsolt; Cziráki, Á.; Weltsch, Zoltán

doi:10.1016/j.apsusc.2019.144127

Cited by 19 publications

(8 citation statements)

References 13 publications

(18 reference statements)

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“…The lead-free solder used in this study is SAC 305, with the compositions of 96.5% tin, 3% silver and 0.5% copper [10]. At the room temperature, SAC 305 solder is a solid, and it liquified after reaching its melting temperature.…”

Section: Methodsmentioning

confidence: 99%

Numerical Simulation of Laser Soldering Process on Pin Through Hole (PTH)

Zahiri

Abas²,

Ng³

et al. 2022

ARFMTS

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The increasing demands in the miniaturization of microelectronic products promotes the automation of electronic assembly and manufacturing process such as laser soldering to deliver high quality and flexibility of solder joints. This paper investigates possibility of using computational fluid dynamics (CFD) to create simulation of laser soldering process. Heating process of solder phase was simulated Using finite volume method (FVM) and energy equation enabled. Results of the simulation was compared with experiment for validation. Generally, it is found that the solder formation is identical for both simulation and experimental process. Moreover, the temperature distribution shows that heating process of laser soldering has great heating distribution along the solder region.

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Section: Methodsmentioning

confidence: 99%

Numerical Simulation of Laser Soldering Process on Pin Through Hole (PTH)

Zahiri

Abas²,

Ng³

et al. 2022

ARFMTS

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show abstract

“…The locations of these zones are illustrated in figure 2. [5] [6] [7]. [8] During the welding of mixed joints, the formation of intermetallic compounds is a common phenomenon, which impairs the properties of the joint.…”

Section: Figure 1 Principle Of Fsw Process [5]mentioning

confidence: 99%

The effect of Argon Shield Gas and Cold Air for Friction Stir Welding of Ceramic-reinforced Aluminium Matrix Composite and Aluminium Alloy

Kovács

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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A dissimilar joint between friction stir welded ceramic-reinforced C35 aluminium matrix composite and AA7075-T6 aluminium alloy has some difficulties. For fusion welding of aluminium, a shielding gas always has to be used to achieve the required welding joint quality, but in the case of Friction Stir Welding (FSW) no shielding gas or filler material is required for welding aluminium alloys. To achieve a good welding joint between super strength aluminium alloys and ceramic-reinforced aluminium matrix composites some sort of support is needed. In this study, the effect of blowing argon gas and cold air (0 °C) was investigated with regards to the quality of the welding. For the experiment a cylindrical pin tool, a different feed and a constant rotation speed were utilized along with a marble table to avoid harmful heat conduction. For evaluations, hardness and tensile tests examinations were carried out to classify the mechanical properties of the joint. Experimental results showed that the blowing of gas and cold air having a positive effect on the welded joint quality and also for the weld face. Additionally, the optimal welding traveling speed and the temperature of the air blown was determined.

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“…G Béres et al also investigated the SEM. G Béres and Z Weltsch investigated the variation of hardness in dual phase steels with different of the materials under investigation was also important, which was analysed, for example, by XRD or reference to wettability and its characteristics [12] [13]. In their studies, the micro and macro structure Spectral images recorded the frequency as a function of time, while spectrum images plot the amplitude as a function of frequency.…”

Section: Describing the Process Of Recording The Acoustic Spectrummentioning

confidence: 99%

Recording acoustic spectrum for residual stress determination and assigning natural frequency ranges for vibration stress relief

Rutscher

Kiri²

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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We have developed a new technique for diagnostics in connection with vibration stress relief. The measurement images developed by us with a unique acoustic spectrum recording are not only suitable for determining the natural frequencies of metal castings, but can also be deduced from them the dislocation in the crystal structure and residual stress, which can cause deformation later. From the changes between the measurement images, the effect of different machining even resting and aging on the casting can be seen. Furthermore, the required input frequency for vibration stress relief can be easily determined from the measured images. Some of the main advantages are the process obtained quickly, easily and immediately. The research will be continued, we are working further development, including the acoustic diagnostic system, the VSR equipment, the recording software with an online platform.

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Wetting properties, recrystallization phenomena and interfacial reactions between laser treated Cu substrate and SAC305 solder

Cited by 19 publications

References 13 publications

Numerical Simulation of Laser Soldering Process on Pin Through Hole (PTH)

Numerical Simulation of Laser Soldering Process on Pin Through Hole (PTH)

The effect of Argon Shield Gas and Cold Air for Friction Stir Welding of Ceramic-reinforced Aluminium Matrix Composite and Aluminium Alloy

Recording acoustic spectrum for residual stress determination and assigning natural frequency ranges for vibration stress relief

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