Experimental investigations into ultrasonic-assisted jet electrodeposition process

Abstract

In this study, a new process namely, ultrasonic-assisted jet electrodeposition, has been conceived. The ultrasonic-assisted jet electrodeposition process integrates the use of ultrasonic vibrations and high-speed selective jet electrodeposition process to fabricate micro shapes with comparatively high accuracy and with no edge effect. The present study focuses on the development of ultrasonic-assisted jet electrodeposition setup. The impacts of voltage, pulse on time of ultrasonic vibration, concentration of CuSO 4 Á5H 2 O and interelectrode gap for the fabrication of square-shaped micro part have been studied. Deposition rate and dimensional accuracy of fabricated micro features were considered as responses. The experimental results showed that the ultrasonic-assisted jet electrodeposition process has the capability to fabricate micro parts, which yield better dimensional accuracy and no edge effect but waviness of the order of 10-50 mm, as compared to uneven depositional width and edge effect (gap of 200-250 mm) obtained by jet electrodeposition process.

Preparation of Ni coating on NdFeB by magnetic jet electrodeposition

“…In the absence of a magnetic field, the coating surface has many protuberances, pit defects, and even with black spots in Figure 4(a). Edge effect is easy to occur in jet electrodeposition, 21–23 when the surface of the coating grown with micro-protrusions, it would continue to grow and form larger bulges. So the coating flatness and uniformity was poor.…”

Wear resistance of Ni-Co/SiC composite coating by jet electrodeposition in the presence of magnetic field

“…[6][7][8][9][10] Different from the above research, in this article, we used high-speed jet electrodeposition. [11][12][13] Normally, it is easy to agglomerate and settle in the liquid storage tank when the content of nanoparticles is larger in jet electrodeposition. Therefore, it is necessary to improve the dispersion of nanoparticles using an external composite technology.…”

Fabrication of nano-sized grain micro features using ultrasonic-assisted jet electrodeposition with pulsed current supply

“…UAJE process is a combination of HSSJE and UALMAE processes, in which ultrasonic vibrations are used to set up acoustic waves inside the jet and can be used for fabrication of better morphological and accurate micro parts/features. 11 Ultrasonic waves inside the jet create complicated non-linear interaction precisely upon the substrate, which causes homogeneous deposition all along impingement zone, and result in more homogeneous and dimensionally stable feature with the absence of edge effect. 11 Mechanical, tribological and chemical properties of micro features used in micro systems are very important for better performance of the part.…”

“…11 Ultrasonic waves inside the jet create complicated non-linear interaction precisely upon the substrate, which causes homogeneous deposition all along impingement zone, and result in more homogeneous and dimensionally stable feature with the absence of edge effect. 11 Mechanical, tribological and chemical properties of micro features used in micro systems are very important for better performance of the part. It is evident that the nano range grain size significantly affects mechanical, physical and chemical properties.…”

“…Their results showed improved morphology of deposited structure without significant impact on deposition rate. Rajput et al 11 developed ultrasonic-assisted jet electrodeposition (UAJE) process for fabrication of micro features. UAJE process is a combination of HSSJE and UALMAE processes, in which ultrasonic vibrations are used to set up acoustic waves inside the jet and can be used for fabrication of better morphological and accurate micro parts/features.…”