Transactions of Materials and Heat Treatment

Title：Influence of ultrasonic vibration on surface properties for incremental forming parts

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ClassificationCode：TG386

year,vol(issue):pagenumber：2023,48(1):59-66

Abstract：

In order to explore the influence of ultrasonic vibration on surface properties and surface morphology of incremental formed part, the step size and ultrasonic vibration were selected as the experimental variables, and the influences of ultrasonic vibration on the surface morphology (waviness, pit and surface roughness) and the surface properties (hardness and contact angle) of the formed parts were comprehensively analyzed. The results show that the ultrasonic vibration reduces the surface waviness height and changes the pit depth of formed part. After applying ultrasonic vibration, the surface roughness of the formed parts decreases obviously, it decreases with the increasing of step size, and the regular pits were observed on the surface of the formed parts. Compared with the original sheet, the hardness of the incremental formed part is significantly increased, but the surface hardness of the formed part applied with ultrasonic vibration is lower than that of the traditional formed part. Meanwhile, the hardness is increased with the increasing of the step size. After applying ultrasonic vibration, the contact angle can reach 112°, showing hydrophobicity.

Funds：

国家自然科学基金资助项目(51975328)

作者简介: 李金慧(1997-), 女, 硕士 E-mail: 992751228@ qq. com 通信作者: 李燕乐(1989-), 男, 博士, 教授 E-mail: yanle. li@ sdu. edu. cn

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