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Technical Brief

Improving the surface integrity of additive-manufactured metal parts by ultrasonic vibration-assisted burnishing

[+] Author and Article Information
Akinori Teramachi

Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama 223-8522, Japan
akinorim94@keio.jp

Jiwang Yan

Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku-ku, Yokohama 223-8522, Japan
yan@mech.keio.ac.jp

1Corresponding author.

ASME doi:10.1115/1.4043344 History: Received November 03, 2018; Revised March 19, 2019

Abstract

Metal additive manufacturing has been attracting attention as a new manufacturing method, but a surface finishing process is usually needed to improve the surface quality. As a new surface finishing process, ultrasonic vibration-assisted burnishing (UVAB) is promising. In this study, UVAB was performed on an additive-manufactured AlSi10Mg workpiece to improve its surface/subsurface integrity. The effects of ultrasonic vibration and lateral tool pass width on the burnishing performance were investigated. It was observed that the surface roughness, filling ratio, and hardness of the surface layer were simultaneously improved after burnishing. This study shows the effectiveness of applying UVAB to improving the surface quality of additive-manufactured products for various industrial uses.

Copyright (c) 2019 by ASME
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