Scraping is a key finishing method for precision slideways but depends on skilled labor and suffers low efficiency. This study develops an Ultrasonic-Assisted Scraping (UAS) tool applying 28 kHz vibration with a peak-to-peak amplitude of ≈11.4 μm to improve machinability. Conventional scraping relies on plowing with large negative rake angles, causing resistance and tearing. UAS introduces intermittent micro-impact and extrusion, effectively increasing the rake angle. Experiments on aluminum, cast iron, stainless steel, and Turcite B showed higher removal rates and better surfaces under the same thrust load. A diffraction-induced rainbow surface on aluminum confirmed micro-scale vibration transfer. Findings highlight the universal mechanism shift in UAS from plowing to micro-impact.
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Hirotaka TSUTSUMI
Keitatsu Yamamoto
The Proceedings of Yamanashi District Conference
National Institute of Technology, Tokyo College
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TSUTSUMI et al. (Wed,) studied this question.
www.synapsesocial.com/papers/69eefcaefede9185760d39d2 — DOI: https://doi.org/10.1299/jsmeyamanashi.2025.a12