Prof. Hongxiang Wang Profile

Prof. Hongxiang Wang

at Harbin Institute of Technology

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Proceedings Article | 5 March 2018 Paper

Ultrasonic vibration double scratch morphology and scratching force of BK7 glass

Chu Wang, Hongxiang Wang, Junliang Liu, Shi Gao

Proceedings Volume 10710, 107102N (2018) https://doi.org/10.1117/12.2314920

KEYWORDS: Ultrasonics, Glasses, Abrasives, Surface finishing, Polishing, Diamond machining, Diamond, Particles, Ceramics, Superposition

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In this paper, the damage morphology and scratching force of BK7 glass components were analyzed by ultrasonic vibration double-scratch test. The results showed that there was surface damage caused by plastic flow and brittle fracture during the scratching process, and the scratching depth and the distance between the two scratches had effect on the propagation and overlapping of lateral cracks. When the scratching depth was small, the jagged scratch was produced on the surface, and accompanied by a small amount of tiny pieces of debris off. With the increase in scratching depth, the lateral cracks caused by scratching overlapped and expended to form a mesh sheet, and then fell off from the surface. When the scratching distance was small, the interaction of the cracks caused large slice of material to fall off. With the increase in scratching distance, the area between the two scratches was not easy to occur the overlapping of the lateral cracks. In addition, with the increase of the scratching depth, the scratching force showed a gradual increase trend, and the scratching force of the second scratch would increase with the scratching distance.

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