[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31, No. 1, pp.41-47

ISSN: 2508-5107 (Online)

Print publication date 15 Feb 2022

Received 08 Nov 2021 Revised 14 Dec 2021 Accepted 15 Dec 2021

DOI: https://doi.org/10.7735/ksmte.2022.31.1.41

비등방성 로킹을 위한 금속의 하이브리드 마이크로 텍스쳐링 가공법

박종욱^a^{, *} ; 김한^b

Hybrid Micro Texturing on Metal Surfaces for Anisotropic Locking

Jong Wuk Park^a^{, *} ; Haan Kim^b

aDepartment of Mechanical Design Engineering, Dongyang Mirae University
bDepartment of Mechanical Engineering, Dongyang Mirae University

Correspondence to: ^*Tel.: +82-2-2610-1763 E-mail address: jongwukpark@dongyang.ac.kr (Jong Wuk Park).

Abstract

In this paper, a novel hybrid micro texturing method that combines laser beam machining and electrochemical etching was suggested. In this new machining process, tungsten anisotropic micro channel that was used for directional locking was fabricated. First, laser beam machining on a tungsten workpiece with tilted condition was adopted to rough texturing. Subsequently, a recast layer with tungsten oxide was generated that covered the original anisotropic channel shape, causing a low surface quality. For this reason, electrochemical etching was carried out to elute the recast layer into electrolyte. Moreover, EDS analysis that observed the atomic distribution of textured micro channel was performed to verify the principle of the suggested hybrid process. In the finally fabricated anisotropic micro channel after the hybrid texturing process, the interlocking force (maximum 133.44 N, 5×5 mm²) was measured using the load cell.

Keywords:

Laser beam machining, Electrochemical etching, Anisotropic locking, Interlocking, Hybrid machining, Micro texturing

Acknowledgments

이 연구는 동양미래대학교 2019 교내 학술연구 사업의 지원을 받아 수행된 연구임.

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Jong Wuk Park

Professor in the Department of Mechanical Design Engineering, Dongyang Mirae University. His research interest is non-traditional machining.

E-mail: jongwukpark@dongyang.ac.kr

Haan Kim

Professor in the Department of Mechanical Engineering, Dongyang Mirae University. His research interest is non-traditional machining.

E-mail: haan86@dongyang.ac.kr