[ Technical Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 30, No. 4, pp.332-337

ISSN: 2508-5107 (Online)

Print publication date 15 Aug 2021

Received 10 Jun 2021 Revised 28 Jun 2021 Accepted 05 Jul 2021

DOI: https://doi.org/10.7735/ksmte.2021.30.4.332

초음파 절삭가공에 의한 절단면의 Burr 높이의 최적화 실험

맹혜민^a ; 최한빛^a ; 임동욱^b ; 박찬일^a ; 강동성^a^{, *}

Optimization Experiment of Burr Height by Ultrasonic Cutting Machining

Hye-Min Maeng^a ; Han-Bit Choi^a ; Dong-Wook Lim^b ; Chan-Il Park^a ; Dong-Seong Kang^a^{, *}

aR&D Center, OL tech Inc.
bDeparment of Mechanical Engineering, Inha University

Correspondence to: ^*Tel.: +82-32-832-3610 E-mail address: kds@oltech.kr (Dong-Seong Kang).

Abstract

Ultrasonic cutting technology that can perform micro-cutting is applied for convenience of work to cut out unnecessary parts of a clear aligner during the manufacturing process of transparent devices for orthodontics. Ultrasonic processing is not limited physically or chemically by the material of the workpiece because it is a non-thermal, non-chemical, and non-conductive method. Owing to these characteristics, it is suitable for processing brittle materials such as glass and ceramic regardless of electrical conductivity. An ultrasonic cutting system is produced by applying this ultrasonic cutting technology, and the heights of burrs on the cut surface of PETG sheets are included in the experiment. The burr height is measured by setting the cutting speed to 100, 300, 500, 700, and 900 mm/min, and the power to 50, 60, 70, 80, 90, and 100 %. Then the optimal conditions are derived.

Keywords:

Ultrasonic machining, PETG, Cutting surface, Burr height, Ultrasonic power, Cutting speed

Acknowledgments

이 본 연구는 중소벤처기업부 “투명 교정시트 형상 자동 커팅 장비개발(S2884114)” 사업의 연구비 지원에 의해 수행되었습니다.

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