[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31, No. 2, pp.101-107

ISSN: 2508-5107 (Online)

Print publication date 15 Apr 2022

Received 03 Feb 2022 Revised 28 Feb 2022 Accepted 22 Mar 2022

DOI: https://doi.org/10.7735/ksmte.2022.31.2.101

수용성 절삭유의 부패방지를 위한 온도와 초음파 가진의 영향에 관한 연구

노태민^a ; 레페부르 악셀^b ; 김민욱^c ; 박동혁^b ; 최지섭^d ; 신대견^e ; 김태호^f ; 유민혁^e ; 고병호^g ; 신주혜^h ; 이창수^h ; 이득귀^h ; 박영창^h ; 허진^h ; 권형진^h ; 심동하^b^{, *}

A Study on the Effect of Temperature and Ultrasonic Vibrations on the Sterilization of Water-soluble Cutting Fluids

Tae-Min Nho^a ; Axel Lefebure^b ; Min-wook Kim^c ; Donghyuck Park^b ; Ji-Seob Choi^d ; Dae-Kyeon Shine^e ; Tae-Ho Kim^f ; Min-Hyeok Yoo^e ; Byoung Ho Ko^g ; Juhye Shin^h ; Chang Soo Lee^h ; Deuk Kwi Lee^h ; Young Chang Park^h ; Jin Hur^h ; Hyung Jin Kwon^h ; Dongha Shim^b^{, *}

aDepartment of IT and Media Engineering, Seoul National University of Science and Technology
bDepartment of MSDE, Seoul National University of Science and Technology
cDepartment of Automotive Engineering, Seoul National University of Science and Technology
dDepartment of Mechanical Engineering, Seoul National University of Science and Technolog
eDepartment of Information Technology & Media Engineering, Seoul National University of Science and Technology
fDepartment of Integrated IT Engineering, Seoul National University of Science and Technology
gResearch Institute of Nano Manufacturing System, Seoul National University of Science and Technology
hHansung GT Co. Ltd.

Correspondence to: ^*Tel.: 82-2-970-7287 E-mail address: dongha@seoultech.ac.kr (Dongha Shim).

Abstract

This study analyzes the ineffectiveness of ultrasonic treatment for used cutting fluid sterilization. The microorganism population in a water-soluble cutting fluid sample was observed while applying a 40-kHz ultrasound with a power density level of 0.27 and 0.37 W/cm², respectively. The ultrasonic treatment was accompanied by a temperature rise due to the heating effect of cavitation or ultrasonic components. It was observed that the population does not vary below ~45°C, and drops rapidly as the temperature rises. This phenomenon is further investigated using a heater to provide the heating effect. The results showed that the population drops faster at a higher temperature; and there was no significant difference in the population pattern between the ultrasonic and heat treatments at a constant temperature of ~50°C. The overall results showed that ultrasonic treatment does not reduce the microorganism population in the cutting fluid, where temperature is a dominant factor.

Keywords:

Cutting fluid, Microorganism, Ultrasonic treatment, Temperature, Sterilization

Acknowledgments

이 논문은 2022년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원을 받아 수행된 연구임(P0002092, 2022년 산업혁신인재성장지원사업).

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Tae-Min Nho

Graduate student in the Department of IT and Media Engineering, Seoul National University of Science and Technology. His research interest is Analog Electronic Engineering.

E-mail: see_0109@naver.com

Axel Lefebure

Student in the Department of MSDE, Seoul National University of Science and Technology. His research interest is Manufacturing Systems and Design Engineering.

E-mail: lefebure.axel@gmail.com

Min-wook Kim

Graduate student in the Department of Automotive Engineering, Seoul National University of Science and Technology. His research interests are Micro/Nano Fabrication and Mechatronics.

E-mail: fortune_leaf@naver.com

Donghyuck Park

Graduate student in the Department of MSDE, Seoul National University of Science and Technology. His research interest is Manufacturing Systems and Design Engineering.

E-mail: dhpark2876@gmail.com

Ji-Seob Choi

Graduate student in the Department of Mechanical Engineering, Seoul National University of Science and Technology. His research interests are Micro Electro Mechanical Systems.

E-mail: giesoub93@naver.com

Dae-Kyeon Shin

Graduate student in the Department of Information Technology & Media Engineering, Seoul National University of Science and Technology. His research interest is Analog Electronic Engineering.

E-mail: then0925@gmail.com

Tae-Ho Kim

Graduate student in the Department of Integrated IT Engineering, Seoul National University of Science and Technology. His research interest is Analog Electronic Engineering.

E-mail: dbalsgur94@gmail.com

Min-Hyeok Yoo

Graduate student in the Department of Information Technology & Media Engineering, Seoul National University of Science and Technology. His research interest is Analog Electronic Engineering.

E-mail: dbalsgur94@gmail.com

Byoung Ho Ko

Researcher in Research Institute of Nano Manufacturing System, Seoul National University of Science and Technology. His research interest is Mechanical Engineering.

E-mail: masikko@naver.com

Juhye Shin

Staff at Hansung GT Co. Ltd. Her research interest is Machine tool and computer-aided engineering.

E-mail: jhshin@hansungs.co.kr

Chang Soo Lee

Deputy general manager at Hansung GT Co. Ltd. His research interest is Machine tool and computer-aided engineering.

E-mail: cslee@hansungs.co.kr

Deuk Kwi Lee

General manager at Hansung GT Co. Ltd. His research interest is Machine tool.

E-mail: dk5533@hansungs.co.kr

Young Chang Park

Deputy general manager at Hansung GT Co. Ltd. His research interest is Machine tool.

E-mail: plan@hansungs.co.kr

Jin Hur

Director at Hansung GT Co. Ltd. His research interest is Machine tool.

E-mail: hur0513@hansungs.co.kr

Hyung Jin Kwon

CEO of Hansung GT Co. Ltd. His research interest is Machine tool.

E-mail: hjkn6848@hansungs.co.kr

Dongha Shim

Professor in the Department of MSDE, Seoul National University of Science and Technology. His research interest is the Modeling, Simulation and Design Engineering for multi-disciplinary systems (Digital Twin).

E-mail: dongha@seoultech.ac.kr