Username(ID) Password Login

Forgot
my username Forgot
my password Register

Sorry.

You are not permitted to access the full text of articles.

If you have any questions about permissions,

please contact the Society.

죄송합니다.

회원님은 논문 이용 권한이 없습니다.

권한 관련 문의는 학회로 부탁 드립니다.

Journal Archive

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 30 , No. 5

[Paper List] [ Prev] [Go to Volume List] [ Next]


[ Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 30, No. 5, pp. 352-358
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Oct 2021
Received 10 May 2021 Revised 07 Jul 2021 Accepted 03 Aug 2021
DOI: https://doi.org/10.7735/ksmte.2021.30.5.352
Ultrasonic MQL System for Generating Size-controlled Droplets
Axel Lefebure^a ; Seeun Kim^a ; Yunseo Kang^a ; Hajin Park^a ; Jumi Lee^a ; Seohee Jang^a ; Inho Lee^a ; Juhye Shin^b ; Chang Soo Lee^b ; Deuk Kwi Lee^b ; Young Chang Park^b ; Jin Hur^b ; Hyung Jin Kwon^b ; Dongha Shim^a^{, *}
aDepartment of MSDE, Seoul National University of Science & Technology
bHansung GT


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



Funding Information ▼ Korea Institute for Advancement of Technology Ministry of Trade, Industry and Energy P0002092

Abstract

We present an ultrasonic MQL system for generating size-controlled droplets, engaging the requirement of variations in MQL droplet size depending on the used machining process and material. The proposed system architecture features four series chambers with a different vibrating mesh actuator; it demonstrates that a wide range of material- and machining process-specific lubrication requirements can be achieved by varying the mist atomization rate and droplet diameter. The vibrating-mesh outlet pore sizes were differentiated between 2 to 20 μm and driven by a 100 V peak-to-peak bipolar sinusoidal voltage. The oil with a kinematic viscosity of 8.9 cSt contacted the atomizing surface using an FLDC-configuration. Four-size mists were generated with mean volumetric droplet diameters of 19.1, 21.7, 39.0 and 48.3 μm; their atomization rates vary between 1.3 to 39.4 ml/h. The droplet size control must provide more flexibility for emerging ultrasonic MQL systems with improved lubrication and optimized machine-working performance.


Keywords: Biodegradable vegetable oils, Minimum quantity lubrication, Size-controlled droplet, Piezoelectric actuation, Ultrasonic atomization, Vibrating-mesh

Acknowledgments

This paper was supported by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korean Government (MOTIE) (P0002092, The Competency Development Program for Industry Specialist).

References


1.	Tai, B., Stephenson, D., Furness, R., Shih, A., 2014, Minimum Quantity Lubrication (MQL) in Automotive Powertrain Machining, Procedia CIRP, 14 523-528.
2.	Boswell, B., Islam, M., Davies, I., Ginting, Y., Ong, A., 2017, A Review Identifying the Effectiveness of Minimum Quantity Lubrication (MQL) during Conventional Machining, Int. J. Adv. Manuf. Technol., 92 321-340.
3.	Hwang, Y. K., Chung, W. J., Jung, J. Y., Lee, C. M., 2006, A Study on the Improvement of Cutting Force and Surface Roughness in MQL Turning, J. Korean Soc. Manuf. Technol. Eng., 15:4 83-91.
4.	Walker, T., 2015, The MQL Handbook V1.0.7, Unist, Inc, Grand Rapids, MI, USA.
5.	Johnson, A., Shin, J. D., Shim, D., 2019, Development of Integrated Sustainability Measurement Hierarchy (ISMH) for Sustainable Engineering, J. Korean Soc. Manuf. Technol. Eng., 28:6 325-334.
6.	Lefebure, A., Shim, D., 2021, Ultrasonic Atomization of Highly Viscous Biodegradable Oils for MQL Applications, J. Mech. Sci. Technol., Accepted.
7.	Rohit, J., Kumar, K., Reddy, N., Kuppan, P., Balan, A., 2018, Computational Fluid Dynamics Analysis of MQL Spray Parameters and Its Influence on MQL Milling of SS304, Simulations for Design and Manufacturing, Lecture Notes on Multidisciplinary Industrial Engineering, 45-78.
8.	Lefebvre, A., McDonell, V. G., 2017, Atomization and Sprays, CRC Press, Boca Raton, FL, USA.
9.	Madarkar, R., Agarwal, S., Attar, P., Ghosh, S., Rao, P., 2017, Application of Ultrasonic Vibration assisted MQL in Grinding of Ti–6Al–4V, Mater. Manuf. Process., 33:13 1445-1452.
*10.*	Hansung GT, n.d., viewed 10 May 2021, Hansung GT MQL Catalog, <http://www.hansungs.co.kr/bbs/board.php?bo_table=catalog_eng&sca=OIL+SKIMMER%EF%BC%86MQL>.
*11.*	ITW Rocol North America, n.d., viewed 10 May 2021, Accu-ube LB-6000 Technical Datasheet, <http://www.itwppfasia.com/en/webroot/upload/20200928/Accu-Lube-LB-6000-EN-TDS.pdf>.
*12.*	Balan, A., Kullarwar, T., Vijayaraghavan, L., Krishnamurthy, R., 2017, Computational Fluid Dynamics Analysis of MQL Spray Parameters and its Influence on Superalloy Grinding, Mach. Sci. Technol., 21:4 603-616.
*13.*	Awale, A. S., Vashista, M., Yusufzai, M. Z. K., 2020, Multi-objective Optimization of MQL Mist Parameters for Eco-friendly Grinding, J. Manuf. Process., 56 75-86.
*14.*	Kim, S. M., Kim, J. H., Kim, J. H., 2006, Optimum Machining Condition of Die Steel In The Oil-mist Condition, J. Korean Soc. Manuf. Technol. Eng., 15:2 59-65.
*15.*	Kwon, D. H., Lee, J. H., Hwang, I. O., Kang, M. C., Kim, J. S., 2006, A Study on the Microscopic Precision of Machined Surface according to Variation of Machining Environments in High Speed Endmilling, J. Korean Soc. Manuf. Technol. Eng., 15:6 50-57.
*16.*	Lang, Y., Zhang, J., 2014, Influence of Piezoelectric Atomizer Pores on Ultrasonic Atomization Effect, Proc. 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, 287-290.
*17.*	Osawa, K., 2008, Ultrasonic Atomization Apparatus, Japan Patent: 2010142737A.
*18.*	Yan, Q., Wu, C., Zhang, J., 2019, Effect of the Dynamic Cone Angle on the Atomization Performance of a Piezoceramic Vibrating Mesh Atomizer, Appl. Sci., 9:9 1836.
*19.*	Lin, Z., 2017, Car Humidifier, US Patent: 2017267068A1.
*20.*	Park, K., Olortegui-Yume, J., Yoon, M., Kwon, P., 2010, A Study on Droplets and their Distribution for Minimum Quantity Lubrication (MQL), Int. J. Mach. Tools Manuf., 50:9 824-833.

Axel Lefebure

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

E-mail: lefebure.axel@gmail.com

Seeun Kim

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

E-mail: kse1120012@gmail.com

Yunseo Kang

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

E-mail: buldog97@naver.com

Hajin Park

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

E-mail: hajin7048@gmail.com

Jumi Lee

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

E-mail: jmpoisonn@naver.com

Seohee Jang

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

E-mail: wkdtjgml7410@naver.com

Inho Lee

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

E-mail: jls3807@naver.com

Juhye Shin

Staff at HansungGT. Her research interest is Machine tool and computer-aided engineering.

E-mail: jhshin@hansungs.co.kr

Chang Soo Lee

Deputy general manager at HansungGT. His research interest is Machine tool and computer-aided engineering.

E-mail: cslee@hansungs.co.kr

Deuk Kwi Lee

General manager at HansungGT. His research interest is Machine tool.

E-mail: dk5533@hansungs.co.kr

Young Chang Park

Deputy general manager at HansungGT. His research interest is Machine tool.

E-mail: plan@hansungs.co.kr

Jin Hur

Director at HansungGT. His research interest is Machine tool.

E-mail: hur0513@hansungs.co.kr

Hyung Jin Kwon

CEO of HansungGT. 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 & Technology. His research interest is the design and implementation of multi-disciplinary electronic systems.

E-mail: dongha@seoultech.ac.kr