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한국생산제조학회 학술지 영문 홈페이지
[ Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31, No. 5, pp.312-318
ISSN: 2508-5107 (Online)
Print publication date 15 Oct 2022
Received 18 Aug 2022 Revised 22 Sep 2022 Accepted 28 Sep 2022
DOI: https://doi.org/10.7735/ksmte.2022.31.5.312

다목적 함수 최적화를 통한 사출 금형의 카트리지 히터 배치 방법 연구

김미진a ; 최재혁b, *
Study on the Arrangement of the Cartridge Heaters in Injection Mold Using a Multi-objective Optimization Method
Mi Jin Kima ; Jae Hyuk Choib, *
aDepartment of Future Technology Convergence Engineering, Graduate School, Gwangju University
bDepartment of Mechanical Convergence Engineering, Gwangju University

Correspondence to: *Tel.: +82-62-670-2947 E-mail address: jhchoi@gwangju.ac.kr (Jae Hyuk Choi).

Abstract

The multi-objective optimization method is used to define the standard deviation (SD) of temperature and average temperature of a product as objective functions to optimize the arrangement of cartridge heaters in an injection mold. We intend to shorten the mold heating time by maximizing the average temperature and minimizing the deformation of the product by reducing the SD of temperature. The design variables were defined as the depth and distance of the heater. After creating an approximate model using the DOE method, multi-objective optimization was performed using the generated approximate model to calculate the Pareto front. The developed method was applied to a square specimen for verification and then applied to a commercial model. Overall, the average temperature improved by at least 2% and SD of temperature improved by approximately 8% compared to the initial design.

Keywords:

Injection mold, Cartridge heater, Multi-objective optimization, Thermoset molding, CAE

Acknowledgments

이 연구는 2022년도 광주대학교 대학 연구비의 지원을 받아 수행되었음.

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Mi Jin Kim

Ph.D candidate in the Department of Future Technology Convergence Engineering, Graduate School, Gwangju University. Her research interest is injection molding process.

E-mail: kmj5997@gmail.com

Jae Hyuk Choi

Professor in the Department of Mechanical Convergence Engineering, Gwangju University. His research interests are optimization of injection molding process and thermoset plastic molding.

E-mail: jhchoi@gwangju.ac.kr