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한국생산제조학회 학술지 영문 홈페이지
[ Article ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32, No. 2, pp.85-91
ISSN: 2508-5107 (Online)
Print publication date 15 Apr 2023
Received 20 Jan 2023 Revised 08 Feb 2023 Accepted 13 Feb 2023
DOI: https://doi.org/10.7735/ksmte.2023.32.2.85

실험계획법을 활용한 두더지 덫 부품의 플라스틱 사출성형 공정개선

김대호a ; 홍준희b, *
Improvement of Plastic Injection Molding Process of Mole Trap Parts using Design of Experiments
Dae Ho Kima ; Jun Hee Hongb, *
aGraduate School of Mechanical Engineering, Chungnam National University
bDepartment of Mechanical Engineering, Chungnam National University

Correspondence to: *Tel.: +82-42-821-5642 E-mail address: hongjh@cnu.ac.kr (Jun Hee Hong).

Abstract

Injection molding is a widely used mass production process. Damage due to residual stress has been observed in mole trap parts manufactured by the mass production process. Excessive deformation of the parts due to the shortened injection process caused the residual stress. Furthermore, the damage had occurred in products in which the gap in the middle of the cooled parts exceeded 101.5 mm. This study aimed to determine the process conditions in which the gap would be narrower than 101.5 mm, and the process time would be short. To explore the process conditions that restrict the deformation within the tolerance range and reduce the injection process time, the experimental design method was used. The results were used to improve the production process through regression modeling using full factorial design.

Keywords:

Injection molding, Design of experiment, Productivity, Warpage

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Dae Ho Kim

Ph.D. Candidate in the Department of Mechanical Engineering, Chungnam National University. His research interest is PDM, CAD/CAM, and Injection Mold.

E-Mail : scv3323@naver.com

Jun Hee Hong

Professor in the School of Mechanical Engineering, Chungnam National University. His research interest is Intelligent Measurement.

E-mail: hongjh@cnu.ac.kr