Direct Search-Based Robust Design of Warpage in Injection Molded Parts

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Journal of Korean Society for Quality Management > Volume 29(3); 2001 > Article

Journal of Korean Society for Quality Management 2001;29(3): 86-.

직접탐색법을 이용한 사출성형품의 강건설계

김경모¹, 박종천², 안흥일³

¹금오공과대학교 신소재시스템공학부
²금오공과대학교 기계공학부
³금오공과대학교 대학원

Direct Search-Based Robust Design of Warpage in Injection Molded Parts

ABSTRACT

The objective of this research is to develop a robust design methodology for plastic injection molded parts wherein warpage will be minimized by a complex method which is a kind of a simple direct search method. The design space considered for optimization is divided Into two sub-design space : mold and process conditions. Warpage is quantified using the Moldflow injection molding simulation software. The design methodology was applied to an actual part of a fax machine, the Guide-ASF model, through two different design policies. The significance of this study is the synthesis of a computer simulation of injection molding process and optimization technique to determine the optimal robust design solution.

Key Words: Robust Design;Plastic Injection Molding;Modified Complex Method;Mold Flow;