In this study, the shape of the exterior, not the inside of the product, was modified. Various exterior shape change plans were compared and reviewed through injection molding analysis, and among them, the most effective shape for suppressing warpage deformation was derived. The shape of the product was modified to optimize the bending deformation of the cover located at the top of the automobile battery case. The analysis was conducted under a total of three conditions, each of shape A, which is a rectangular parallelepiped shape at the top of the product, and shape B, which is concave on the side of the product. As a result of the study, both shape A and shape B were reduced compared to the amount of bending deformation of the original shape. Among them, shape B2, which showed the largest reduction, decreased by 82.096% from the amount of bending deformation of the original shape.

Abstract
1. 서 론
2. 배터리 커버 구조 및 성형 조건
    2.1 자동차 배터리 커버의 구조
    2.2 사출 성형 조건
3. 제품 형상 수정
4. 휨 변형량 분석
    4.1 개별 형상의 휨 변형량 분석
    4.2 결합 모 델의 휨 변형량 분석
5. 결 론
References

• 하성민(a graduated school Dept. of Metal Mold Design Engineering, Kongju National University) | Jung-won Lee
• 김경아(Dept. of Digital convergence Metal Mold Engineering, Kongju National University) | Kyung-A Kim Corresponding author