내마모 합금주강의 2 캐비티 사형주조 기술을 적용한 초대형 굴삭기 무한궤도형 트랙슈 부품의 최적 주조 방안 설계
Abstract
This study aims to develop two-cavity track shoe parts with an extended lifespan by applying sand casting technology using wear-resistant alloy cast steel. This approach reduces manufacturing costs while enhancing product durability. Previously, track shoe parts produced using single-cavity sand casting technology faced issues related to limited product lifespan, leading to frequent replacements and increased costs. Additionally, quality concerns have emerged due to these factors. To address these challenges, the two-cavity design was introduced to improve fluidity, thereby enhancing both product life and cost efficiency. Furthermore, the casting method for track shoe parts in two-cavity sand casting was optimally designed through casting solidification analysis. In particular, the size and position of the chill densener were modified to prevent shrinkage defects in the lug section of the track shoe parts.
Keywords:
Optimal casting, Excavator caterpillar, Track shoe parts, 2 cavity, Sand castingAcknowledgments
이 논문은 중소벤처기업부 중소기업기술혁신개발사업(과제번호 RS-2024-00487804) 지원으로 수행되었습니다.
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Research Fellow in the Department of AI Digital Manufacturing Convergence Research, Gyeongbuk Technopark. His research interests are Sheet Metal Forming, Forging and Casting Technology.
E-mail: pdh@gbtp.or.kr
Manager in the Department of Quality Management, Dongil Metal Co., Ltd.. His research interests are Sand Casting Technology for more than 2 Cavities, Mold Steel/Manganese Steel Manufacturing Technology.
E-mail: chlee@dongilmetal.co.kr
Director in the Department of Technology Sales, Dongil Metal Co., Ltd.. His research interests are Sand Casting Technology for more than 2 Cavities, Casting Manufacturing Technology.
E-mail: chelwoo7@dongilmetal.co.kr