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협소 공간 절삭가공용 앵글 헤드 스핀들 케이스 소형화에 대한 연구
성철훈(Chul Hoon Sung),한성길(Sung Gil Han),김성훈(Sung Hoon Kim),송철기(Chul Ki Song) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.6
In order to improve the fuel economy and dynamic behavior of automobiles, the weight reduction tendency of automobile parts is obvious. Also, in order to maximize assembly and maintenance convenience, various parts are integrated and modularized. Multi-piece methods require many manufacturing processes and become a factor of lowering the strength of parts. It is advantageous to overcome the disadvantages by integrally manufacturing to reduce the processing steps and ensure the strength of the parts. However, when it is necessary to process in a narrow space inside the part, it is impossible to process with the existing spindle. The angle head spindle is only a component of a machine tool, but it is a core part that requires high technology and is highly utilizable in products requiring high precision machining. Therefore, various and continuous studies needs for angle head spindles in areas such as vibration absorption, operational safety, excellent dimensional stability, and strength. In this paper, we propose an optimal design for angle head spindle by performing structural analysis and shape optimization for angle head spindle gear and case.
위상최적화를 적용한 공작기계 베드의 리브구조 최적설계와 실험적 검증
황지상,김성재,윤정현,성철훈 한국생산제조학회 2023 한국생산제조학회지 Vol.32 No.6
As the eco-friendly automotive industry grows, interest in machinery research for producing environmentally friendly vehicle components increases. Among the components of a manufacturing machine, high stiffness is essential for the bed of the frame. Currently, rib design relies on the experience of mechanical engineers; thus, establishing an optimal method for rib structure design is crucial. This study employed topology optimization to derive the rib structure of the bed. Following this optimization, a compression test was conducted on test specimens from both the initial and optimized designs, produced using a 3D printer. This research confirmed the applicability and validity of using topology optimization in rib structure optimization.