인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
In order to realize the uniform and fine carbide control in GCr15 bearing steel with the strong spinning process, the main process parameters of the GCr15 bearing steel were first optimized with the response surface method and the finite element method in the strong spinning process. To comprehensively consider the deformation of a pipe fitting during the rolling process and the distribution of carbide after rolling, the second-order response model that combines the finite element simulation with the RSM was established by taking the mean strain of the cross-section of the pipe fitting and the uniformity of strain distribution as the optimization objectives. Based on the simulation results and the response model, the influence of each parameter on the optimization objectives was systematically analyzed, and a set of optimal parameter combinations were obtained and verified with experiments. The results show that: the distribution of carbides in the raw materials is significantly uniform and refined with the optimized parameters; the particle size of carbide reaches 0.2-0.3 μm after spheroidization annealing. In conclusion, this study verifies the effectiveness of the proposed process parameter optimization strategy, having important practical significance for improving the forming quality of GCr15 bearing steel.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.