http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정주영(Jeong Joo Young),양승환(Yang Seung Hwan) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6
The field is designed to provide a healthy place to think about the environment and to improve the quality of life in the smallest number of sanitation facilities for human life. In this study, the characteristics of different materials and economic effects of each method are compared to check the applicability of the field. Two materials were used to compare the economic feasibility of different joint styles with the a copper pipe and STS pipes. When the Easy - Joint method of the STS tube was combined with the costs of intuition, joints and labor, it was found that it was the least expensive of the different types of bonding methods.
김상영(S. Y. Kim),김형익(H. I. Kim),석창성(C. S. Seok),이재권(J. K. Lee),모진용(J. Y. Mo),박득용(D. Y. Park) 한국정밀공학회 2005 한국정밀공학회 학술발표대회 논문집 Vol.2005 No.10월
The Residual stress is stress at the inside of materials after plastic deformation. Certainly, this residual stress have an effect on fatigue life. Therefore, it is very important that understanding residual stress at the inside of materials. But in case of U-shaped Pipe that it is dealt with a matter in this paper, distribution of residual stress is very complicated and exactly become unknown caused by difficulty of measurement. Then, in this paper, we are evaluated residual stress at in the inside of materials by finite element program and verified validity by test.
안성환(Sung-Hwan Ahn),이춘만(Choon-Man Lee),신상훈(Sang-Hun Shin) 한국생산제조학회 2008 한국생산제조학회지 Vol.17 No.1
This study presents the selection of cutting conditions in high speed pipe cutting machine for the better quality. A high speed pipe cutting machine which uses a rotary knife can make good quality products in short time. But, the machine is much sensitive by cutting conditions because of the complicated mechanism. In this reason, many experiments for cutting condition selection are necessary to improve quality of production. This study carried out cutting experiments with the three factors that are cutting RPM, cutting force and pooling force. 2-dimensional profile measuring instrument is used to measure which is represented by △h, a sum of burr and collapse height. The effects of factors are analyzed by using MINITAB, the commercial software.