http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
자동변속기용 고강도 소재의 경제성을 만족하는 최적 선삭 가공 조건 선정
김선현(S. H. Kim),김태형(T. H. Kim),이학선(H. S. Lee),홍의창(E. C. Hong),이정환(J. H. Lee) 한국소성가공학회 2014 한국소성가공학회 학술대회 논문집 Vol.2014 No.10
Most industries are required low manufacturing cost according to high competition recently. To get a low cost, manufacturing cost have to reduce more quickly and efficiently. But to get an optimum cutting condition, it highly tends to depend on a lot of test according to individual field experience. So it is necessary for change of the flexible cutting conditions in industrial site, because the society becomes high technology gradually. This study presents the selection of optimum cutting condition for high strength material used automotive transmission parts in turning and if selected minimum cutting force is satisfied an optimum manufacturing and tooling cost.
자동변속기용 부품의 에너지 절감을 위한 최적 설계 연구
김선현(S. H. Kim),김태형(T. H. Kim),이학선(H. S. Lee),홍의창(E. C. Hong),이정환(J. H. Lee) 한국소성가공학회 2014 한국소성가공학회 학술대회 논문집 Vol.2014 No.10
Lots of the industrial world with high energy consumption are trying to reduce energy of manufacturing product. Energy saving is cost reduction. So it is absolutely necessary for profit improvement of selling cost. Turning process after hot forging in vehicle auto transmission part changed to turning after plate cold forging for the energy and cost saving in former research. So it got weight saving of forging part. Heat energy can be reduce from hot forging to plate cold forging and weight saving of forging part got the energy and cost saving as reduction of turning volume. This study suggest a effective way to reduce an input material in cold forging and volume of turning operation. Therefore, this study presents optimum design for energy saving of manufacturing product.
김연한,문용재,조경석,박영득,최성환,장비호,김수진,Kim, Y.H.,Moon, Y.J.,Cho, K.S.,Park, Y.D.,Choi, S.H.,Jang, B.H.,Kim, S. 한국천문학회 2006 天文學論叢 Vol.21 No.2
We have successfully developed the KASI (Korea Astronomy and Space Science Institute) Solar Imaging Spectrograph (KSIS), which has been originally upgraded from the KASI solar spectrograph that was able to record solar spectra for a given slit region and to inspect the response function of narrow band filters. A prototype KSIS was developed in 2004 by using a scanning mirror in front of the spectrograph slit and a SBIG ST-8XE CCD camera. Its main disadvantage is that it took a long time (about 13 minutes) to scan a whole active region. In this work, we have upgraded the KSIS by installing a much faster Dalsa 1M15 CCD camera, which gives a data acquisition time of about 2.5 minutes. The software for KSIS was also improved for the new CCD camera on the basis of component-based development method. We have successfully made a test observation for a simple and small active region (AR10910) using the improved KSIS system. Our observations show that H-alpha images for several wavelengths have typical features in a sunspot as well as a H-alpha centerline image is quite similar to a BBSO H-alpha image, demonstrating the capability of the KSIS system.