http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
摩擦熔接에 의한 超硬工具材와 金屬間의 壓接技術開發과 AE에 의한 品質評價
오세규(Sae-Kyoo Oh),전태언(Tae-Eun Jeon),박일동(Il-Dong Park),오명석(Myeong-Suk Oh),이주석(Joo-Suk Lee) 한국해양공학회 1996 韓國海洋工學會誌 Vol.10 No.1
This paper deals with determinig the proper friction welding condition and analyzing various mechanical properties of friction welded joints of sintered carbide tool materials(K20, P25 and SKDX5 for the blade part of drill or press punch) to alloy steel (SKH4, SCM440 for the shank part of drill or press punch), the alloy steel to aluminum(A6061 for the interlayer material between the blade part and the shank) and sintered carbide tool materials to aluminum. And also acoustic emission test will be carried out during fiction welding to evaluate the weld quality.
유공압밸브스풀용 강재의 봉 대 봉 동종대 마찰용접의 최적화와 용접강도특성 및 AE품질 평가
오세규(Sea-Kyoo Oh),이경우(Kyung-Woo Lee),전태언(Tae-Eun Jeon),오명석(Myeong-Suk Oh),이원석(Won-Suk Lee) 한국해양공학회 1996 韓國海洋工學會誌 Vol.10 No.2
In-process quality control and high reliability of the weld are the major concerns in applying friction welding to the economical and qualified mass-production. Experimental examinations and quantitative analysis were performed for the optimization of similar friction welding of hydraulic valve spool steels(SNCM220, SCM435, SACM645, SCM415, ø 24). The quantitative correlations were found between the initial cumulative counts of acoustic emission(AE) occurring during plastic deformation periods of the welding and the fatigue life as well as weld strength and welding conditions. A real-time evaluation system was developed for the friction weld quality by AE.
열간 금형재의 이종재 마찰용접과 크리프 수명예측(Ⅱ)-크리프 수명예측
박일동(IL-DONG PARK),공유식(YU-SIK KONG),오세규(SAE-KYOO OH),전태언(TAE-EUN JEON) 한국해양공학회 2001 韓國海洋工學會誌 Vol.15 No.2
It was confirmed that the life predictive equation by LMP and LMP-ISM are effective only up to 10² hours and can not be used for long times of 10³~10<SUP>5</SUP> hours, but that by ISM can be used for long times creep life prediction with more reliability. The predictive creep life equation of ISM has better reliability than those by LMP and LMP-ISM, and its realizably is getting better for long time creep prediction(10³~10<SUP>5</SUP>h).