Optimization of Bar-to-Bar Dissimilar Friction Welding of Hydraulic Valve Spool Steel and the Weld Strength Properties and Its AE Evaluation |
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유공압 밸브 스풀용 강재의 봉대봉 이종재 마찰 용접 최적화와 용접강도 특성 및 AE 평가 |
오세규,유인종,박형동,이연탁 |
부경대학교 기계공학과,동명전문대학 기계공학과,부경대학교 기계공학과,부경대학교 기계공학과 |
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© 1996 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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Keywords:
Fatigue Strength, Tensile strength, Friction Welding, Nominal stress ratio, AE evaluation, PWHT(Post weld heat treatment) |
핵심용어:
피로강도, 인장강도, 마찰용접, 공창응력비, 음향방출평가, 용접후 열처리 |
Abstract |
Up to now, most of studies on mechanical properties in friction welded components are about tensile and bending strength. However the fatigue studies on the friction-welded components subjected to repeated stress are not available. The purposes of this study are the development of fundamental design and the development of in-process real-time weld quality evaluation technique by acoustic emission for the bar-to-bar dissimilar friction welding of hydraulic valve spool steels. |
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