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J. Ocean Eng. Technol. 1999;13(4):98-104.    

Optimization of Friction Welding for Crank Shaft Steels and Its Real Time AE Evaluation
Oh, Sae-Kyoo;Choi, Hei-Young;Kong, Yu-Sik;
크랭크 샤프트강재의 마찰용접 최적화와 AE 실시간 평가
부경대학교 기계자동차 공학부;울산직업전문학교;부경대학교 대학원;
© 1999 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Friction Welding(FRW), Optimization, Weld Strength, Weld Tourhness, Acoustic Emission(AE), Real-Time AE Evaluation
핵심용어: 마찰용접, 최적화, 용접강도, 용접인성, 음향방출, 실시간 AE평가
The crank shafts need anti-corrosion materials. So STS 304 is the essential material to manufacture this shaft. However, it costs more to manufacture the shafts by using only STS 304 than welding of STS 304 to other carbon steels. And it has been difficult to weld this sort of dissimilar materials. They could be unstable in the quality by the conventional arc welding. And also they have a lot of technical problems in manufacturing. But by the friction welding technique, it will be able to be made without such problems. Then, this study aimed not only to develop the optimization of dissimilar friction welding of crank shafts steels of STS 304, SM35C, but also to develop the application technique of the acoustic emission to accomplish in-process real-time quality(such as tensile) evaluation during friction welding of the shafts by the AE technique.


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