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Residual stress distributions for two types of laser-welded lap joints with different welding directions can be found using finite element method , indicating that the maximum tensile residual stress is identical to the order of yield strength .
((1) 서로 다른 용접 방향들과 함께 레이져 용접된 겹이
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Welding Society, Vol.40, No.9, pp.901-903.
(12) T. Yoshida and H. Ohmura, “Dissolution and Deposit of Base Metal in Dissimilar Metal Brazing”, Welding Journal, Vol.64, No1, pp. 1s-12s.
(13) Y. Nakao, K. Nishimoto, K. Saida, H. Nakamura and K. Katada, “Consideration of Residual Stress in Si3N4 to Met
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Residual stress test results of hardfaced layers at the surface.
Fig. 11. Residual stress test results of hardfaced layers at the cross section.
Fig. 12. Comparison of wear rate between the hardfaced specimens and the counterpart adamite specimens.
Fig. 13. Secondary electron images of wear tested a
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Welding), 플라즈마 용접(PAW: Plasma Arc Welding), 일렉트로 슬래그용접(ESW: Electro Slag Welding), 일렉트로 가스용접(EGW:Electro Gas Welding), 레이저 용접(LBW: Laser-beam Welding), 초음파 용접(USW: Ultrasonic Welding), 브레이징(Brazing), 마찰용접(FRW: Friction Welding), 스폿
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stress)
Ⅱ압축 응력(壓縮應力, compressive stress)
Ⅲ전단 응력(剪斷應力, shearing stress)
Ⅳ비틀림 응력(- 應力, torsional stress)
Ⅴ휨 응력(-應力, bending stress)
Ⅵ수직응력(垂直應力, normal stress)
Ⅶ잔류 응력(殘留應力, Residual Stress)
Ⅷ항공기에 작용
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스트레스 감소시킴
② 반좌위 : 횡격막 하강 → 폐 확장, 환기증진, 정맥귀환량 감소 → 폐울혈 예방
③ 대변 완화제 사용 : 변비로 인한 긴장 해소
④ 소량의 부드러운 음식 섭취 : 첫 48시간 유동식, 그 후 연식(6회/일)/ 저염식이/ 뜨겁거나 찬
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