| 摘要 |
A plate-stiffener assembly and a manufacturing method thereof are provided to reduce thermal transformation, residual stress, and softening resulting from welding. A manufacturing method of a plate-stiffener assembly(100) comprises a step of preparing a rigid body support(130) with a stiffener receiving part(130a) inside to receive a stiffener(110), a step of fixing the stiffener in the stiffener receiving part of the rigid body support, a step of uniting a plate material(120) to one end of the fixed stiffener, and a step of performing friction-stir-welding along the combining surface between the plate material and the stiffener. The stiffener is composed of a web(112) arranged in the center and upper and lower flanges(114,116) formed on the top and bottom of the web.
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