| 摘要 |
<p>The present invention relates to a three-layer-structured aluminum alloy multilayer clad sheet and a method for manufacturing thereof. More specifically, provided are an aluminum alloy multilayer clad sheet composed of a first layer and a third layer made of a 6000-series aluminum sheet; and a second layer made of a 5000-series aluminum sheet, which is interposed between the first layer and the third layer, and of which a thickness ratio of the first layer, the second layer, to the third layer is 1 : 1.5-2.5 : 0.9-1.1; and a method for manufacturing thereof. The three-layer-structured aluminum alloy multilayer clad plate according to the present invention has an effect of improving mechanical strength such as strength and elongation by bonding aluminum alloy plate materials having different mechanical properties and anisotropy at a specific thickness ratio. In addition, formability is excellent as anisotropy is offset due to different deformation behavior of each alloy layer. Furthermore, a plate material for a vehicle manufacture with the aluminum alloy multilayer clad plate has an advantage of exhibiting lightweightedness of a vehicle body due to aluminum, and excellent corrosion resistance, strength and formability.</p> |
