Abstract Aluminum alloy foam-filled aluminum tube fabricated by friction stir back extrusion and its compression properties
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Aluminum alloy foam-filled aluminum tube fabricated by friction stir back extrusion and its compression properties

机译：搅拌摩擦挤压挤压制造铝合金泡沫填充铝管及其压缩性能

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AbstractAl tubes filled with Al foam were fabricated by friction stir back extrusion (FSBE), which can realize metal bonding between the foam and tube. In this process, an Al tube was first fabricated from bulk Al. Next, foamable precursor was coated on the surface of the inner wall of the fabricated tube. Thereafter, the tube coated with the precursor was heat-treated to foam the precursor, thus obtaining a tube filled with foam. In the tube fabrication process, it was found that a tube can be fabricated from a block with no defects and similar compression responses to that of a tube fabricated by a machining process. For the foaming process, it was found that the bonding of the precursor and tube induces strong bonding between the foam and tube. Regarding the compression properties of the tube, it was found that the foam-filled tube exhibited superior compression properties to empty tubes and foams. In particular, during compression tests, a decrease in the stress in stress–strain curves for an empty tube due to the generation of a fold can be avoided by filling the tube with foam filler with metal bonding between the foam and tube.
机译： 摘要 在此过程中，首先用块状Al制成了Al管。接下来，将可发泡的前体涂覆在所制造的管的内壁的表面上。此后，对涂覆有前体的管进行热处理以使前体发泡，从而获得填充有泡沫的管。在管的制造过程中，发现可以用没有缺陷且与通过机械加工方法制造的管的压缩响应相似的压缩响应的块制造管。对于发泡过程，发现前体和管的粘合引起泡沫和管之间的强粘合。关于管的压缩性能，发现泡沫填充的管表现出优于空管和泡沫的压缩性能。特别是，在压缩测试期间，可以通过用泡沫填充物填充管子并在泡沫和管子之间进行金属粘结来避免空管由于产生褶皱而使应力-应变曲线的应力降低。

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