【正文】 、耐高溫、耐低溫、耐輻射、防火、防爆、易切割、易拋光、可表面處理、可焊接和超輕等方面有著更多的特性專項和綜臺性能的要求。此時，發(fā)現(xiàn)鋁合金焊接時常見的缺陷和預(yù)防措施就成 了一件至關(guān)重要的事情。 關(guān)鍵詞 : 6061 鋁 焊接性 焊接工藝 Abstract With the progress of science and technology, the development of economy and the aviation, aerospace, industrial equipment needs and improve the living standards of the people on aluminum alloy in high strength, high toughness, high modulus, wear and corrosion resistance, fatigue resistance, high temperature resistant, low temperature resistant, radiation resistant, fire prevention, explosionproof, easy cutting, polishing, surface treatment, weldability and ultra light has more characteristics of special and prehensive performance requirements. At this time, found in aluminum alloy welding mon defects and prevention measures have bee a important things. This paper through the understanding of the history of the development of aluminum alloy, the mechanical properties of 6061 aluminum alloy, 6061 aluminum alloy chemical position and 6061 aluminum alloy application in production, from the analysis of 6061 aluminum alloy welding and welding technology, found from the aluminum alloy in the process of welding defects and preventive measures, in order to after making aluminum alloy welding process provides a basis. Key word: 6061 aluminum weidability welding process 畢業(yè)設(shè)計（論文） 3 目 錄 1 緒論 ....................................................................................................................................... 4 2 鋁合金的發(fā)展史 ................................................................................................................... 5 鋁合金的進(jìn)展 ................................................................................................................ 5 鋁合金的新進(jìn)展 ............................................................................................................ 5 3 材料介紹 ............................................................................................................................... 7 6061 鋁合金的元素 ........................................................................................................ 8 6061 鋁合金的特點 ........................................................................................................ 8 6061 鋁合金的主要用途 ................................................................................................ 8 6061 鋁合金的典型用途 ................................................................................................ 8 6061 鋁的化學(xué)成分 . .......................................................................................................8 6061 鋁的力學(xué)性能 ........................................................................................................ 8 6061 鋁的熱處理工藝 .................................................................................................... 9 6061 鋁的國外對應(yīng)牌號 ................................................................................................ 9 4 6061 鋁的焊接方法 ................................................................................................................9 5 6061 鋁合金的焊接性 ..........................................................................................................10 6061 鋁合金的優(yōu)點 .......................................................................................................10 6061 鋁合金的難點 .......................................................................................................10 6061 鋁合金的缺陷的種類及產(chǎn)生的原因 ...................................................................10 6061 鋁合金焊接氣孔缺陷產(chǎn)生的原因 ..................................................................10 6061 鋁合金焊接裂紋缺陷產(chǎn)生的原因 ..................................................................11 6061 鋁合金焊接缺陷的防止措施 .............................................................................. 12 6061 鋁合金焊接氣孔缺陷的防止措施 .........................................................