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攪拌摩擦焊與氬弧焊接接頭摩擦磨損性能研究
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TG457.14

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國家自然科學(xué)基金（50774059）;陜西省科技計(jì)劃項(xiàng)目（2003K07-G8）及西安市工業(yè)攻關(guān)項(xiàng)目（GG04063）資助


Research on Friction and Wear Performances of Joints by TIG and Friction Stir Welding
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    摘要:

    分別試驗(yàn)了LF2鋁合金攪拌摩擦焊焊接接頭與氬弧焊接接頭的摩擦磨損行為，試驗(yàn)分為3個(gè)階段進(jìn)行，轉(zhuǎn)數(shù)分別為480，1200，2400轉(zhuǎn)。結(jié)果表明在相同的實(shí)驗(yàn)條件下，攪拌摩擦焊接頭的摩擦磨損性能明顯優(yōu)于氬弧焊接接頭，其中第一階段磨損失質(zhì)量差別不大，后兩個(gè)階段攪拌氬弧焊接接頭的磨損失質(zhì)量是攪拌摩擦焊接頭的4~6倍。氬弧焊接接頭磨損表面呈現(xiàn)明顯的塑性變形和表層剝落開裂跡象。攪拌摩擦焊接頭磨損表面呈現(xiàn)輕微的疲勞磨損特征。

    Abstract:

    Friction and wear performances were investigated using gas tungsten arc welds and the friction stir welds of LF2 aluminum alloy, and three sorts of revolution speeds, e.g. 480, 1200, 2400 r/min were adopted. The result showed that the friction stir weld showed much better wear-resistance performance than the gas tungsten arc welds under the same condition. There was almost no difference of wear mass loss at 480 r/min. The wear mass loss of friction stir welds was about 4~6 times less that of the gas tungsten arc welds at the other two speeds. The morphologies of the surfaces of worn welds were observed, it was found that the surface of gas tungsten arc welds presented plough ditch and spalling, and the friction stir welds presented mild fatigue wear.

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王快社 王訓(xùn)宏 蘇曉莉 徐可為.攪拌摩擦焊與氬弧焊接接頭摩擦磨損性能研究[J].稀有金屬材料與工程,2007,36(10):1835~1838.[Wang Kuaishe, Wang Xunhong, Su Xiaoli, Xu Kewei. Research on Friction and Wear Performances of Joints by TIG and Friction Stir Welding[J]. Rare Metal Materials and Engineering,2007,36(10):1835~1838.]
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  • 最后修改日期:2006-09-23
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