| L6-LY12异种材料搅拌摩擦焊接技术 |
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| 引用本文： | 刘小文,杨宁宁,陈丹,鄢君辉.L6-LY12异种材料搅拌摩擦焊接技术[J].焊接学报,2004,25(5):22-24. |
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| 作者姓名： | 刘小文 杨宁宁 陈丹 鄢君辉 |
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| 作者单位： | 西北工业大学,西安,710072 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 0 2 75 12 3 ) |
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| 摘 要： | 通过SN比试验设计和方差分析研究了L6-LY12异种材料搅拌摩擦焊接工艺参数对焊接接头成形及力学性能的影响。参数显著性顺序为：焊接压力、焊接速度、搅拌头旋转转速。试验表明，对于5mm厚L6-LYl2板材，搅拌摩擦焊接工艺参数范围是：焊接压力2000～3000N；焊接速度37．5～60mm／min；搅拌头旋转速度950～1500r／min。优化的最佳工艺参数为2500N、37．5mm／min、950r／min。获取了等强或超强的搅拌摩擦焊接头。
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| 关 键 词： | 搅拌摩擦焊 L6铝与LY12铝合金 工艺参数 |
| 文章编号： | 0253-360X(2004)05-22-03 |
| 收稿时间： | 2003/11/3 0:00:00 |
Friction stir welding technique of dissimilar metals L6-LY12 |
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| LIU Xiao-wen,YANG Ning-ning,CHEN Dan and YAN Jun-hui.Friction stir welding technique of dissimilar metals L6-LY12[J].Transactions of The China Welding Institution,2004,25(5):22-24. |
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| Authors: | LIU Xiao-wen YANG Ning-ning CHEN Dan and YAN Jun-hui |
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| Affiliation: | LIU Xiao-wen,YANG Ning-ning,CHEN Dan,YAN Jun-hui Northwesten Polytechnical University,Xi' an 710072,China) |
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| Abstract: | The influence of welding parameters on the microstructure and properties of the friction stir welded joints of dissimilar metals L6 LYI2 was investigated. Signal noise ratio orthogonal experiment and analysis of variance were utilized. The parameters in the order of significance are: pressure, welding speed, rotational speed. The experiments conducted on L6-LYl2 with the thickness of 5 mm by friction stir welding suggest that the pressure can range from 2000 N to 3000 N, the welding speed can range from 37.5 mm to 60 ram, and the range of the rotational speed is 950 - 1500 r/min. The optimized parameters are 2500 N, 37.5 mm/min and 950 r/min. The welded joints are of homo-strength or hyper-strength. |
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| Keywords: | friction stir welding L6 aluminium and LY12 aluminium alloy welding parameters |
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