温度对AZ31镁合金型材温热弯曲成形精度的影响
Effect of temperature on geometric accuracy of AZ31 Mg alloy profile during warm bending process
查看参考文献14篇
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文摘
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采用数值模拟和实验方法研究薄壁、多筋AZ31镁合金型材温热弯曲过程,分析成形温度对弯曲型材成形精度的影响。结果表明:当成形温度由100℃升高至200℃时,镁合金型材弯曲件回弹角的实验值和模拟值都减小,实验值由11.6°减小至10.7°;弯曲半径的实验值和模拟值都减小,实验值由94.66 mm减小至93.74 mm;弯曲件截面畸变程度增大,对截面尺寸的影响程度依次为外侧筋厚度、内侧筋厚度、外侧距、内侧距和中间筋厚度。 |
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其他语种文摘
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The warm bending process of AZ31 Mg alloy profile with thin-wall and multi-rib was researched by using numerical simulation and experimental methods. The effect of forming temperature on geometric accuracy of bent profile was investigated. The results indicate that forming temperature increasing from 100 ℃ to 200 ℃, the numericaly simulated and experimental spingback angles of the bent AZ31 profile all decrease, the experimental values decrease from 11. 6° to 10. 7°; the bending radii of numerical simulated and experimental values decrease, the experimental values decrease from 94. 66 mm to 93. 74 mm; the distortion of cross-section increases, the sequencing of distortion levels is the thickness of outside-rib, the thickness of inside-rib, the width of outside of the profile, the width of inside of the profile and the thickness of middle-rib. |
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来源
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材料热处理学报
,2013,34(3):73-77 【核心库】
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关键词
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AZ31镁合金型材
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温热弯曲
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数值模拟
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成形精度
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地址
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1.
昆明理工大学材料科学与工程学院, 云南, 昆明, 650093
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中国科学院金属研究所, 辽宁, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1009-6264 |
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学科
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金属学与金属工艺 |
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基金
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云南省科技厅应用基础研究计划项目
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文献收藏号
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CSCD:4800060
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