| 复杂盘饼类铝合金锻件等温成形缺陷分析 |
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| 引用本文： | 张艳秋,徐福昌,王冠,庄树军,李宏伟,单德彬. 复杂盘饼类铝合金锻件等温成形缺陷分析[J]. 锻压技术, 2008, 33(5) |
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| 作者姓名： | 张艳秋 徐福昌 王冠 庄树军 李宏伟 单德彬 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨,150001;哈尔滨飞机工业集团工程技术部,黑龙江哈尔滨,150060 |
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| 摘 要： | 以环形座锻件为例,采用实验研究和有限元数值模拟相结合的方法研究了复杂盘饼类铝合金锻件等温成形时缺陷产生的机理.结果表明:采用反挤变形方式可以控制金属的径向流动速度,能有效地防止复杂盘饼类铝合金锻件的径向折叠和穿流缺陷的发生;各区域金属分配不合理会使局部区域因缺少金属而引起充不满或对流折叠,或使局部金属过多引起折叠;增大镦粗时坯料与模具间的摩擦阻力和变形量,可使坯料获得更好的径向分布的流线,最终得到流线分布合理的锻件.
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| 关 键 词： | 盘饼类锻件 铝合金 等温成形 折叠 流线 |
Defects analysis of aluminum alloy disk forging with complex shape in isothermal forging |
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| ZHANG Yan-qiu,XU ru-chang,WANG Guan,ZHUANG Shu-jun,LI Hong-wei,SHAN De-bin. Defects analysis of aluminum alloy disk forging with complex shape in isothermal forging[J]. Forging & Stamping Technology, 2008, 33(5) |
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| Authors: | ZHANG Yan-qiu XU ru-chang WANG Guan ZHUANG Shu-jun LI Hong-wei SHAN De-bin |
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| Affiliation: | ZHANG Yan-qiu1,XU Fu-chang1,WANG Guan1,ZHUANG Shu-jun2,LI Hong-wei2,SHAN De-bin1(1.School of Materials Science , Engineering,Harbin Institute of Technology,Harbin 150001,China,2.Department of Engineering , Technic,Harbin Aircraft Industry Group,Harbin 150060,China) |
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| Abstract: | The forging of rotating seat was applied to study the mechanism of defects happened in isothermal forging of aluminum alloy disk forging with complex shape by combining experiment with FEM(finite element method).The results show that the flow velocity of metal in radial direction can be controlled by using backward extrusion,which can prevent radial folding and fibre breaking of aluminum alloy disk forging with complex shape.The irrational distribution of metal in different regions of billet will result in ... |
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| Keywords: | disk forging aluminum alloy isothermal forging folding flow lines |
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