| 直齿圆柱齿轮浮动凹模冷闭式镦挤成形数值模拟分析 |
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| 引用本文： | 方泉水,辛选荣,刘汀,林雪.直齿圆柱齿轮浮动凹模冷闭式镦挤成形数值模拟分析[J].锻压技术,2007,32(2):122-125. |
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| 作者姓名： | 方泉水 辛选荣 刘汀 林雪 |
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| 作者单位： | 河南科技大学,材料科学与工程学院,河南,洛阳,471003;河南科技大学,材料科学与工程学院,河南,洛阳,471003;河南科技大学,材料科学与工程学院,河南,洛阳,471003;河南科技大学,材料科学与工程学院,河南,洛阳,471003 |
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| 摘 要： | 结合齿轮浮动凹模锻造和分流锻造技术,提出了一模两击式直齿轮冷闭式镦挤新技术,即先进行环形坯料带活动芯轴的镦挤预锻,后进行无芯轴空心分流终锻的两步成形工艺.并通过DEFORM-3D数值模拟分析和比较,验证了该技术能解决成形力过大和齿形充不满等缺陷,是适用于直齿圆柱齿轮精锻的有效工艺方案.
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| 关 键 词： | 直齿圆柱齿轮 浮动凹模 冷闭式镦挤 数值模拟 |
| 文章编号： | 1000-3940（2007）02-0122-04 |
| 修稿时间： | 2006-05-182006-09-18 |
FEM numerical Simulation analysis for the cold closed upsetting-extrusion fluctuating forging of the spur gear |
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| FANG Quan-shui,XIN Xuan-rong,LIU Ting,LIN Xue.FEM numerical Simulation analysis for the cold closed upsetting-extrusion fluctuating forging of the spur gear[J].Forging & Stamping Technology,2007,32(2):122-125. |
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| Authors: | FANG Quan-shui XIN Xuan-rong LIU Ting LIN Xue |
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| Abstract: | According to the floating-die forging and divided flow method for spur gear, a new technology of cold closed upsetting-extrusion process was introduced. In this new technology, the ring type of workpiece was preformed with the mandrel and forged finally using hollow divided flow method. The 3D rigid-plastic FEM results show that this new technology can solve the forming limitations, such as excessive deformation force and unsuccessful filling about tooth profile, and that it is an effective forging process for spur gears. |
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| Keywords: | spur gear floating-die cold closed upsetting-extrusion numerical simulation |
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