| Ni-Cr-W-Mo合金异型件热旋成形的质量分析 |
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| 引用本文： | 安震,李金山,胡锐,唐斌,王健,姚草根.Ni-Cr-W-Mo合金异型件热旋成形的质量分析[J].科技导报(北京),2012,30(3):30-34. |
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| 作者姓名： | 安震 李金山 胡锐 唐斌 王健 姚草根 |
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| 作者单位： | 1. 西北工业大学凝固技术国家重点实验室,西安 710072;2. 航天材料及工艺研究所,北京 100076 |
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| 摘 要： | 基于ABAQUS软件的Explicit/Standard模块建立了Ni-Cr-W-Mo合金异型件热旋成形的多道次热力耦合三维有限元模型,研究了Ni-Cr-W-Mo合金异型件热旋成形过程中的应力应变场的分布以及成形规律和常见缺陷。结果表明,考虑到缺陷的形成以及成形道次尽可能减少等因素,旋压间隙应大于3.7mm;此外,工件在靠近中心轴的部分贴模性非常好,但越靠近工件口部,不贴模的趋势越明显。
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| 关 键 词： | 高温合金 热旋成形 回弹 数值模拟 |
| 收稿时间： | 2011-12-05 |
Forming Quality of Heat Spinning for the Ni-Cr-W-Mo Superalloy Workpiece with Strange Shape |
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| AN Zhen,LI Jinshan,HU Rui,TANG Bin,WANG Jian,YAO Caogen.Forming Quality of Heat Spinning for the Ni-Cr-W-Mo Superalloy Workpiece with Strange Shape[J].Science & Technology Review,2012,30(3):30-34. |
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| Authors: | AN Zhen LI Jinshan HU Rui TANG Bin WANG Jian YAO Caogen |
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| Institution: | 1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China;2. Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China |
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| Abstract: | Based on the Explicit/Standard modules of software ABAQUS, a 3D finite element model of Ni-Cr-W-Mo superalloy workpiece with strange shape multi-pass is built. The distribution and variation features of stress-strain, hot spinning regular pattern, and common defects are investigated in the forming process for the Ni-Cr-W-Mo superalloy workpiece with strange shape. The results show that by taking some factors, such as the defects forming, minimizing forming pass, etc into account, the spinning gap should be bigger than 3.7mm. The gap between blank and mandrel is quite small at the region near the central axis, however, the gap near the oral part of workpiece increases enormously. |
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| Keywords: | superalloy heat spinning forming springback numerical simulation |
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