邵光大,李智军,李宏伟,等.高温合金Ω截面密封环旋压成形规律研究[J].精密成形工程,2019,11(5):37-42.
SHAO Guang-da,LI Zhi-jun,LI Hong-wei,et al.Spinning Forming Rule of a Superalloy Ω-section Sealing Ring[J].Journal of Netshape Forming Engineering,2019,11(5):37-42. |
| 高温合金Ω截面密封环旋压成形规律研究 |
| Spinning Forming Rule of a Superalloy Ω-section Sealing Ring |
| 投稿时间：2019-08-03 修订日期：2019-09-10 |
| DOI：10.3969/j.issn.1674-6457.2019.05.005 |
| 中文关键词: 旋压 密封环 有限元 工艺参数 |
| 英文关键词: spinning sealing ring finite element process parameters |
| 基金项目:国家自然科学基金（U1737212，U1637102） |
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| 摘要点击次数: 2820 |
| 全文下载次数: 2005 |
| 中文摘要: |
| 目的 研究工艺参数对高温合金Ω截面密封环旋压成形过程的影响规律，解决该类构件旋压成形难题。方法 基于ABAQUS/Explicit平台建立了高温合金Ω截面密封环普旋三维有限元模型，通过该模型研究了旋压成形过程中的主要工艺参数对其等效应力、等效塑性应变、壁厚变化的影响规律，进而揭示了各参数对环件成形质量的影响。结果 芯模转速增大，不均匀变形程度增大，等效应力峰值先增大后减小，壁厚减薄基本不变；增大旋轮进给率与旋轮圆角半径，均有利于降低不均匀变形程度和等效应力峰值，改善壁厚减薄。结论 当芯模转速为10~15 rad/s，旋轮进给率为0.8~1.0 mm/r，旋轮圆角半径为1.5~2.0 mm时，可以获得成形质量较高的Ω截面密封环。 |
| 英文摘要: |
| The paper aims to study the influence rule of process parameters on the spinning process of a superalloy Ω-section sealing ring. A 3D elastic-plastic finite element model for the spinning processes of Ω-section sealing ring was established based on the ABAQUS/Explicit platform. The influence rules each parameter on the equivalent stress, equivalent plastic strain and wall thickness change during spinning forming were researched to reveal the influences of each parameter on the forming quality of rings. The results show that when the mandrel speed increased, the degree of uneven deformation of Ω-section sealing ring increased, the peak value of the equivalent stress increased first and then decreased, and the extreme value of the wall thickness tended to increase slightly. Increase of the roller feed ratio and the roller nose radius are favorable to decrease the degree of uneven deformation and the peak value of the equivalent stress, and improve the thickness distribution. When the mandrel speed is 10~15 rad/s, the roller feed ratio is 0.8~1.0 mm/r, and the roller nose radius is 1.5~2.0 mm, high quality sealing ring can be obtained. |
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