朱宇,门明良,孟宝,等.航空发动机钣金件多工序连续工艺链式仿真方法研究及实验验证[J].精密成形工程,2023,15(12):42-49.
ZHU Yu,MEN Ming-liang,MENG Bao,et al.Research and Experimental Verification of Multi-pass Continuous Process Chain Simulation Method for Sheet Metal Part of Aeroengine[J].Journal of Netshape Forming Engineering,2023,15(12):42-49. |
| 航空发动机钣金件多工序连续工艺链式仿真方法研究及实验验证 |
| Research and Experimental Verification of Multi-pass Continuous Process Chain Simulation Method for Sheet Metal Part of Aeroengine |
| 投稿时间：2023-11-13 |
| DOI：10.3969/j.issn.1674-6457.2023.12.006 |
| 中文关键词: 钣金件 多工序成形 高温合金 有限元仿真 数据传递 |
| 英文关键词: sheet metal multi-process forming superalloy finite element simulation data transfer |
| 基金项目:国家科技重大专项(J2019-VII-0014-0154);国家科技重大专项(2017-VII-0011-0177) |
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| 中文摘要: |
| 目的 针对航空发动机上挡溅盘钣金件的多工序成形过程，进行有限元仿真分析与实验验证。方法 以ABAQUS和DEFORM为仿真平台，先采用ABAQUS对钣金件第一道次的拉深回弹过程进行仿真，在此基础上，将第一道次仿真结果导入DEFORM中，作为初始状态进行退火热处理;然后将仿真结果导入ABAQUS中作为初始状态进行第二道次的拉深回弹仿真，重复上一道次的数据传递过程，再进行热处理与第三道次整形模拟，在每一道次拉深成形后对比模拟与实验结果。结果 实现了钣金件在同一软件和不同软件之间几何形状及物理场的数据传递，完成了钣金件的多工序连续工艺仿真成形。第一道次拉深卸载后零件回弹较小，模拟得到的零件几何尺寸与实验结果误差较小，但卸载后零件中有较大残余应力，通过热处理可以很大程度地消除残余应力，增强高温合金后续的成形性能，经过多工序成形仿真后，几何特征尺寸累计误差值略有增大，但仍在可接受范围内。结论 包含中间退火热处理的多工序成形仿真可以较好地描述实验结果，证明了仿真结果的准确性与有效性，可以为改进和优化钣金件的设计及成形过程提供科学指导。 |
| 英文摘要: |
| The work aims to carry out finite element simulation analysis and experimental verification for the multi-process forming of a typical sheet metal part in aeroengine splash baffle. ABAQUS and DEFORM were adopted as simulation platforms. ABAQUS was used to simulate the first deep drawing and springback process. On the basis, the simulation results were imported into DEFORM as the initial state for annealing heat treatment. Then, the results after annealing were imported into ABAQUS for the second deep drawing and springback process. The data transfer process of the previous one was repeated for the next heat treatment and the third reshaping simulation. Meanwhile, the simulation and experiment results were compared after each deep drawing process. The data transfer of geometric shape and physical field of the sheet metal part between the same and different software was achieved and the multi-pass continuous process simulation forming of sheet metal part was completed. After the first deep drawing and unloading, the part had little springback, and the error between the simulated part geometry and the experimental results was small. There was a large residual stress in the part after unloading, but it could be almost eliminated by heat treatment, which enhanced the subsequent formability of the superalloy. After multi-process forming simulation, the cumulative error value of the geometric feature size increased slightly, while it was still within acceptable limits. The multi-process simulation forming including intermediate annealing can describe the experimental results well, prove the accuracy and effectiveness of the simulation results and provide scientific guidance for improving and optimizing the design and manufacture of sheet metal parts. |
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