刘守生,吴珩,王雷刚,等.气动控制单元支架背压成形工艺研究及数值模拟分析[J].精密成形工程,2016,8(4):28-32.
LIU Shou-sheng,WU Heng,WANG Lei-gang,et al.Technology and Numerical Simulation of Pneumatic Control Unit Bracket Counterpressure Craft[J].Journal of Netshape Forming Engineering,2016,8(4):28-32. |
| 气动控制单元支架背压成形工艺研究及数值模拟分析 |
| Technology and Numerical Simulation of Pneumatic Control Unit Bracket Counterpressure Craft |
| 投稿时间：2016-06-01 修订日期：2016-07-10 |
| DOI：10.3969/j.issn.1674-6457.2016.04.005 |
| 中文关键词: 支架 流动控制技术 背压 等效应力 成形载荷 |
| 英文关键词: bracket FCF counterpressure effective stress forming load |
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| 中文摘要: |
| 目的 背压成形工艺是一种能够控制材料塑性流动的流动控制技术，研究背压工艺在气动控制单元支架零件成形中的可行性。 方法 针对支架零件特殊结构设计工艺方案，结合有限元数值模拟技术，利用 DEFORM-3D 软件，模拟分析了支架零件的背压成形过程，获得了成形过程中的等效应力分布状态及成形载荷的变化情况。 结果 通过模拟结果及工艺试验结果显示，零件下端薄壁状支脚充填效果较好，两端高度一致，端面平整。 结论 验证了背压工艺在支架零件成形中的可行性。 |
| 英文摘要: |
| Counterpressure is a flow control forming technology which can control the plasticity flow of materials. The aim of this paper is to study the feasibility of counterpressure craft in the forming process of pneumatic control unit bracket. Aiming at the technology design proposal for the special construction of bracket and based on the FEM simulation technology, the counterpressure process of bracket was analyzed by DEFORM-3D software. The changes of stress state and forming load were obtained. Both of the simulated results and industrial test showed that the bottom thin-walled feet of parts were filled well with same height and smooth plane. The feasibility of the counterpressure craft in the forming of bracket parts has been verified. |
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