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| 基于数值模拟的隔热板零件冲压工艺研究 |
| Analysis and Optimization of Thermal Baffle Stamping Process Based on Dynaform |
| Received:March 26, 2014 Revised:July 01, 2014 |
| DOI：10.3969/j.issn.1674-6457.2014.04.008 |
| 中文关键词: 隔热板 DYNAFORM 数值模拟 正交试验 |
| 英文关键词: the thermal baffle Dynaform numerical simulation orthogonal test |
| 基金项目: |
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| 中文摘要: |
| 目的 研究隔热板零件冲压过程中的最优化成形工艺参数。 方法 利用 Dynaform 软件先对零件模型的成形进行了初步数值分析,根据成形后的成形极限图( FLD) 与厚度分布图,确定了合理的拉延筋分布位置与对应的锁死率;再通过正交试验研究了冲压工艺参数。 结果 得出了压边力、锁模力、板料厚度和摩擦因数对隔热板成形过程中拉裂和起皱趋势的影响规律。 结论 得到了成形过程中合理的成形工艺参数,最大减薄率控制在 22% 以下,未变形区较少。 |
| 英文摘要: |
| Objective To study the optimization of forming process parameters of insulation board parts. Methods Through the finite element analysis software Dynaform, according to the forming limit diagram ( FLD) and the thickness distribution diagram, the proper draw bead distribution and the corresponding locked rate were determined. Results The influencing rule of stamping process parameters including blank holder force, draw bead locked force and friction coefficient on the cracking and wrinkling tendency were obtained through the orthogonal test. Conclusion The optimized stamping process parameters were summarized. The maximum reduction ratio was controlled to 22% or below, with fewer undeformed zones. |
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