夏胡林,李明骜,何昌涛,等.铝合金汽车覆盖件前盖外板冲压工艺开发及优化[J].精密成形工程,2025,17(2):1-10.
XIA Hulin,LI Ming'ao,HE Changtao,et al.Development and Optimization of Stamping Process of Front Cover Outer Plate of Auto-body Panel Prepared by Aluminum Alloys[J].Journal of Netshape Forming Engineering,2025,17(2):1-10. |
| 铝合金汽车覆盖件前盖外板冲压工艺开发及优化 |
| Development and Optimization of Stamping Process of Front Cover Outer Plate of Auto-body Panel Prepared by Aluminum Alloys |
| 投稿时间：2024-11-16 |
| DOI：10.3969/j.issn.1674-6457.2025.02.001 |
| 中文关键词: 铝合金 冲压工艺 覆盖件 数值模拟 参数优化 |
| 英文关键词: aluminum alloy stamping process covering parts simulation parameter optimization |
| 基金项目: |
|
| 摘要点击次数: 328 |
| 全文下载次数: 47 |
| 中文摘要: |
| 目的 针对汽车覆盖件前盖外板冷冲压成形过程中可能出现的拉裂、起皱和变形不均匀等问题，利用Autoform软件优化工艺参数。方法 以厚度0.95 mm的铝合金板料为原材料，基于CATIA三维建模软件构建覆盖件前盖外板的三维模型，利用AutoForm软件对覆盖件前盖外板的拉延成形过程进行数值模拟分析，通过单因素和正交实验优化拉延工艺参数，提高覆盖件产品成形质量。结果 单因素实验结果表明，当摩擦因数为0.1、冲压速度为200 mm/s时，随着压边力由1 200 kN增至2 200 kN，产品的最大减薄率由14.74%增到17.37%，安全区占比由81.5%增到84.66%;当压边力为1 600 kN、冲压速度为200 mm/s时，随着摩擦因数由0.1增至0.18，产品最大减薄率由15.79%增至19.47%，安全区占比先由83.64%增至84.69%，随后降低至84.13%;此外，冲压速度变化对产品的最大减薄率和安全区占比影响不明显。正交实验结果表明，当压边力为1 400 kN、摩擦因数为0.1、冲压速度为300 mm/s时，前盖外板产品冲压最大减薄率最优;在压边力为1 700 kN、摩擦因数为0.16以及冲压速度为400 mm/s条件下，前盖外板产品的冲压安全区占比和成形质量最优。结论 最优工艺参数如下:压边力为1 700 kN、摩擦因数为0.16、冲压速度为400 mm/s。 |
| 英文摘要: |
| The work aims to apply AutoForm software to simulate the stamping process of the front cover outer plate of auto-body panels prepared by aluminum alloys to optimize the process parameters and solve the possible problems such as pulling crack, wrinkling and uneven deformation in the stamping process. Aluminum alloys sheets with a thickness of 0.95 mm was employed as the raw material, and a 3D model of the front cover outer plate was constructed based on the CATIA 3D modeling software. The AutoForm software was applied to conduct a numerical simulation analysis on the stamping process of the front cover outer plate of auto-body panels. The stamping process parameters were optimized through single factors and orthogonal experiments to improve the formation quality of the auto-body panel products. The single factor experiment results illustrated that when the friction coefficient was 0.1 and the stamping speed was 200 mm/s, the maximum thinning rate of the product rocketed from 14.74% to 17.37% and the proportion of the safety zone ascended from 81.5% to 84.66% with the increase of the blank holding force from 1 200 kN to 2 200 kN. When the blank holder force was 1 600 kN and the stamping speed was 200 mm/s, with the friction coefficient increasing from 0.1 to 0.18, the maximum product reduction rate increased from 15.79% to 19.47%, and the proportion of safety zone first ascended from 83.64% to 84.69%, and then declined to 84.13%. Meanwhile, the change of stamping speed exhibited no obvious influence on the maximum thinning rates and the safe zone ratio of the products. Additionally, when the blank holding force was 1 400 kN, the friction coefficient was 0.1 and the stamping speed was 300 mm/s, the orthogonal experiment results demonstrated that the maximum thinning rate of the product was the best. When the blank holding force was 1 700 kN, the friction coefficient was 0.16 and the stamping speed represented 400 mm/s, the product stamping safety zone occupied the best proportion and formation quality. The optimal process parameters are as follows:blank holder force 1 700 kN, friction coefficient 0.16 and stamping speed 400 mm/s. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501719号