摘要
针对摩托车油箱外壳成形缺陷,采用Dynaform软件对油箱外壳双片组合成形(Double-Cover Forming,DCF)过程进行了数值仿真分析,仿真结果表明侧壁起皱和局部破裂是主要缺陷。利用数值模拟与正交试验设计(Orthogonal Experimental Design,OED)相结合的方法分析和优化了拉延筋高度和压边力参数,分析表明适当增大拉延筋高度和压边力可有效抑制起皱缺陷。采用优化后的参数进行制件压延成形试验,结果表明制件成形均匀性有了较大改善,成形质量得到提高。
For the drawing defects of the motorcycle fuel tank cover, the forming process of Double-Cover Forming （DCF） was simulated by Dynaform software, and the results show that sidewall wrinkling and local rupture are main defects. Two forming parameters of draw- bead height and blank holding force were analyzed and optimized by combining numerical simulation with Orthogonal Experiment Design （ OED）, and the analysis results indicate that it is effective to suppress the wrinkling defects by increasing the above two parameters prop- erly. The part is formed with optimized parameters, and the results show that the overall forming uniformity is improved considerably. Therefore, forming quality is enhanced.
出处
《锻压技术》
CAS
CSCD
北大核心
2015年第7期29-33,共5页
Forging & Stamping Technology
基金
福建省自然科学基金资助项目(2014J01184)
关键词
油箱外壳
数值分析
参数优化
冲压成形
成形均匀性
fuel tank cover
numerical analysis
parameter optimization
stamping process
forming uniformity
