Effect of some process parameters on geometric errors in twopoint incremental forming for Al-Cu-Mg Aluminum Alloy

10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes

Li, Xiaoqiang^1 ; Han, Kai^1 ; Yu, Honghan^1 ; Zhang, Yongsheng^1 ; Li, Dongsheng^1

Beihang University, 37 Xueyuan Road, Beijing

100191, China^1

关键词: Adjacent layers;    Aircraft parts;    Feed-rates;    Geometric errors;    Incremental forming;    Process parameters;    Shape errors;    Step size;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032078/pdf
DOI  :  10.1088/1742-6596/734/3/032078

来源: IOP

【 摘 要 】

Two point incremental forming receives widespread study with its advantages of economy and flexibility in small batch products, such as aircraft parts. Aircraft parts, however, are rigorous in their shape errors. In this paper, one real airplane part is selected and formed with different process parameters to investigate the shape error level of part. Comparing the geometric errors caused by different process parameters, such as tool diameter, step size, feed rate and tool path, it is found that the geometric errors reduce as tool diameter increases. Meanwhile, the effect of step size is not linear. Influence law of feed rate is various with different other parameters. The bidirectional tool path, having opposite processing direction at adjacent layer, reduces the errors.