Before flanging auto-body panels, a feasible trimming line should be obtained, otherwise the final part shape after flanging cannot meet the dimensional requirement.
车身零件翻边前一般有修边工序，需要准确的修边线，否则翻边后零件达不到零件尺寸要求。
2
An example of determining the trimming line of a car floor part is provided to verify this method.
采用一个汽车地板零件的修边线确定算例，验证了上面提出的方法的可行性。
3
If the edge line of the stamped part still has dimensional problem, this method can be used repeatedly to optimize the trimming line.