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将密栅云纹法应用于分析盒形件反挤变形过程,获得了反挤时各特征面上U场和V场云纹图.采集云纹数据后经计算机分段拟合和光滑化处理得到了位移速度场曲线,对挤压变形规律进行了研究.
The dense grille moiré method was used to analyze the anti-extrusion deformation process of the box-shaped parts, and the U-shaped and V-shaped moiré patterns were obtained on each characteristic surface during the anti-extrusion.After collecting the moiré data, the computerized fitting and smoothing The displacement velocity field curve was obtained and the law of extrusion deformation was studied.