Lay out plate, sheet steel or other heavy metal and mark bending and cutting lines on work piece using protractors, compasses and drawing instruments or templates.
铺设莱板，钢板或其他重金属，用量角器，圆规和绘图工具或模板在工件上标记弯曲和切割线。
2
The author proposed a method based on feature technology which can create correct unfolding drawing of sheetmetal parts with plenty of process information.
提出了一种基于特征技术的能够生成正确的、包含丰富工艺信息的板金零件展开图的生成算法。
3
According to sheetmetal deep drawing processes, many design methods for the blank shape have been presented.