本文应用滑移线场理论，研究了方盒形件拉深毛坯的展开尺寸计算方法，给出了有关的计算公式。
Applying the theory of slide line field, the paper discusses the method of determining the sizes of blank for square box and gives the relevant calculating formulae.
具有特殊斜面的冲压件展开尺寸计算在众多的冲压工艺书籍和模具设计手册中鲜有论述，在实际工作中是个难题。
Calculation of development size of pressing with special incline is not discussed in many press technology books and die design manuals, and it is a difficult problem in real working.
本文提出了复杂拉深件展开尺寸的计算方法。
In this paper calculation method of complex drawing piece on unfold size is given.
板材成形中同样存在着计算坯料尺寸的问题，如弯曲件展开尺寸的计算，轴对称拉深件坯料尺寸的确定等。
The similar problem on computing blank size also exists in sheet forming, such as spreading size of bending piece, blank size of axial symmetry parts by deep drawing.
本文对微机计算具有对称外轮廓曲线的圆简零件板金下料的展开尺寸进行了研究。提出了板金下料的通用程序，从而提高了下料尺寸的精度和效率。
In this research of Calculation of spread dimensions of a cylindrical unit possessed symmetrical outline, a general program with high precision and efficiency is advanced.
从下料展开尺寸的计算、裁剪、直缝焊接、整圆、压装、环缝焊接、检漏等都有一定的技术难度。
Size is expected to start from the calculation, cutting, straight seam welding, the whole round, press-fit, girth welding, leak detection, have a certain degree of technical difficulty.
实际工作中，常常会发现有的弯曲件经模具弯曲后的实际尺寸与预先计算的展开料尺寸有较大偏差。
In the actual work, it is often discovered that there is a big deviation between actual size of some bending parts after die molding with computing size.
该方法在计算大尺寸空泡的后向散射时不受微粒尺寸参数和折射率的限制，且避免了复杂的级数形式，与基于米散射理论或德拜级数展开的算法相比，具有更快的运算速度。
The calculation process of the method is independent of size parameters, and it is more stable and faster than the traditional methods based on Lorenz-Mie theory or Debye-series expansion.
该方法在计算大尺寸空泡的后向散射时不受微粒尺寸参数和折射率的限制，且避免了复杂的级数形式，与基于米散射理论或德拜级数展开的算法相比，具有更快的运算速度。
The calculation process of the method is independent of size parameters, and it is more stable and faster than the traditional methods based on Lorenz-Mie theory or Debye-series expansion.
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