This article introduced the design principle and characteristic, also appended irregular piperoller design diagram.
介绍了该法的设计原理和特点，并附有异型管孔型设计图。
2
Based on analysis of the characteristics of steel piperoller die drawing process, the analytical equation for the drawing force during roller die drawing operation is derived.
分析了钢管辊拔的特征，推导出辊拔时辊拔力的解析式。
3
On basis of CAD and CAPP, we research and develop one set of design program system for welded piperoller. This paper introduce us function and parameter design method of program system.