【摘要】 深入探讨了分段成形的变形特点 ,对分段成形时缺陷产生的机理作了客观的分析 ,并对各种分段成形方法的优缺点作了评述 .同时对分段成形中的关键技术———过渡区设计作了系统阐述 ,提出了通用的过渡区设计方案 ,在实验中取得了良好的效果更多还原

【Abstract】 The deforming characteristics of multi point section forming are discussed deeply and objective analysis is made of the deficiency in section forming process. And the advantages and disadvantages of some section forming methods are commented, and the construction of transition region, the key technique of section forming, is expounded systematically with examples using this method.更多还原