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1·Basing on the theory of single forming, the mathematical model of progressive forming of open-seam pipes is established.

在板料单次折弯成形理论的基础上，建立了直缝管筒逐步折弯成形的数学模型。

2·It has been recommended a technology and die of bending ring with analysis of its forming process, using in that of bending ring in progressive forming die.

介绍一种卷圆工艺和模具，并对模具弯曲成形过程进行了分析，指出该方法可以用于级进模上成形。

3·A description has been made on a structure and principle of progressive die used on a general press for shear, upsetting and automatic feed used for forming small axial parts.

介绍了用在通用压力机上成形小型轴类零件的一种新型切断、冷镦自动送料连续模的结构形式、工作原理和设计要点。

4·Through analyzing the forming process of the comer pull buckle part, designed a cutting-bending-blanking progressive die. And introduced die working principle.

通过对转角拉扣五金零件的工艺分析，设计了一款切折弯曲落料级进模，同时对模具工作过程作了介绍。

5·Ring rolling is a high efficient rolling method for manufacturing seamless rings, which is a progressive partial plastic forming technology.

环件轧制是无缝环件生产的一种高效的先进加工方法。

6·The progressive die well overcame the difficulties of forming small_sized parts with complicate curving shapes with progressive dies. It explored an effective way for the forming of similar parts.

该模具较好地解决了小尺寸、较复杂弯曲零件用级进模成形的问题，为类似零件的成形探索了一条行之有效的途径。

7·Dr Tuja will build a brighter future for Kachin State by forming the Kachin State Progressive Party representing the Kachin nationals, it concluded.

评论结论“杜嘉博士成立代表克钦各族人民的‘克钦邦进步党’建设克钦邦光明的未来”。

8·Combining with analysis of reservoir forming conditions, favorable location of volcanic reservoirs has been point out, thus providing geological basis for progressive exploration and...

结合油气成藏条件分析，指出该区火山岩油气分布的有利部位，为指导该区火山岩下一步滚动勘探开发提供了地质依据。

9·And smaller sizes, and this issue we designed a multi-position progressive die forming.

并且尺寸较小，本课题设计了一个多工位级进模成型。