Aimed at the difficulties in the bending forming of punching parts, the bending die with dual-punch is designed, the complex shape of this part is once formed by the ordinal action of dual-punch.

针对该冲压件弯曲成形难的问题，设计了双凸模弯曲模，通过双凸模的依次动作可一次成形该零件的复杂形状。

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The bending of pump barrel will not happen as low part fixed pumping piston going downward that only happens when it works in heavy oil well.

而泵筒下部固定泵柱塞上行时，泵筒不会发生弯曲，只是其柱塞在稠油井中下行时泵筒才会发生纵向弯曲。

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In this paper, the twice bending process for bending part with stiffners is analyzed and the proper structures of dies are designed.

分析了带有加强筋板的厚板弯曲件的两次弯曲成形工艺，并设计了合理的模具结构。

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Cloues, who became chief executive in 1998, spent a good part of his early tenure reorganizing K-Tron, outsourcing expensive processes like metal bending and getting rid of assets--selectively.

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