The paper suggested a draw bead model in which Bauschinger effect and incline of neutral layer were taken into account.

建立了考虑板料中性层偏移、包辛格效应等因素的拉延筋解析模型。

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Proper layout of draw bead is one of the key ways on controlling forming quality of ram parts in automobile panel formation.

合理布置拉延筋是汽车覆盖件成形中控制冲压件成形质量的主要手段之一。

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The application of equivalent draw beads to sheet forming blank design is studied and the ideal of blank design using revering method combined with equivalent draw bead is conceived.

研究了在板料成形毛坯设计中加入等效拉延筋进行计算的毛坯设计方法，提出了利用反向方法结合等效拉延筋进行毛坯设计的设计思想。

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Now they draw a bead on more sophisticated services--engineering, research and development, and designing auto parts, sections of aircraft wings and chips for wireless services.

FORBES: Magazine Article