然后，在同一个地方，把它弯回去形成反方向的直角。
Then, at the same place, bend it back to form a right-angle in the opposite direction.
倒钩：武器或工具，如箭或鱼钩的尖头上按相反方向弯回去的尖钩。
Barb: a sharp point projecting in reverse direction to the main point of a weapon or tool as on an arrow or fishhook.
回弹一直是影响型材拉弯成形质量的重要因素，影响拉弯回弹的因素很多。
Springback is one of the important factors that influence the forming quality of blanks. Many parameters influence the springback.
为解决级进模具使用的带料上的局部折弯回弹的精度问题，本文建立了折弯变形区的过压量模拟模型。
In order to acquire the local bending spring-back accuracy of sheet metal strip of a progressive die design, the thesis aims to build ironing depth simulation model in a bending deformation zone.
本文对前人的工作进行了回顾和总结，分析了滚弯回弹理论公式产生误差的原因。
In this paper, previous work about the theoretical formula of bending springback has been reviewed and summarized, and the difference between the theoretical and the practical results analyzed.
本文对前人的工作进行了回顾和总结，分析了滚弯回弹理论公式产生误差的原因。
In this paper, previous work about the theoretical formula of bending springback has been reviewed and summarized, and the difference between the theoretical and the practical results analyzed.
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