The simulative results show that stress distribution under stretching with superimposed bending is more advantageous to the reduction of spring back.
计算结果表明，先弯曲再拉伸时应力分布规律更利于减小回弹。
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.
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。
At the same time, the spring back allowance of bottoming bending of circle section rod is analyzed.
同时对圆棒料的弯曲回弹进行了理论分析。
The design of the die system of the carriage bending parts is realized: from technical calculating and spring-back rebuilding of die parts to structure design and assembling of the die system, etc;
系统实现了常见客车弯曲件的模具系统的设计：从零件的工艺计算、回弹重建到模具系统的结构设计、装配等；
The finite element analysis of the compound bending forming process is done for knives of the template. The spring back in the forming procedure is investigated.
运用有限元方法分析了模切板刀片的复合弯曲成形，对成形过程中的回弹进行了研究。
Accroding to the structure characteristics of the Santana brake pad, determined product stamping process and blank size, the die design method was introduced, and solved the bending spring back.
根据桑塔纳汽车刹车片卡子结构特点，确定该产品的冲压工艺和产品展开尺寸，介绍模具设计方案，解决产品弯曲回弹问题。
The spring-back is not only one of the most common defects in the sheet metal forming, but also one of the hardest to control deficiencies, especially in the bending process.
回弹是薄板冲压成形中最常见的缺陷之一，也是最难控制的缺陷，尤其是在弯曲成形过程中。
The spring-back is not only one of the most common defects in the sheet metal forming, but also one of the hardest to control deficiencies, especially in the bending process.
回弹是薄板冲压成形中最常见的缺陷之一，也是最难控制的缺陷，尤其是在弯曲成形过程中。
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