PDF(Pubmed)
Abstract：
In principle, after all manufacturing processes are performed, a set of residual stresses occur in the product that have their particular distribution given the manufacturing process performed. The residual stresses must be removed to achieve the desired dimensional accuracy and quality. Among stress-relieving processes performed for a piece following the manufacturing process, we can refer to thermal and vibratory stress relief (VSR). Both methods perform the same function as they enter a part or all of a piece into the plastic phase, causing a fracture of residual stresses to be released with local plastic deformations. The process is as follows: The stress induced by thermal or vibratory loads is added to the residual stresses and exceeds the yield stress. This research, which is focused on VSR, aims to evaluate the effect of the main parameters of the VSR method, including load amplitude or amount, load application frequency, and cycle numbers. The general trend of the problem is that the VSR process is performed for a piece with residual stress, and the effect of the abovementioned parameters on reducing its residual stresses is evaluated.
摘要：
原则上,在执行所有制造过程之后，在产品中出现一组残余应力，这些残余应力在给定的制造过程中具有特定的分布。必须去除残余应力以实现所需的尺寸精度和质量。在制造过程之后对工件执行的应力消除过程中，我们可以参考热和振动应力消除（VSR）。两种方法都执行相同的功能，因为它们将零件的一部分或全部输入到塑性阶段，导致断裂的残余应力被释放与局部塑性变形。过程如下：由热或振动载荷引起的应力被添加到残余应力中，并超过屈服应力。这项研究,专注于VSR，目的是评估VSR方法主要参数的效果，包括负载幅度或量，负载应用频率，和周期数。该问题的总体趋势是，对具有残余应力的工件进行VSR工艺，并评估了上述参数对降低其残余应力的影响。
