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METHOD FOR CALCULATING REGULATION AND CONTROL RESIDUAL STRESS PROCESSING PARAMETERS BY MEANS OF PARAMETER INVERSION

机译:参数反演计算调节与控制残余应力加工参数的方法

摘要

The present invention belongs to the field of processing residual stress, and discloses a method for calculating processing parameters for residual stress control by parameter inversion. This method comprises: (a) extracting a characteristic index reflecting the residual stress distribution characteristic from a residual stress distribution curve; (b) respectively presetting initial values of processing parameters for residual stress control, calculating an initial value of the characteristic index, and drawing curves of the characteristic index over the respective processing parameters to obtain respective fitted curves; (c) respectively establishing a relation formula between respective characteristic index increment of the processing parameters and the fitting curve; and (d) assigning the values and performing inversion calculation to obtain the required processing parameters. The present invention realizes quantitative control of the processing residual stress. The algorithm is simple in operation, reduces the number of tests, lowers the production cost, improves the processing residual stress distribution of the workpiece and improves the anti-fatigue life of the components.
机译:本发明属于残余应力处理领域,公开了一种通过参数反演计算残余应力控制加工参数的方法。该方法包括:(a)从残余应力分布曲线提取反映残余应力分布特性的特征指标; (b)分别预设用于残余应力控制的加工参数的初始值,计算特征指标的初始值,并在各个加工参数上绘制特征指标的曲线,以获得相应的拟合曲线; (c)分别建立加工参数的各特征指标增量与拟合曲线之间的关系式; (d)分配值并进行反演计算以获得所需的处理参数。本发明实现了对加工残余应力的定量控制。该算法操作简单,减少了测试次数,降低了生产成本,改善了工件的加工残余应力分布,提高了部件的抗疲劳寿命。

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