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METHOD FOR CALCULATING REGULATION AND CONTROL RESIDUAL STRESS PROCESSING PARAMETERS BY MEANS OF PARAMETER INVERSION
METHOD FOR CALCULATING REGULATION AND CONTROL RESIDUAL STRESS PROCESSING PARAMETERS BY MEANS OF PARAMETER INVERSION
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机译:参数反演计算调节与控制残余应力加工参数的方法
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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.
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