Aiming at the unstable fracture force of V-groove components made of 13Cr11Ni2W2MoV stainless steel during batch processing, this study proposes a stability optimization method based on the control of tool machining frequency. Firstly, comparative experiments on machining times and tool wear are carried out, and a mathematical model describing the variation of tool corner wear with machining frequency is established. Secondly, sampling tests of fracture force are conducted with the measured V-groove diameter and tool machining times as variables, to explore the action mechanism of the two factors on the fracture force of components and clarify the evolution law of fracture force at different tool wear stages. Finally, based on the fracture force test data of V-groove components under various wear conditions, the influence of tool wear on mechanical properties is analyzed, and the threshold of the maximum allowable tool machining times that ensures qualified fracture force is determined. The results of small-batch trial production verify that the proposed method can effectively reduce the discrete deviation of component fracture force and significantly improve the quality stability of batch machining.
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