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<p>The purpose of the work is a theoretical and experimental study of the process of cantilever cold breaking by bending using the elastic deformation of the bed and the drive of the press to perform useful work—the application of the stress concentrator due to the depression of the wedge knife. Based on the analysis of the results of simulation of the separation process using the Deform software complex, recommendations are given for choosing rational parameters of the separation process. The wedge angle in the range (25…40)° is the most appropriate. The amount of work to apply the stress concentrator to rolled product with different mechanical characteristics is no more than (5…10)% of the work of breaking the rolled product. The results of the simulation of the process of separation of rolled product at the second stage, by cantilever brittle bending, prove that with a correctly chosen depth of the applied stress concentrator, the separation process can be implemented in one operation of the installation. The adequacy of the results of theoretical calculations was confirmed by experiment (error up to 5%). The implementation of the process of separating rolled products according to this scheme ensures high geometric accuracy of the obtained blanks. A developed and patented design of the installation for separating graded rolled products using the elastic energy of deformation of the bed and the drive.</p>

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Cutting of rolled metal with a stress concentrator marked by the elastic deformation of the press

  • 期刊论文

  • 发表日期：

    2025年1月24日

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  • Sergii G. Karnaukh,
  • Oleg E. Markov,
  • Igramotdin S. Aliiev,
  • Vitalii U. Stankov

摘要

The purpose of the work is a theoretical and experimental study of the process of cantilever cold breaking by bending using the elastic deformation of the bed and the drive of the press to perform useful work—the application of the stress concentrator due to the depression of the wedge knife. Based on the analysis of the results of simulation of the separation process using the Deform software complex, recommendations are given for choosing rational parameters of the separation process. The wedge angle in the range (25…40)° is the most appropriate. The amount of work to apply the stress concentrator to rolled product with different mechanical characteristics is no more than (5…10)% of the work of breaking the rolled product. The results of the simulation of the process of separation of rolled product at the second stage, by cantilever brittle bending, prove that with a correctly chosen depth of the applied stress concentrator, the separation process can be implemented in one operation of the installation. The adequacy of the results of theoretical calculations was confirmed by experiment (error up to 5%). The implementation of the process of separating rolled products according to this scheme ensures high geometric accuracy of the obtained blanks. A developed and patented design of the installation for separating graded rolled products using the elastic energy of deformation of the bed and the drive.