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<p>Traditional precision grinding faces challenges when processing high-speed steel (HSS) rolls. Electrochemical grinding (ECG) is a common metal processing method, where the current stability of electrochemical machining (ECM) directly affects surface quality. Limited research exists on control strategies for electrochemical machining of HSS rolls. This paper proposes an IT2 fuzzy control strategy based on processing current negative feedback. By monitoring the processing current and adjusting the cathode feed rate, adaptive control of the inter-electrode gap was achieved, and a simulation model was established. The dynamic performances of PID, fuzzy-PID, and IT2-fuzzy were analyzed, and the forming accuracy of the algorithm was verified through experiments. Results show the algorithm exhibits good dynamic performance, reducing processing current fluctuations by 87.22 %, controlling roundness error within 2.5±0.2 µm, and maintaining surface roughness at 0.063 µm. This provides a method and approach for high-quality ECG processing of HSS rolls.</p>

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Research on machining performance for electrochemical grinding of high-speed steel roll material based on interval type-2 fuzzy control

  • 期刊论文

  • 发表日期：

    2025年10月6日

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  • Long Nie,
  • Huaichao Wu,
  • Gang Cao,
  • Kui Yuan

摘要

Traditional precision grinding faces challenges when processing high-speed steel (HSS) rolls. Electrochemical grinding (ECG) is a common metal processing method, where the current stability of electrochemical machining (ECM) directly affects surface quality. Limited research exists on control strategies for electrochemical machining of HSS rolls. This paper proposes an IT2 fuzzy control strategy based on processing current negative feedback. By monitoring the processing current and adjusting the cathode feed rate, adaptive control of the inter-electrode gap was achieved, and a simulation model was established. The dynamic performances of PID, fuzzy-PID, and IT2-fuzzy were analyzed, and the forming accuracy of the algorithm was verified through experiments. Results show the algorithm exhibits good dynamic performance, reducing processing current fluctuations by 87.22 %, controlling roundness error within 2.5±0.2 µm, and maintaining surface roughness at 0.063 µm. This provides a method and approach for high-quality ECG processing of HSS rolls.