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Keywords:

  • fine hydro-blanking;
  • fine blanking;
  • FEM;
  • taguchi-FE method;
  • hybrid of ANN with GA

Abstract

Optimization of the process of the fine hydro-blanking is proposed. In this approach, the V-ring indenter carved on the work piece substitutes for the guide plate that is used by the conventional fine blanking and is pressurized by hydraulic pressure. In addition, the counter force is also replaced by hydraulic pressure to produce a uniform back-pressure by acting as the ejector. To find the final optimal solution, the Taguchi-FE method is adopted to simulate and find the optimal factors according to the Taguchi technology. Once the optimal factors were chosen, a hybrid system that combined the artificial neural network (ANN) with the genetic algorithm (GA) is used to search and find the final optimal solution. It was observed that the V-ring cavity on the work-piece has the same efficacy as conventional fine blanking. In addition, the results of the experiment and finite element simulation using the optimal factors were compared. It was found that the study could achieve its stated objectives.