Abstract
The fine blanking product cost can be increased, however, while the precise fine blanking tool and high cost fine blanking press are required. Therefore it is very important to design the fine blanking tool in view of life expectancy of punch. In this paper the fatigue simulation of fine blanking tool punch for recreation vehicle seat recliner sector tooth was conducted with using the commercial FEA software ANSYS in order to evaluate the life expectancy of the fine blanking tool punch. Initially, the material properties were tested, the fine blanking tool was designed for production experiments. The modelling of tool elements and the fatigue simulation according to repeated loads was conducted. As a result of fatigue simulation, the fine blanking tool punch for seat recliner sector tooth had been fractured with 11,121 strokes. In the fine blanking production experiments, the fine blanking tool punch had to be regrinded, after it was used with 10,160 strokes. It would be found that the fatigue simulation of the fine blanking tool punch was conducted with an error of 8.6% .
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