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Improvement of Hard Disk Drive's Arm Bending Machine Using Fuzzy Logic

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Executive Summary

Hard Disk Drive's arm (HDD's arm) is one of the key elements in the HDD assembly. This element has to have the height of the arm measured from the reference be in the required range To get such requirement, HDD's arms have to pass to a bending machine in order to measure and adjust the height of the arms accordingly. Currently, if needed, a pre-defined bending force is applied to the arm. In this paper, the fuzzy logic rule to control the bending force is proposed. From the experimental data, it is found that the performance of the proposed technique in terms of the process capability index of the arm height error is superior to the conventional technique.

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