Abstract
A training system for improving the performance of self-threading screw tightening operations was developed. The system consists of two parts: (1) Training for the use of a driver without screws in order to make trainees learn the control of a driver to maintain the ideal and alowable maximum vertical pressure ad driver tilt, and the ideal timing for releasing the driver from the screw: (2) Training for actual operation by referring to the visual feedback information. The result of the experiment using 20 subjects showed that using this training system the maximum vertical pressure level was improved by the fctor of twice (doubled) and the performance index was improved 1.4 times.
