CO_2レーザによるマグネシウム合金板の曲げ加工に関する研究

概要

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The application of magnesium alloys to various products has been spreading. In this study, a laser forming of magnesium alloy plate was focused on. This paper describes the plastic bending properties and the deformation mechanism of magnesium alloy plate (AZ31) in CO_2 laser forming. In order to investigate the characteristics in the laser forming of magnesium alloy plate, the experiments were carried out under the various conditions and the bending angle and the temperature of workpiece were measured by use of a laser displacement sensor and thermo couples, respectively. The results were discussed comparing with the results of stainless steel plate (SUS304). Based on the experimental results, it was found that the bending angle greatly depended on the surface temperature. The bending deformation increased with an increase of the laser power and the repetition of the heating-cooling cycle. The bending angle of the plate continued to increase while alternately repeating an upper and lower bend. The upper side deformation was larger than the reverse side.
公益社団法人精密工学会の論文
2004-10-05