Abstract
The surface properties are important to evaluate the quality of injection molded products. The spectrum analysis was introduced to clarify the surface roughness of the injection molded products with emboss. Moreover, the influence of polymer temperature and pressure on the surface properties was investigated by using the injection molding analysis.The results of a new evaluation method in spectrum analysis proposed in this study were in agreement with the observation results, and showed the validity in the numerical evaluation of the surface state of emboss. Moreover, the polymer surface temperature and pressure obtained from the numerical analysis showed the good agreement with the tendency of evaluation results. From the experimental and numerical results, it was considered that the new evaluation method can be proved to be useful for the surface properties of emboss and can be applied to the optimum mold design with emboss.
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