Spontaneous buckling of thin-walled injection-molded parts

Abstract

Injection molding technology has a wide range of industrial applications, especially in packaging and casing production. In this paper the spontaneous buckling of thin-walled injection molded plastic parts was described. Theoretical background along with numerical simulation and experimental validation of this phenomenon were presented.

Archives of Metallurgy and Materials

“…Setting the optimal processing parameters considerably impacts the quality of the obtained products and the production costs [19][20]. improper their settings can significantly contribute to the formation of numerous parts defects, such as: warpings [21], shrinkage, indentations or residual stresses, as well as surface defects of mouldings, which include burns, streaks, weld lines or the effect of a gramophone record [22][23][24]. in the works [25][26] it has been pointed out that the correct selection of injection moulding parameters significantly reduces warping and allows to avoid excessive processing shrinkage.…”