Abstract:

Magnesium is light, and in terms of its durability and especially its high resilience rate, it begins to replace structural metals such as steel and aluminum, and its shaping with plastic shaping methods has commercial importance. Extrusion, which is one of these methods, is usually applied to light metals, by placing the work piece in a cave, by applying the metal pressure through the cave, by passing the material from a pattern with product geometry. The knowledge of the shaping force to be applied in the extraction method is an important factor in the selection of the template material and determination of the appropriate pressure capacity. In this study, the effect on the extraction force of the template parameters, such as the input diameter of the template, the angle of the template and the length of the template channel, was studied in the extraction with the same extraction rate patterns using the Taguchi L9 Orthogonal Experimental Design. For this purpose, 3 different levels have been evaluated and parameters have been evaluated. The experimental study has reduced the number of experiments to 27 using the Taguchi method to reduce the time of the experiment by performing less experiments with the same information to 9 experiments. The results were determined by the statistical methods of Varyans Analysis (ANOVA). In the assessment, the most influential pattern parameter on the extrusion force was 68.48% of the pattern entrance diameter. In addition, it has been found that the extraction force increases with the fall of the template input diameter, the extraction force decreases with the increase of the template angle, and the strength needed to shape increases with the length of the template channel. As a result, the interaction of different pattern parameters with the extraction force has been determined and the appropriate pattern design that can provide the lowest extraction force has been optimized.

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