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Analysis of Warpage in Injection Molded Parts via Taguchi Method

Vardan Sedha, Ishita Gupta, Gauri Tyagi


Injection molding is a process for forming parts by molding material into a desired shape. In this paper, we have characterized four inputs according to which the final warpage (residual stresses) of the material varies. Those four inputs are injection pressure, injection temperature, cooling time, and holding pressure. In all these we already know that Injection Pressure has the most contribution in the final geometry. So, from the values Library we take a set of four possible values of each parameter and make an orthogonal array of that for Taguchi analysis. After testing all the possible combinations in ANOVA, we conclude the final set of parameters which give the minimum S/N ratio or minimum warpage.

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