Análisis estadístico de los principales parámetros del proceso de deformación incremental–SPIF que contribuyen al cambio de la rugosidad en una geometría experimental

Abstract

Over time the process of incremental deformation of sheet  metal without matrix in its variant (SPIF), has been developed  in different countries with the aim of meeting the needs of  flexible production with no investment in tooling and low  production costs. As in any manufacturing process is important  to obtain a surface quality of the part that meets customer  needs, this variable is evaluated by the average roughness  (Ra). For this reason the purpose of this study is to investigate  the influence of the variation of three process parameters and  determine which of them contributes in greater proportion to  the change in the average roughness (Ra) measured parallel  and perpendicular to the path followed by the tool. Besides  this, it wants to validate the impact that has the spindle speed  in the analyzed variable and the orange peel defect. To this end,  a full multifactorial design of experiments with three factors  and two levels () and three replicates were performed, in order to obtain greater reliability in the model. Subsequently, an  analysis of variance is executed and the results are formalized,  finding which parameters influence more than others in  changing roughness and how the orange peel defect depends  on the spindle speed. Additionally, the results are compared  with the authors cited. The aspects developed in this study  highlight the importance of improving quality variables in any  field of sheet metal processing in the international industrial  environment.