Analysis of Variance for Surface Roughness Produced During Single Point Incremental Forming Process

Abstract

Attaining required surface roughness is predominantly important in case of any sheet metal component. Single point incremental forming (SPIF) is one of such processes used for stepwise forming of sheet component directed and controlled by a pre-defined computer aided program for obtaining desired geometry. To investigate the significance of design or input parameters on the characteristic and generating output of the response variables, analysis of variance (ANOVA) has been performed. It also gives a clear depiction of the contribution of parameters on generating the required response. Thus, a campaign of experiments with its corresponding statistical analysis has been carried. Response surface methodology is successfully applied for analyzing the effect of variation in process parameters like spindle speed variation, wall angle or incremental step on surface roughness. By this attempt, augmentation in the possibility of improved combination of process parameters can prolifically conduce to minimum surface roughness.