Uncertainty Analysis of Waving Defect in Lithographic Food Can Forming Process

The objective of this study is to analyze a waving defect from a draw and re-draw of lithographic cans forming. One important aspect of lithographic can manufacturing is the aesthetic of the graphical display on the can in addition to the cost. The material used in this study is a PET-laminated tin-free steel sheet (JIS G 3315:2017) with a thickness of 0.16 mm. There are various uncertainties in the manufacturing system; namely, anisotropy, and forming process factors including the blank holder force and the friction coefficient. This study uses finite element analysis and uncertainty propagation via metamodel to analyze the effect of uncertainty in the process. An important parameter (scrap rate) and a corresponding probability density function (PDF) can be quantified from the Monte Carlo simulation.