Enhancing efficiency in hot stamping of polymethyl methacrylate foils: computer analysis and modeling

Abstract

ABSTRACT This work is leading the way in developing a new method to evaluate the efficacy of hot stamping on polymethyl methacrylate (PMMA) foils. The art of hot stamping, which involves stamping, heat, and pressure to produce elaborate images on flexible foil surfaces, has long been prized for its artistry. A thorough examination of the embossing mechanism is complicated by the fact that different process factors might result in different levels of quality for embossed patterns. This study stands out for its creative approach to hot stamping process optimisation. Traditionally, resource-intensive and time-consuming empirical studies are used to determine the ideal process conditions. By using computer analytic techniques, this research, on the other hand, presents a novel way for quickly and precisely determining the most effective process parameters. Furthermore, by exploring the evolution of the embossing phenomena utilising cutting-edge methodologies like the finite element method (FEM) and creative reproduction approaches, this work explores the unexplored area. A thorough analytical model is carefully created, accounting for temperature-specific stress characteristics, strain rates, stress distribution, and the softening characteristics of the elastic foil. The research makes a unique contribution by precisely characterising the stress hardening, deformation, and thermal expansion of PMMA materials. This paves the way for extrusion analysis utilising customised processes.