Laser beam processing, especially with short and ultra-short pulses, stands at the forefront of innovative material processing techniques. The ability to manipulate materials with high precision and minimal thermal impact makes these methods particularly powerful. However, the complex interplay of laser-material interactions across a broad spectrum of pulse durations, from femtoseconds to nanoseconds, coupled with varying material properties, poses significant challenges. Achieving a comprehensive understanding of the underlying process dynamics remains elusive, necessitating advanced simulation tools to unveil the intricacies of different absorption and ablation mechanisms. In response to this need, our team has developed a sophisticated 3D multiphysical simulation framework [1]. Originally focused on macro laser processes such as welding, this framework has been significantly enhanced to accommodate the intricate dependencies on laser intensity and material characteristics specific to micro-processing applications. By incorporating models that account for laser intensity-dependent and material-specific absorption and ablation mechanisms, our approach offers unprecedented insights into the multifaceted nature of laser-material interactions. This talk will highlight selected topics within our research, showcasing the framework's capabilities through the example of femtosecond laser pulse ablation of copper. For instance, Fig. 1 exemplifies the necessity of integrating a two-temperature model alongside a non-linear absorption model to accurately simulate the rapid energy deposition and complex thermal dynamics involved in ultra-fast laser processing. Through these advanced simulations, we aim to shed light on the fundamental mechanisms driving laser micro-processing, paving the way for enhanced precision and efficiency in future applications.