Damiano Pasini, McGill University

Title: Mechanics of Multi-shape Memory Kirigami Metamaterials

Abstract

The aim of our research is to develop mathematical models of metal cutting operations, machine tool vibrations, and control systems. These science-based digital models enable the virtual design of machine tools, as well as the simulation, optimization, and online monitoring of machining operations. The models predict cutting forces, torque, and power consumption during machining by considering material properties, cutter geometry, structural flexibility, and cutting conditions along the tool path. The dynamics of servo drive control systems and trajectory generation of machine tools are also considered.

An in-house-developed virtual and real-time CNC system enables the design and analysis of any five-axis machine tool controller. The virtual machining system simulates the process and adjusts the feed rate along the tool path within a CAM environment. The system is also used for online monitoring and control of machine tools and machining processes by communicating with the CNC in real time as a digital twin. The presentation will provide an overview of the fundamental research conducted in our laboratory and its industrial applications.