Numerical and experimental investigation of the microstructure evolution during precision machining
The Research Project
Precision machining is a vital technology for manufacturing high-performance components in industries such as aerospace, microelectronics, and medical devices, where surface quality directly impacts the performance of them. A critical challenge lies in achieving ultra-smooth surfaces with roughness at the nanometer scale, as microscopic material behavior-such as grain deformation, chip formation, and shear band development - directly impacts surface quality. These phenomena are complex and not yet fully understood, limiting the ability to optimize machining processes.
My doctoral research addresses this gap by focusing on technically pure copper and other related alloys, the model material widely used in industrial applications. The project aims to uncover how microscopic structures evolve during precision machining and how these changes correlate with surface integrity. By integrating advanced computational methods (finite element simulations, crystal plasticity finite element simulations, finite element coupled cellular automata simulations, multiscale simulations) with orthogonal cutting experimental validation, the study will provide a theoretical foundation to guide the design of more efficient and reliable machining strategies.
What I need the IRB for
The IRB grant is essential to support the international dimension of my doctoral research, which involves collaborations across at least three countries (Germany, the United States, and China). Its flexibility and continuity will enable me to efficiently organize participation in international conferences, arrange short-term research visits, and conduct collaborative research abroad. These international activities are crucial for expanding my academic network, gaining valuable expert feedback, and enhancing the visibility of my research within the global scientific community. In short, the IRB will provide the funds I need to expand my network and establish myself as a visible contributor to the field, ensuring the long-term success and international impact of my doctoral studies.