graduated from the University of Illinois at Urbana-Champaign with a Bachelor's degree in engineering mechanics and is now pursuing a master's in Curriculum and Instruction through the Digital Environments for Learning, Teaching, and Agency (DELTA) program. She is interested in engineering design and lends her technical background to her research with the Collaborative Learning Lab, exploring how to improve ill-structured tasks for engineering students in order to promote collaborative problem solving and provide experience relevant to authentic work in industry.
Temperature control is critical in manufacturing of the multifacet bulk metallic glass (BMG) knife edge. The temperature control in thermoplastic forming process could make a significant effect on the type of deformation, which ultimately results in the final blade edge shape. The controller selection is based on the knowledge of the model from system identification, the performance of the controllers, and the feasibility of the implementation to the testbed. In this study, temperature control, using fuzzy logic, is implemented along with auto-regressive exogenous, ARX model, which can maintain the steady-state temperature within the range of ±2.5 K. With this proposed controller, experiments have shown similar or better results of multifacet blade geometries than those manufactured using proportional–integral–derivative (PID) controller. The blade edge samples are successfully manufactured with the average straightness and the edge radius of the blade of 3.66 ± 0.5 μm and 25.7 ± 6 nm, respectively.
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