Title: MULTI-SOURCE MACHINE LEARNING AND THERMOPLASTICS ENHANCED AEROSTRUCTURE MANUFACTURING
Authors: John Gangloff, Wenping Zhao, Soumalya Sarkar, Sudeepta Mondal, Lei Xing, Abhijit Chakraborty, Amit Surana, Benjamin Bedard, Justin Alms
Abstract: Raytheon Technologies Research Center, together with Collins Aerospace and Oak Ridge National Laboratory is developing an Artificial Intelligence (AI) / Machine Learning (ML) guided solution to advance the assembly of high performance and lightweight thermoplastic composite (TPC) aerospace products. The solution aims to lower risk & reduce lead time for aircraft aerostructures, based on induction welding (IW) of TPCs to enable high-speed & low-cost production. Cost & lead time of IW process development is reduced by replacing traditional empirical methods with optimization methods that merge AI/ML, physics-based IW process simulations, and IW experiments. A multi-source AI/ML architecture is developed using TPC-IW simulation & experimental data. The ML framework enables fast and robust search of the process parameter design space for the creation of optimum process recipes. Physics-based TPC-IW simulations are assembled and exercised using electromagnetic and heat transfer process models. TPC-IW experimental hardware, software, and system components are assembled to build enough heat at the TPC joint interface to initiate fusion bonding. Single-lap shear mechanical testing of ML-informed IW samples demonstrated targeted joint strengths. Overall, an IW process optimization time reduction of ~2X was demonstrated by implementing the developed ML framework
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Conference: SAMPE 2023
Publication Date: 2023/04/17
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