Generative Quality Networks (GQNs): Leveraging GenAI to Predict Unprecedented Defects in Automotive Manufacturing

Kevin Patel

Abstract: Automotive manufacturing demands rigorous quality control across stamping, welding, assembly, and final inspection to ensure safety and performance. However, predicting and detecting defects such as cracks, wrinkles, weld gaps, surface anomalies, and misalignments remain challenging due to their rare occurrence and subtle manifestations. This paper proposes a Generative Quality Network (GQN) architecture, inspired by DeepMind?s Generative Query Network, tailored for manufacturing quality prediction. The GQN leverages generative AI and domain-specific priors to learn from synthetic sensor streams, images, and inspection logs, enabling it to ?imagine? normal versus defective outcomes without extensive labeled data. We present complex simulated case studies in stamping, welding, assembly, and final inspection. Each case uses realistic synthetic data (e.g. press force curves, weld images, alignment measurements, and surface scans) to train and evaluate the GQN. Data analysis demonstrates that GQNs achieve high defect detection rates, often exceeding 95%, outperforming conventional CNN baselines. We include extensive visuals: flowcharts detailing the GQN architecture and deployment pipeline, tables summarizing data and performance, and charts illustrating training convergence, confusion matrices, and ROC curves. Results show that GQNs can predict defects earlier and more reliably, reducing reliance on post-production inspection. We discuss how integrating physical process knowledge as priors improves the model?s robustness in each domain. The proposed GQN framework highlights a path toward proactive, AI-driven quality assurance in smart manufacturing, capable of anticipating unprecedented defects before they propagate through the production line. Finally, we outline future research directions, including real-time digital twin integration and transfer learning for cross-model adaptation, and provide references to current state-of-the-art techniques from both industry and academia.

Keywords: defect prediction, generative quality network, smart manufacturing, synthetic sensor data, AI-based quality control