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Deep learning for automating additive manufacturing process chains / Tobias Nickchen, M.Sc. Paderborn, 2021
Content
Table of contents
List of figures
List of tables
List of abbreviations
I Introduction
1 Introduction
1.1 Background
1.2 Motivation
1.3 Thesis Approach
1.4 Problem Statement
1.4.1 Manufacturability Analysis
1.4.2 3D Component Recognition
1.5 Solution Concepts
1.5.1 Manufacturability Analysis
1.5.2 3D Component Recognition
1.6 Overview of Disseminations
1.7 Structure of this thesis
II Additive Manufacturing
2 Foundations of Additive Manufacturing
2.1 Additive Manufacturing
2.1.1 Working Principle
2.1.2 Technologies
2.1.3 Advantages
2.1.4 Disadvantages
2.1.5 Applications
2.2 Process Chain of AM Service Providers
2.2.1 Individual Pre-processing
2.2.2 Batch Processing
2.2.3 Individual Post-processing
3 Problem Description
3.1 Manufacturability Analysis
3.1.1 Definition of Manufacturability
3.1.2 Current State and emerging issues
3.1.3 Solution Requirements
3.2 3D Component Recognition
3.2.1 Current State and emerging issues
3.2.2 Solution Requirements
III Foundations and Related Work
4 Foundations of Machine Learning and Computer Vision
4.1 Machine Learning
4.1.1 What is Machine Learning?
4.1.2 Types of Machine Learning
4.1.3 Structure of ML Algorithms
4.1.4 Algorithms
4.1.5 Transfer Learning
4.1.6 Learning from Synthetic Data
4.1.7 Data augmentation
4.2 Deep Learning
4.2.1 General Structure
4.2.2 Convolutional Neural Networks
4.2.3 Transfer Learning for Deep Learning
4.3 Explainable Artificial Intelligence
4.3.1 Necessity of Explainability
4.3.2 Methods for Explainability
4.3.3 Explainability of Deep Neural Networks
4.4 Computer Vision
4.4.1 Traditional Computer Vision
4.4.2 Machine Learning-based Computer Vision
5 Related Work
5.1 Manufacturability Analysis
5.1.1 Design Rule-based Analysis for AM
5.1.2 Simulation-based Analysis for AM
5.1.3 Machine Learning-based Analysis
5.2 3D Object Recognition
5.2.1 Object Recognition in Real-World Applications
5.2.2 3D Component Recognition in the AM Domain
IV Solution
6 Solution: Manufacturability Analysis
6.1 Solution Architecture
6.2 DL model: Spatial Hashing-based CNN
6.2.1 Perfect Spatial Hashing
6.2.2 CNN Operations with PSH
6.2.3 Memory consumption
6.3 Feedback System
6.3.1 Layerwise Relevance Propagation
6.4 Data Preprocessing
6.4.1 Data Augmentation
6.5 Decision Calculation
7 Solution: 3D Component Recognition
7.1 Solution Architecture
7.2 DL model: RotationNet
7.3 Physical Recognition Station
7.4 Training Data Generation
7.4.1 Virtual Environment
7.4.2 Physically Sound Orientations
7.4.3 Image Rendering
7.4.4 Image Augmentation
7.5 Training
7.6 Inference Data Pre-processing
V Realization, Evaluation and Conclusion
8 Realization and Evaluation: Manufacturability Analysis
8.1 Realization
8.1.1 Base Data Set
8.1.2 Evaluation Criterion
8.1.3 Data Set Labeling
8.1.4 Experimental Setup
8.2 Evaluation
8.2.1 Classification Accuracy
8.2.2 Visual Feedback
8.2.3 Secondary Requirements
8.3 Discussion
8.4 Summary
9 Realization and Evaluation: 3D Component Recognition
9.1 Realization
9.1.1 Base Data Sets
9.1.2 Training Data Generation
9.1.3 Experimental Setup
9.2 Evaluation
9.2.1 Recognition Rate
9.2.2 Secondary Requirements
9.3 Discussion
9.4 Summary
10 Conclusion and Future Work
10.1 Conclusion
10.1.1 Manufacturability Analysis
10.1.2 3D Component Recognition
10.2 Future Work
10.2.1 Manufacturability Analysis
10.2.2 3D Component Recognition
References
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