A Flexible and Accurate Additive Manufacturing Data Retrieval Method Based on Probabilistic Modeling and Transformation-Invariant Feature Learning

Author:

Fang Qihang12ORCID,Xiong Gang3ORCID,Wang Weixing4,Shen Zhen3ORCID,Dong Xisong4ORCID,Wang Fei-Yue5ORCID

Affiliation:

1. Institute of Automation, Chinese Academy of Sciences State Key Laboratory of Multimodal Artificial Intelligence Systems, , Beijing 100190 , China ;

2. University of Chinese Academy of Sciences The School of Artificial Intelligence, , Beijing 100049 , China

3. Institute of Automation, Chinese Academy of Sciences State Key Laboratory of Multimodal Artificial Intelligence Systems, Beijing Engineering Research Center of Intelligent Systems and Technology, , Beijing 100190 , China

4. Institute of Automation, Chinese Academy of Sciences State Key Laboratory of Multimodal Artificial Intelligence Systems, , Beijing 100190 , China

5. Institute of Automation, Chinese Academy of Sciences State Key Laboratory for Management and Control of Complex Systems, , Beijing 100190 , China

Abstract

Abstract Additive manufacturing (AM) is gaining prominence across numerous fields, which involves the generation of extensive data at each process stage. A relational database is a useful tool to store such AM data and streamline data retrieval. Users can specify the value of one AM variable or attribute and retrieve the corresponding record values of another attribute. This establishes the correlations between AM variables, and supports applications such as process planning. Nonetheless, such an operation is a “hard” query, which lacks reasoning capabilities and fails to provide useful information when required records are missing. It is urgent to develop a more powerful AM database to handle AM data better, which should support “soft” queries, be scalable to high-dimensional data, and maintain flexible query functionality among multiple attributes. In this paper, we construct an AM database with probabilistic modeling and transformation-invariant feature learning, which is termed as a probabilistic AM database (PAMDB). The PAMDB allows the selection of any AM attribute as a query attribute, or even multiple attributes as query attributes, to retrieve the values of other attributes, which is adapted to unseen, high-dimensional, and multimodal AM data. Two case studies were conducted for laser powder bed fusion (LPBF) and vat photopolymerization (VP). Compared with existing methods, experimental results underscore the efficacy of the PAMDBs, both qualitatively and quantitatively, in tasks that includes melt pool size prediction and scan parameter estimation in LPBF, and defect detection for the resin deposition process in VP.

Funder

Beijing Municipal Natural Science Foundation

Guangdong Science and Technology Department

National Natural Science Foundation of China

Publisher

ASME International

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