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Journal of Graphics ›› 2026, Vol. 47 ›› Issue (2): 411-422.DOI: 10.11996/JG.j.2095-302X.2026020411

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A study on knowledge mining and reuse for non-standard tool design based on deep belief network

WANG Mingwei1, ZHAO Jianhua1(), SUN Zhihong2, SUI Peng2, LU Xiaojun2   

  1. 1 Key Laboratory of High-Performance Manufacturing for Aero Engine, Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an Shaanxi 710072, China
    2 Shaanxi Diesel Heavy Industry Co., Ltd., Xianyang Shaanxi 713105, China
  • Received:2025-07-16 Accepted:2025-11-10 Online:2026-04-30 Published:2026-05-20
  • Contact: ZHAO Jianhua

Abstract:

In the design of non-standard tools, a strongly coupled correlation between tool features and part-machining features is identified as a typical type of implicit design knowledge. It exhibits data multimodality and multi-dimensional uncertainty, leading to difficulties in capture and reuse. Therefore, a method for tool design knowledge mining and reuse based on a Deep Belief Network (DBN) was proposed. First, targeting the two-modal data of 2D images and attribute texts associated with machining features and tool features, a dual-channel DBN was designed to perform feature extraction and fusion. Second, a DBN oriented to correlation mining was designed to obtain implicit relationships between machining features and tool features. Finally, existing tool cases were evaluated and reused through association-rule reasoning and an improved Rake algorithm. Taking the design process of a non-standard special inner-hole-groove tool as an example, the effectiveness of the method was verified by comparing the reuse results with the actual results in terms of structural and attribute information.

Key words: non-standard tool, deep belief network, implicit knowledge mining, multimodal fusion, cross-modal correlation

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