{"title":"A skeletal line-based printing path planning method for continuous fiber reinforced composite structures","authors":"Yamin Li , Xiaobao Zhi , Xin Yan , Jiancheng Hao , Shangqin Yuan , Tong Gao , Jihong Zhu , Weihong Zhang","doi":"10.1016/j.addma.2025.104960","DOIUrl":null,"url":null,"abstract":"<div><div>Continuous fiber-reinforced composite (CFRC) 3D printing integrates the benefits of additive manufacturing and advanced composites, enabling the fabrication of complex geometries with enhanced mechanical performance. However, CFRC printing faces significant path planning challenges. Conventional path generation methods frequently introduce printing defects such as voids and fiber misalignment, which substantially compromise the structural integrity of printed components. This paper proposes a novel skeletal line-based continuous path planning methodology that optimizes both manufacturability and mechanical strength, which is especially suitable for beam-like structures. The approach begins with extraction of the part's medial axis skeleton, followed by strategic decomposition into simplified sub-curves through skeleton node disconnection. Each sub-curve undergoes offset-based sub-path planning, after which the generated sub-paths are intelligently reconnected to form continuous loops. The process culminates in global path continuity through systematic loop interconnection. Experimental validation was performed to evaluate the efficacy of the proposed methodology. Comparative analysis demonstrates that our approach significantly reduces printing-induced defects while improving mechanical performance relative to conventional path planning techniques, including the Connected Fermat Spiral (CFS) method.</div></div>","PeriodicalId":7172,"journal":{"name":"Additive manufacturing","volume":"111 ","pages":"Article 104960"},"PeriodicalIF":11.1000,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Additive manufacturing","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214860425003240","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0
Abstract
Continuous fiber-reinforced composite (CFRC) 3D printing integrates the benefits of additive manufacturing and advanced composites, enabling the fabrication of complex geometries with enhanced mechanical performance. However, CFRC printing faces significant path planning challenges. Conventional path generation methods frequently introduce printing defects such as voids and fiber misalignment, which substantially compromise the structural integrity of printed components. This paper proposes a novel skeletal line-based continuous path planning methodology that optimizes both manufacturability and mechanical strength, which is especially suitable for beam-like structures. The approach begins with extraction of the part's medial axis skeleton, followed by strategic decomposition into simplified sub-curves through skeleton node disconnection. Each sub-curve undergoes offset-based sub-path planning, after which the generated sub-paths are intelligently reconnected to form continuous loops. The process culminates in global path continuity through systematic loop interconnection. Experimental validation was performed to evaluate the efficacy of the proposed methodology. Comparative analysis demonstrates that our approach significantly reduces printing-induced defects while improving mechanical performance relative to conventional path planning techniques, including the Connected Fermat Spiral (CFS) method.
期刊介绍:
Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects.
The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.