通过多轴向增材制造对连续纤维增强热塑性复合材料进行原位修复

IF 2.9 3区 工程技术 Q2 AUTOMATION & CONTROL SYSTEMS
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引用次数: 0

摘要

摘要 CFRP(连续纤维增强聚合物复合材料)的传统修补包括修补、拼接、修补和后期固化等复杂步骤。需要进行密集的劳动作业,而且通常会出现表面质量差、界面附着力弱等问题。这项工作主要介绍一种利用 AM(快速成型制造)促进复合材料制造的原位在线修复方法。随着机器人辅助 AM 工艺的发展,修复过程中的表面粗糙度和精度可通过逐层工艺进行在线评估。为了满足结构部件损伤修复的高效性和现场要求,本研究探索了基于复合材料多轴增材制造的原位修复、激光点云在线采集和修复路径规划等方法。研究提出了一种集点云采集、测量评估和路径规划于一体的修复算法。此外,还进行了相关的机械测量,以评估界面的恢复程度。提出了一种快速在线评估和表面保形修复方法,克服了受损复合材料原位自动修复的技术瓶颈。它拓展了多轴机器人辅助 CFRP AM 的应用领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
In situ repairing of continuous fiber-reinforced thermoplastic composite via multi-axial additive manufacturing

Abstract

The conventional repairing of CFRP (continuous fiber-reinforced polymer composites) includes complicated steps of patching, splicing, repairing, and post-curing. Intensive labor work needs to be conducted, and poor surface quality and weak interfacial adhesion are usually observed. This work mainly introduces an in situ online repairing method using AM (additive manufacturing) facilitated composite fabrication. With the advances of the robotic-assisted AM process, the surface roughness and accuracy during the repairing process can be evaluated online upon layer-by-layer process. In order to fulfill the efficient and on-site requirements for repairing damage in structural components, this study explores the method including in situ repairing, laser point clouds online collection, and repairing path planning based on multi-axial additive manufacturing of composites. A repair algorithm is proposed incorporating point clouds collection, measurement evaluation, and path planning. Furthermore, relevant mechanical measurements have been conducted, so as to assess the interface degree of recovery. A rapid online evaluation and surface conformal repairing method have been proposed to overcome the technical bottleneck of in situ automatic repairing of damaged composites. It expands the application of multi-axial robot-assisted CFRP AM.

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来源期刊
CiteScore
5.70
自引率
17.60%
发文量
2008
审稿时长
62 days
期刊介绍: The International Journal of Advanced Manufacturing Technology bridges the gap between pure research journals and the more practical publications on advanced manufacturing and systems. It therefore provides an outstanding forum for papers covering applications-based research topics relevant to manufacturing processes, machines and process integration.
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