预热对CF/PEEK复合材料超声焊接的影响

IF 7.1 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-09-25 DOI:10.1016/j.compstruct.2025.119668

Shin-ichi Takeda , Daichi Kugi , Hikaru Hoshi , M.J. Mohammad Fikry , Shinji Ogihara

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引用次数: 0

摘要

提高高性能CFRTPs的焊接技术效率，特别是在运输车辆的主要结构中使用的焊接技术是有必要的。本文研究了一种潜在的有效方法——预热对CF/PEEK复合材料层合板超声焊接的影响。采用5种不同的预热温度（包括室温）和3种焊接时间作为实验参数，采用超声检测和x射线CT对焊缝质量进行评估。此外，通过弯曲载荷下的短梁试验，评估了预热对力学性能的影响。适当提高预热温度增加了焊缝面积，并使层间表观剪切强度提高了约20 MPa，比室温条件下提高了约44%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Influence of preheating on ultrasonic welding of CF/PEEK composite laminates

There is a need to enhance the efficiency of welding technology for high-performance CFRTPs, particularly for use in the primary structures of transportation vehicles. This study investigated the effect of preheating—considered a potentially effective approach—on the ultrasonic welding of CF/PEEK composite laminates. Weld quality was assessed using ultrasonic testing and X-ray CT with five different preheating temperatures (including room temperature) and three welding durations as experimental parameters. Additionally, the impact of preheating on mechanical performance was evaluated through short-beam tests under bending loads. A suitably elevated preheating temperature increased the weld area and improved the apparent interlaminar shear strength by approximately 20 MPa, representing an increase of about 44 % compared to room temperature conditions.

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.