Ultrasonic bonding with variable amplitude fuzzy control based on force signals for Polymethyl Methacrylate

IF 2.3 3区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Journal of Reinforced Plastics and Composites Pub Date : 2024-06-21 DOI:10.1177/07316844241263187

Yunxiang Zhang, Jianning Zhu, Yang Sun, Yibo Sun, Li Zou, Xinhua Yang

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引用次数: 0

Abstract

Ultrasonic bonding is an emerging technology in the field of micro-assembly. Traditional ultrasonic bonding processes are controlled by time, pressure, or electrical energy, but higher precision is required for interface fusion control. In this paper, a variable amplitude ultrasonic bonding method based on fuzzy control is proposed. Two fuzzy controllers are designed by the fuzzy control algorithm with dynamic and static force signals as inputs and ultrasonic amplitude as output. In the early stage of bonding, the initial melting of the contact surface is accelerated, and the generation of overflow defects is inhibited by the realization of a large amplitude. In the middle and late stages of bonding, the whole interface fusion is achieved with smaller amplitudes to weaken the bubble defect. The bonding experiment between the micro connecting tube and substrate of polymethyl methacrylate (PMMA) is carried out to investigate the fusion of interface. The effects of different amplitude parameters on air bubbles and overflow defects are analyzed. Results indicate that the suppression of overflow and air bubbles is obvious, and the overflow ratio can be reduced to 2%. The stability and accuracy of interface fusion are improved.

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基于力信号的变幅模糊控制超声波粘接聚甲基丙烯酸甲酯

超声波键合是微组装领域的一项新兴技术。传统的超声波键合工艺是通过时间、压力或电能来控制的，但界面融合控制需要更高的精度。本文提出了一种基于模糊控制的变幅超声波键合方法。以动态和静态力信号为输入，超声波振幅为输出，通过模糊控制算法设计了两个模糊控制器。在粘接初期，通过实现大振幅，加速了接触面的初始熔化，抑制了溢流缺陷的产生。在粘合的中后期，用较小的振幅实现整个界面的熔合，以削弱气泡缺陷。微连接管与聚甲基丙烯酸甲酯（PMMA）基底之间的粘合实验研究了界面的融合。分析了不同振幅参数对气泡和溢出缺陷的影响。结果表明，对溢出和气泡的抑制作用明显，溢出率可降至 2%。界面融合的稳定性和准确性都得到了提高。

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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来源期刊

Journal of Reinforced Plastics and Composites 工程技术-材料科学：复合

CiteScore

5.40

自引率

6.50%

发文量

审稿时长

1.3 months

期刊介绍： The Journal of Reinforced Plastics and Composites is a fully peer-reviewed international journal that publishes original research and review articles on a broad range of today''s reinforced plastics and composites including areas in: Constituent materials: matrix materials, reinforcements and coatings. Properties and performance: The results of testing, predictive models, and in-service evaluation of a wide range of materials are published, providing the reader with extensive properties data for reference. Analysis and design: Frequency reports on these subjects inform the reader of analytical techniques, design processes and the many design options available in materials composition. Processing and fabrication: There is increased interest among materials engineers in cost-effective processing. Applications: Reports on new materials R&D are often related to the service requirements of specific application areas, such as automotive, marine, construction and aviation. Reports on special topics are regularly included such as recycling, environmental effects, novel materials, computer-aided design, predictive modelling, and "smart" composite materials. "The articles in the Journal of Reinforced Plastics and Products are must reading for engineers in industry and for researchers working on leading edge problems" Professor Emeritus Stephen W Tsai National Sun Yat-sen University, Taiwan This journal is a member of the Committee on Publication Ethics (COPE).