Investigation the Amplitude Uniformity on the Surface of the Wide-Blade Ultrasonic Plastic Welding Horn

5th Asia Conference on Mechanical and Materials Engineering

机械制造;材料科学

Nguyen, Thanh Hai^1 ; Quang, Quang Thanh^2 ; Tran, Cong Luat^1 ; Nguyen, Huu Loc^1

Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology, No. 286 Ly Thuong Kiet Street, Ho Chi Minh City, Viet Nam^1

Faculty of Mechanical Engineering, Ho Chi Minh City University of Transport, No. 2, D3 Street, Ward 25, Binh Thanh District, Ho Chi Minh City, Viet Nam^2

关键词: Aluminum alloy 7075;    Amplitude distributions;    Basic principles;    Mechanical energies;    Solid-state welding;    Ultrasonic frequency;    Ultrasonic plastic welding;    Working frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/241/1/012023/pdf
DOI  :  10.1088/1757-899X/241/1/012023

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Ultrasonic welding has been applied for joining thermoplastic components due to their advantages such as clean, fast and reliable. The basic principle is to use the mechanical energy of ultrasonic frequency vibration to produce the molten pool at the interface of the joined components under high pressure to create solid-state welding joints. Depending on the specific application, the ultrasonic horn is designed to generate suitable amplitudes on the surface of the welding zone. Uniformity of the amplitudes can be a challenge as the welding area increases. Therefore, design a welding horn in order to obtain the uniform amplitudes at the large area is significant difficult. This work presents a method for obtaining the uniform amplitudes at the working surface of the stepped wide-blade horn. Finite element method is used to analyze the amplitude distribution at the horn surface of 250 × 34 mm2with working frequency of 15 kHz and aluminum alloy 7075. The uniformity of amplitude is obtained by changing the shape of the horn.