標題: Development of ultrasonic direct joining of thermoplastic to laser structured metal
作者: Yeh, Ren-Yu
Hsu, Ray-Quen
機械工程學系
Department of Mechanical Engineering
關鍵字: Ultrasonic welding;Adhesion by mechanical interlocking;Metal;Plastics
公開日期: 1-Mar-2016
摘要: This work reports on an improved ultrasonic welding process for the direct joining of thermoplastic and metal. A metal thin plate was structured with grid arrays on a micro-scale level by laser irradiation. A thermoplastic part was placed on the structured region, and ultrasonic welding or ultrasonic hot welding was applied. The thermoplastic was locally melted and re-solidified in the structured grooves with very low energy input due to the tiny initial contact area of the grid tips. Single lap shear specimens and boss specimens were used to study the feasibility and performance of hybrids made by this joining method. Both shear strength and normal tensile strength were affected by changes in the grid structures and welding parameters, and the experimental results show that the micro-structure geometry of the metal plate is a major factor in the joining strength. Successful welds required that process cycle times be less than 1 s. Furthermore, the mold holding the metal sheet was heated in the ultrasonic hot welding experiments, and the heated mold significantly enhanced the joint quality. Ultrasonic hot welding appears to be a fast, low cost, and reliable method to produce plastic/metal hybrid products for electronics and other industrial applications. (C) 2015 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.ijadhadh.2015.11.001
http://hdl.handle.net/11536/129626
ISSN: 0143-7496
DOI: 10.1016/j.ijadhadh.2015.11.001
期刊: INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
Volume: 65
起始頁: 28
結束頁: 32
Appears in Collections:Articles