Study of new ultrasonic welding method using vibration of planar locus

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K21409
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Material processing/Microstructural control engineering; General applied physics
• Research Institution: Nihon University
• Principal Investigator: ASAMI Takuya 日本大学, 理工学部, 助手 (60706571)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 超音波接合 / 異種金属 / 縦振動 / ねじり振動 / 複合振動 / 振動軌跡 / 面状軌跡

Outline of Final Research Achievements

In this study, for the purpose of practical application of ultrasonic welding method using planar locus vibration combining linear locus vibrations, we first developed a vibration source that generates planar locus vibration. Next, we examined the welding characteristics between Al and Cu plate. As results, we succeeded in generating a planar locus by a vibration source using longitudinal and torsional transducers. Next, we found that the welding by the planar locus can obtain a welding strength of about 600 N at 0.6 s irrespective of the installation angle of the welded sample from the welding characteristics using the welding tip with a diameter of 4.2 mm. On the other hand, vibration of linear locus of longitudinal vibration and torsional vibration showed that the welding strength varies depending on the installation angle, and there are also angles at which welding cannot be performed.

Free Research Field

音響・超音波工学