| 摘要 |
PROBLEM TO BE SOLVED: To prevent a welding area from being reduced by distortion between a vibration-pressurizing area and a pressure-receiving area when thin layers to be welded are mutually welded using a handy-type ultrasonic welder. SOLUTION: An auxiliary soft welding layer 20a which has a higher melting point than the melting temperature of the layer to be welded and non-adhesive properties on the surface is arranged between the vibration-pressurizing area 10 and the pressure-receiving area 11. Under this constitution, the auxiliary soft welding layer 20a is deformed by clamping the layer to be welded together with the layer 20a between the vibration-pressurizing area 10 and the pressure-receiving area 11. The layer to be welded is welded in the entire area between the vibration-pressurizing area 10 and the pressure-receiving area 11 because the gap between the area 10 and the area 11 is filled. COPYRIGHT: (C)2004,JPO
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