Ultrasonically joining apparatus and ultrasonically joining method
US6494976B1 · kind B1 · utility
7Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/36
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cooling device has a radiator plate and a corrugated fin for cooling an electrical component. In a manufacturing process of the cooling device, a symmetrically constructed tool section presses the radiator plate and the fin against an anvil. The radiator plate has an attaching portion where an electrical component is attached. Knurled surface for preventing a slide is formed on the tool section only at a surrounding area to prevent a deformation of the attaching portion. The tool section and the radiator plate vibrate ultrasonically in a longitudinal direction of corrugations of the fin to prevent a crack on the fin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.