Metal plate joining method and apparatus
US9931718B2 · kind B2 · utility
2Cited by
74References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2008 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Oct 25, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pair of upper and lower pressure rollers 3, 4 is disposed so that their axes 15, 16 are tilted in a horizontal plane in respective directions opposite to each other with respect to a straight line perpendicular to a welding line of a joint portion J. The pressure rollers 3, 4 are positively driven by corresponding electric motors 63, 64 to thereby roll the joint portion. Thus, steps defined at the joint portion can be smoothed and a step gradient can be reduced to ensure a high degree of joint strength. Thus, it is possible to prevent a step portion from being interfolded into the base material of the meal plates 5, 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.