Process for lap joining two kinds of metallic members having different melting points
US6037559A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Mar 17, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A circular blank made of a steel plate is lapped onto an Al-based plate in lapped areas of the Al alloy plate and another steel plate. Then, the three members are pressed by a pair of electrodes, and a welding current is allowed to flow between both the electrodes, thereby sequentially performing the melting of a current-supplied portion of the Al alloy plate and a portion near the current-supplied portion, the elimination of a molten portion by a partial bulgy deformation of the blank toward the Al alloy plate, the abutment of the bulgy deformed portion against the steel plate, and the resistance-welding between the bulgy deformed portion and the steel plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.