Resistance heated stir welding
US5829664A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1996 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Nov 15, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/16
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for welding together two workpieces includes the steps of abutting workpieces together along respective edges of each of the workpieces, and locating one end of a rotatable tool astride the edges and against the workpieces. The tool is provided with a relatively narrow pin extending from the working end of the tool to engage the workpiece edges. The tool and pin are rotated to heat the workpiece edges, and the tool and workpieces are relatively moved. Electric current is supplied between the workpiece edges and the pin, with electrical resistance occurring between the workpiece edges and pin to provide heat in addition to the heat generated by friction occurring between the pin and workpieces to weld the workpieces together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.