Projection for resistance welding of soft metals
US4495397A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1981 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Oct 13, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A projection for use in electrical resistance welding of sheet metals and thin-wall parts, a method of fabricating such projection and the use of the same are disclosed. The flanks of the projection possess internally thereof an angle of about 40.degree. to 75.degree. and externally an angle of about 40.degree. to 100.degree., and the strength of the material at the region of the flanks is about 50% greater than the strength of the neighboring basic material. The method of forming the projection contemplates fabricating the same through plastic deformation of the basic material and the dimensionally exact shaping is accomplished by compression molding of the flowable metal between a punch and die of a tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.