Process for welding a stack of thin metal sheets
US5532453A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1995 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Apr 7, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There has been provided a process for spot welding a stack of thin metal strips or layers with a non-depositing welder gun. The process involves forming a stack of thin metal layers, compressing the layers between the jaws of a press, one of which has at least one receptacle for and adapted to receive the non-depositing welder gun tip, placing the gun in the receptacle, optionally flooding with an inert gas, and applying electrical power to the gun for a period of from 1 to 10 seconds. The process is especially useful in the formation of a stack of thin metal strips for making a multicellular honeycomb converter body for removing pollutants from the exhaust of an internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.