Welding method
US3944781A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 1974 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | May 6, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/23
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A welding method including the steps of feeding a consumable electrode of at least 1/8 -inch diameter at a constant speed toward a parent metal to be welded, while maintaining, with electrical power at an amperage-voltage characteristic having a slope of 0 to 2 amperes/volt, a direct current arc between the consumable electrode and parent metal, and while maintaining a shielding gas flow at the arc and on molten metal, wherein the electrical power is connected between the consumable electrode and the parent metal in reverse polarity, wherein the speed of the consumable electrode toward the parent metal to be welded is controlled within plus or minus 1/2% of the desired speed, and wherein the power source providing the electrical power has a dynamic regulated output current of plus or minus 5%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.