Method to control an arc welding system to reduce spatter
US9415457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2011 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Oct 2, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/1043
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electric arc welder and a method for performing a pulse welding process producing reduced spatter. The welder produces a current between an advancing electrode and a workpiece. The welder includes a short-detecting capability for detecting a short condition upon occurrence of a short circuit between the advancing electrode and the workpiece. The welder may also include a switching module in the welding circuit path of the welder having an electrical switch and a resistive path. Times of occurrence of short intervals can be tracked and a blanking signal can be generated based on the tracked short intervals to anticipate a next short interval in a next pulse period of the pulsed welding process. The blanking signal can be used to reduce a welding current in the welding circuit path by introducing additional resistance into the welding circuit path via the switching module, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.