# US 9,434,018 B2 · Automatic burnback control in an arc welding system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,434,018 B2 - Document ID: US9434018B2 - Status: Granted - Kind: B2 - Application number: 12/428,675 - Filed: 2009-04-23 - Published: 2010-10-28 - Granted: 2016-09-06 - Earliest claimed: 2009-04-23 - Assignees: Lincoln Global, Inc. - Applicants: Joseph A. Daniel; Elliott R. Ash - Inventors: Joseph A. Daniel; Elliott R. Ash - Web page: https://patentgrep.com/patent/US9434018B2 ## CPC - B23K 9/124: {Circuits or methods for feeding welding wire} - B23K 9/126: {Controlling the spatial relationship between the work and the gas torch (between wire tip and piece B23K9/073)} - B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM ## Abstract An arc welding system and method where burnback time (BBT) is correlated to wire feed speed (WFS). Means for feeding a wire electrode toward a workpiece and means for selecting a wire feed speed (WFS) are provided. Also, means for automatically adjusting a burnback time (BBT) of the wire electrode in response to the selected wire feed speed (WFS) is provided. ## Claims ### Claim 1 A method to automatically adjust a burnback time in an arc welding system, said method comprising: selecting a first wire feed speed of a wire feeder of said arc welding system; and automatically adjusting an initial burnback time of said arc welding system to a first adjusted burnback time in response to said selected first wire feed speed. ### Claim 2 (depends on 1) The method of claim 1 wherein said first adjusted burnback time is longer than said initial burnback time. ### Claim 3 (depends on 1) The method of claim 1 wherein said first adjusted burnback time is shorter than said initial burnback time. ### Claim 4 (depends on 1) The method of claim 1 further comprising further manually adjusting said burnback time within a first predefined range about said first adjusted burnback time. ### Claim 5 (depends on 1) The method of claim 1 further comprising communicating said first adjusted burnback time to a power source of said arc welding system or to a wire feeder of said arc welding system. ### Claim 6 (depends on 1) The method of claim 1 further comprising: selecting a second wire feed speed of said wire feeder of said arc welding system; and automatically adjusting said first adjusted burnback time to a second adjusted burnback time in response to said selected second wire feed speed. ### Claim 7 (depends on 6) The method of claim 6 wherein said second adjusted burnback time is longer than said first adjusted burnback time. ### Claim 8 (depends on 6) The method of claim 6 wherein said second adjusted burnback time is shorter than said first adjusted burnback time. ### Claim 9 (depends on 6) The method of claim 6 further comprising further manually adjusting said burnback time within a second predefined range about said second adjusted burnback time. ### Claim 10 (depends on 6) The method of claim 6 further comprising communicating said second adjusted burnback time to a power source of said arc welding system or to a wire feeder of said arc welding system. ### Claim 11 An arc welding apparatus, said apparatus comprising: means for feeding a wire electrode toward a workpiece; means for selecting a wire feed speed of said means for feeding a wire electrode; and means for automatically adjusting a burnback time of said wire electrode in response to said selected wire feed speed. ### Claim 12 (depends on 11) The apparatus of claim 11 further comprising means for further manually adjusting said burnback time within a predefined range about said automatically adjusted burnback time. ### Claim 13 (depends on 11) The apparatus of claim 11 further comprising means for communicating said adjusted burnback time to an arc welding power source or to said means for feeding a wire electrode. ### Claim 14 (depends on 12) The apparatus of claim 12 further comprising means for communicating said further adjusted burnback time to an arc welding power source or to said means for feeding a wire electrode. ### Claim 15 A method of establishing a burnback time in an arc welding system, said method comprising: correlating each of a plurality of burnback times to each of a plurality of wire feed speeds of said arc welding system; electronically storing said correlated burnback times and wire feed speeds within said arc welding system; and providing means for automatically adjusting a burnback time of said arc welding system to a correlated burnback time in response to a selected wire feed speed within said arc welding system based on said electronically stored and correlated burnback times and wire feed speeds. ### Claim 16 (depends on 15) The method of claim 15 wherein said correlated burn back times are electronically stored in an addressable electronic look-up-table (LUT) capable of being addressed by data representative of wire feed speed. ### Claim 17 (depends on 16) The method of claim 16 where said addressable electronic LUT includes a programmable read only memory (PROM) device. ### Claim 18 (depends on 16) The method of claim 16 where said addressable electronic LUT includes a field programmable gate array (FPGA) device. ### Claim 19 (depends on 16) The method of claim 16 where said addressable electronic LUT includes a random access memory (RAM) device. ### Claim 20 (depends on 15) The method of claim 15 wherein said plurality of burnback times are correlated to said plurality of wire feed speeds based on at least one wire feeder driver characteristic of said arc welding system.