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WO2008137371A3 - Welding system and method with improved waveform - Google Patents

Welding system and method with improved waveform Download PDF

Info

Publication number
WO2008137371A3
WO2008137371A3 PCT/US2008/061705 US2008061705W WO2008137371A3 WO 2008137371 A3 WO2008137371 A3 WO 2008137371A3 US 2008061705 W US2008061705 W US 2008061705W WO 2008137371 A3 WO2008137371 A3 WO 2008137371A3
Authority
WO
WIPO (PCT)
Prior art keywords
welding
welding system
short circuit
current
welding electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2008/061705
Other languages
French (fr)
Other versions
WO2008137371A2 (en
Inventor
Galen Jon White
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US12/108,227 external-priority patent/US20080264923A1/en
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of WO2008137371A2 publication Critical patent/WO2008137371A2/en
Publication of WO2008137371A3 publication Critical patent/WO2008137371A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
    • B23K9/091—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits
    • B23K9/092—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits characterised by the shape of the pulses produced

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)
  • Arc Welding In General (AREA)

Abstract

Provided is a welding system and method for controlling a welding system with an improved waveform. In accordance with one aspect of the present invention, a welding system waveform is calibrated such that the welding transfer regularly occurs during short circuits, comprising applying a voltage and a current to a welding electrode, applying an increased voltage and an increased current to the welding electrode, increasing the current to the welding electrode when a short circuit is detected, and maintaining the increased current applied to the welding electrode until a desired time expires after the short circuit is detected or until the short circuit clears, whichever occurs first.
PCT/US2008/061705 2007-04-30 2008-04-28 Welding system and method with improved waveform Ceased WO2008137371A2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US79682407A 2007-04-30 2007-04-30
US6613807P 2007-04-30 2007-04-30
US11/796,824 2007-04-30
US61/066,138 2007-04-30
US12/108,227 US20080264923A1 (en) 2007-04-30 2008-04-23 Welding system and method with improved waveform
US12/108,265 2008-04-23
US12/108,227 2008-04-23
US12/108,265 US20080264917A1 (en) 2007-04-30 2008-04-23 Metal core welding wire pulsed welding system and method

Publications (2)

Publication Number Publication Date
WO2008137371A2 WO2008137371A2 (en) 2008-11-13
WO2008137371A3 true WO2008137371A3 (en) 2008-12-24

Family

ID=39855255

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/061705 Ceased WO2008137371A2 (en) 2007-04-30 2008-04-28 Welding system and method with improved waveform

Country Status (1)

Country Link
WO (1) WO2008137371A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508146B1 (en) * 2009-08-10 2010-11-15 Fronius Int Gmbh METHOD FOR DISCONNECTING A SHORT CIRCUIT FOR SHORT ARC WELDING AND WELDING DEVICE FOR SHORT ARC WELDING
EP2576119B1 (en) 2010-05-28 2015-08-05 Esab AB Short arc welding system
US10857610B2 (en) 2015-08-18 2020-12-08 Illinois Tool Works Inc. Method and apparatus for pulse welding
US11285559B2 (en) 2015-11-30 2022-03-29 Illinois Tool Works Inc. Welding system and method for shielded welding wires
CN110912418B (en) * 2019-11-25 2021-01-15 中冶京诚工程技术有限公司 Electric arc power supply system and electric arc power supply based on strong excitation trapezoidal wave signal

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1188027A (en) * 1967-06-28 1970-04-15 Inst Elektroswarki Patona A Method of Arc Welding with Alternating Current.
WO1989007036A1 (en) * 1988-02-05 1989-08-10 Commonwealth Scientific And Industrial Research Or Improved cored electrode wires
WO1998050190A1 (en) * 1997-05-05 1998-11-12 Esab Ab Method and apparatus for arc welding with melting electrode
EP1036627A2 (en) * 1999-03-16 2000-09-20 Lincoln Global, Inc. Method and apparatus for electric arc welding
EP1384546A2 (en) * 2002-07-23 2004-01-28 Illinois Tool Works Inc. Method of controlling a power supply for short circuit arc welding
US20050211747A1 (en) * 2004-03-23 2005-09-29 Pei-Chung Wang Metal transfer in arc welding
EP1688203A2 (en) * 2005-02-07 2006-08-09 Lincoln Global, Inc. Modular power source for electric arc welding with three stages: output chopper with first and second polarity and a welder including such chopper; MIG welding methods using such modular power source or such output chopper
EP1710037A1 (en) * 2005-04-05 2006-10-11 Vermaat Technics B.V. Apparatus and method for short-circuit arc welding
EP1779957A2 (en) * 2005-10-31 2007-05-02 Lincoln Global, Inc. Synergistic welding system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1188027A (en) * 1967-06-28 1970-04-15 Inst Elektroswarki Patona A Method of Arc Welding with Alternating Current.
WO1989007036A1 (en) * 1988-02-05 1989-08-10 Commonwealth Scientific And Industrial Research Or Improved cored electrode wires
WO1998050190A1 (en) * 1997-05-05 1998-11-12 Esab Ab Method and apparatus for arc welding with melting electrode
EP1036627A2 (en) * 1999-03-16 2000-09-20 Lincoln Global, Inc. Method and apparatus for electric arc welding
EP1384546A2 (en) * 2002-07-23 2004-01-28 Illinois Tool Works Inc. Method of controlling a power supply for short circuit arc welding
US20050211747A1 (en) * 2004-03-23 2005-09-29 Pei-Chung Wang Metal transfer in arc welding
EP1688203A2 (en) * 2005-02-07 2006-08-09 Lincoln Global, Inc. Modular power source for electric arc welding with three stages: output chopper with first and second polarity and a welder including such chopper; MIG welding methods using such modular power source or such output chopper
EP1710037A1 (en) * 2005-04-05 2006-10-11 Vermaat Technics B.V. Apparatus and method for short-circuit arc welding
EP1779957A2 (en) * 2005-10-31 2007-05-02 Lincoln Global, Inc. Synergistic welding system

Also Published As

Publication number Publication date
WO2008137371A2 (en) 2008-11-13

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