Apparatus for welding with curtain electrodes and strip electrodes

Patent metadata

Field	Value
Publication number	US-9555493-B2
Application number	US-98315710-A
Country	US
Kind code	B2
Filing date	Dec 31, 2010
Priority date	Jul 9, 2008
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A system and method of welding is provided where a first welding power supply provides a first welding waveform to a strip electrode for welding a work piece and a second welding power supply provides a second welding waveform to at least one curtain electrode for welding the work piece. The at least one curtain electrode is positioned adjacent to a side of said strip electrode during welding.

First claim

What is claimed is:

1. A welding system, comprising:
a strip electrode and a first welding power supply which provides a first welding waveform to the strip electrode for welding a work piece; and
at least one curtain electrode and second welding power supply which provides a second welding waveform to said at least one curtain electrode for welding said work piece;
wherein said at least one curtain electrode is positioned adjacent to a side of said strip electrode during welding.

2. The welding system of claim 1 , wherein a second curtain electrode is positioned adjacent to another side of said strip electrode during welding.

3. The welding system of claim 1 , wherein said at least one curtain electrode is positioned adjacent to said side by a distance such that a weld bead from said at least one curtain electrode is integrated with a weld bead of said strip electrode.

4. The welding system of claim 1 , wherein said at least one curtain electrode has a different composition than said strip electrode.

5. The welding system of claim 1 , wherein said first welding waveform is one of an electro-slag and submerged arc welding waveform and said second welding waveform is different from said first welding waveform.

6. The welding system of claim 1 , wherein the at least one curtain electrode includes at least two curtain electrodes positioned adjacent said side during said welding.

7. The welding system of claim 1 , Wherein said first welding waveform is an electroslag welding waveform and said second welding waveform has an opposite polarity than said first welding waveform.

8. The welding system of claim 1 , wherein said first welding waveform is an AC welding waveform and said second welding waveform is phase shifted to be out of phase with said first welding waveform.

9. The welding system of claim 2 , wherein said at least one curtain electrode has at least one of a different diameter and material composition than said second curtain electrode.

Assignees

• Peters Steven
• Lincoln Global Inc

Inventors

• Peters Steven

Classifications

• A61B10/02

  Instruments for taking cell samples or for biopsy {(A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48)} · CPC title

• B23K25/00

  Slag welding, i.e. using a heated layer or mass of powder, slag or the like in contact with the material to be joined · CPC title

• A61B10/0283

  with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe (A61B10/025, A61B10/0266 take precedence) · CPC title

• B23K9/1043

  characterised by the electric circuit (B23K9/1012 takes precedence) · CPC title

• A61B2010/008

  Interstitial fluid · CPC title