OUTPUT CONTROL METHOD OF CONSUMABLE ELECTRODE AC ARC WELDING POWER SOURCE

Title:

OUTPUT CONTROL METHOD OF CONSUMABLE ELECTRODE AC ARC WELDING POWER SOURCE

Document Type and Number:

Japanese Patent JP2008221269

Kind Code:

A

Abstract:

To improve stability of welding condition by controlling an outside characteristic of a welding power source in consumable electrode AC arc welding.

In the output control method for a power source of consumable electrode AC arc welding in which welding is performed by alternately switching electrode positive polarity EP and electrode negative polarity EN, the inclination Kr of the outside characteristic of the welding power source is controlled in accordance with welding conditions. The inclination Kr of the outside characteristic is set at a first inclination Kr1 for the electrode positive polarity EP, and set at a second inclination Kr2, which is a larger value than the first inclination Kr1, for the electrode negative polarity EN. The first and second outside characteristic inclinations are each set in a manner stabilizing the welding condition in the respective corresponding polarities.

More Like This:

JPS6199577	STABILIZED POWER SOURCE DEVICE
JP7048816	Arc welding method including consumable welding wire

Inventors:

ERA TETSUO
NISHISAKA FUTOSHI
MIZUTORI HIROYASU
IDE AKIHIRO

Application Number:

JP2007061376A

Publication Date:

September 25, 2008

Filing Date:

March 12, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

DAIHEN CORP

International Classes:

B23K9/073; B23K9/10

Domestic Patent References:

JP2005349406A	2005-12-22
JP2002283050A	2002-10-02
JPH0592269A	1993-04-16
JPH11104830A	1999-04-20
JPH035079A	1991-01-10

Previous Patent: KNOCKOUT APPARATUS FOR FORMING PRESS

Next Patent: GEAR FORMING DIE AND EXTRUSION FORMING APPARATUS WITH THE GEAR FORMING DIE