Alimentation et chalumeau pour soudage à l'arc

Lichtbogenschweissversorgung und Brenner

Arc welder and torch for same

Abstract

In an electric arc welder for creating an arc welding process between a consumable electrode advancing through a contact tip and a workpiece, the welder including a power supply to create an arc current and arc voltage and having a first lead connected to the contact tip and a second lead connected to the workpiece, the improvement comprising dividing the contact tip into an upper tip section and a lower tip section with an insulator electrically isolating the sections, a first switch selectively shiftable to a conductive state connecting one of the power supply leads to said upper tip section, a second switch selectively shiftable to a conductive state connecting the one lead to the lower tip section and a switch operating network creating a first switch signal to shift the first switch to its conductive state and/or a second switch signal to shift the second switch to its conductive state to control the effective CTWD of the arc welding process.

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Patent Citations (6)

    Publication numberPublication dateAssigneeTitle
    EP-0333195-A1September 20, 1989Hitachi, Ltd.Verfahren und Vorrichtung zur automatischen Schweissbrennerregelung
    US-3010012-ANovember 21, 1961Air ReductionArc welding
    US-3518401-AJune 30, 1970Air ReductionElectric arc pulsing
    US-4447703-AMay 08, 1984Westinghouse Electric Corp.Method and apparatus for arc welding
    US-4631385-ADecember 23, 1986Dimetrics, Inc.Automated position detectors and welding system utilizing same
    US-5275327-AJanuary 04, 1994Eg&G Idaho, Inc.Integrated optical sensor

NO-Patent Citations (1)

    Title
    FUJIMURA H ET AL: "ESTIMATION OF CONTACT TIP-WORKPIECE DISTANCE IN GAS SHIELDED METAL ARC WELDING" , WELDING INTERNATIONAL, WELDING INSTITUTE. ABINGTON, GB, VOL. 2, NR. 6, PAGE(S) 522-528 XP000128961 ISSN: 0950-7116 * the whole document *

Cited By (0)

    Publication numberPublication dateAssigneeTitle