US2988630A - Method of inert-gas metal arc-welding - Google Patents
Method of inert-gas metal arc-welding Download PDFInfo
- Publication number
- US2988630A US2988630A US758558A US75855858A US2988630A US 2988630 A US2988630 A US 2988630A US 758558 A US758558 A US 758558A US 75855858 A US75855858 A US 75855858A US 2988630 A US2988630 A US 2988630A
- Authority
- US
- United States
- Prior art keywords
- inert
- wire
- metal
- copper
- gas metal
- 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.)
- Expired - Lifetime
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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/934—Electrical process
- Y10S428/935—Electroplating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
- Y10S75/95—Consolidated metal powder compositions of >95% theoretical density, e.g. wrought
- Y10S75/951—Oxide containing, e.g. dispersion strengthened
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/1291—Next to Co-, Cu-, or Ni-base component
Definitions
- United States Patent This invention is concerned with methods of inertgas metal-arc welding in which an electrode wire of an aluminum-bronze alloy is used.
- aluminumbronze alloy as used in this specification refers to all copper-rich bina-r-y copper-aluminum alloys and includes Within its scope complex aluminum-bronze alloys which contain, in addition to copper and aluminum, such ele-' ments as manganese, iron or nickel. Such methods using these electrode wires may be used for welding aluminum-bronze alloys or brass or may be used for the purpose of overlaying on steel and other metals.
- inert-gas metal-arc welding it is usual to introduce an electrical current into the electrode wire through a contactor tube which frictionally bears against the electrode wire. It has been found in practice, when using aluminum-bronze alloy electrode wire, that the oxide film on the surface of the wire leads to inferior working, due, mainly, to variations of contact resistance and to arcing between the contactor tube and the surface of the electrode wire.
- the copper is deposited electrolytically on the surface of the wire after cleaning and etching thereof, and has a minimum thickness of about 0.0002".
- the wire was degreased in a mineral solvent and etched in an acid pickle containing sulphuric, phosphoric and nitric acids. The wire was then electroplated with copper in the usual ice manner until the copper deposited on the wire, which is an adherent surface coating, had a thickness of substantially 0.0002.
- An electrode wire in accordance with the invention has a further advantage in that it can be stored over lengthy periods without the formation of such a deleterious oxide coating as would give rise to the operating difliculties mentioned.
- An electrode wire for use with a contactor tube in inert-gas metal arc welding; said wire comprising a base of aluminum bronze alloy metal, and a thin adherent coating of copper metal upon the exterior of said base.
- An electrode wire for use with a contactor tube in inert-gas metal arc welding; said wire comprising a base of aluminum bronze alloy metal, and an adherent electrolytically deposited coating of copper metal upon the exterior of said base.
- An electrode wire for use with a contactor tube in inert-gas metal arc welding comprising a base of aluminum bronze alloy metal, and an adherent electrolytically deposited coating of copper metal having a minimum thickness of 0.0002 inch upon the exterior of said base.
- An electrode wire for use with a contactor tube in inert-gas metal arc welding comprising a base of aluminum bronze alloy metal, and an adherent coating of copper metal substantially 0.0002 inch thick upon the exterior of said base.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Description
United States Patent This invention is concerned with methods of inertgas metal-arc welding in which an electrode wire of an aluminum-bronze alloy is used. The term aluminumbronze alloy as used in this specification refers to all copper-rich bina-r-y copper-aluminum alloys and includes Within its scope complex aluminum-bronze alloys which contain, in addition to copper and aluminum, such ele-' ments as manganese, iron or nickel. Such methods using these electrode wires may be used for welding aluminum-bronze alloys or brass or may be used for the purpose of overlaying on steel and other metals.
In inert-gas metal-arc welding it is usual to introduce an electrical current into the electrode wire through a contactor tube which frictionally bears against the electrode wire. It has been found in practice, when using aluminum-bronze alloy electrode wire, that the oxide film on the surface of the wire leads to inferior working, due, mainly, to variations of contact resistance and to arcing between the contactor tube and the surface of the electrode wire.
According to this invention we provide a method of inert-gas metal-arc welding in which an electrode wire of an aluminium-bronze alloy is used, the surface of the wire having, adhering thereto, a coating of copper.
Preferably the copper is deposited electrolytically on the surface of the wire after cleaning and etching thereof, and has a minimum thickness of about 0.0002".
In one embodiment of the invention, which is given by way of an example, an aluminium-bronze electrode wire containing:
And unavoidable impurities,
was degreased in a mineral solvent and etched in an acid pickle containing sulphuric, phosphoric and nitric acids. The wire was then electroplated with copper in the usual ice manner until the copper deposited on the wire, which is an adherent surface coating, had a thickness of substantially 0.0002.
We have found that when an electrode wire in accordance with this embodiment of the invention is used in an inertgas metal-arc welding operation, there is an improved transference of the current from the contactor tube to the copper-coated electrode wire, and little or no arcing occurs, with a consequent improvement in operating characteristic, particularly a decrease in wire feed rate variation.
An electrode wire in accordance with the invention has a further advantage in that it can be stored over lengthy periods without the formation of such a deleterious oxide coating as would give rise to the operating difliculties mentioned.
We claim:
1. An electrode wire for use with a contactor tube in inert-gas metal arc welding; said wire comprising a base of aluminum bronze alloy metal, and a thin adherent coating of copper metal upon the exterior of said base.
2. An electrode wire for use with a contactor tube in inert-gas metal arc welding; said wire comprising a base of aluminum bronze alloy metal, and an adherent electrolytically deposited coating of copper metal upon the exterior of said base.
3. An electrode wire for use with a contactor tube in inert-gas metal arc welding; said wire comprising a base of aluminum bronze alloy metal, and an adherent electrolytically deposited coating of copper metal having a minimum thickness of 0.0002 inch upon the exterior of said base.
4. An electrode wire for use with a contactor tube in inert-gas metal arc welding; said wire comprising a base of aluminum bronze alloy metal, and an adherent coating of copper metal substantially 0.0002 inch thick upon the exterior of said base.
References Cited in the file of this patent UNITED STATES PATENTS 1,600,856 Stoody Sept. 21, 1926 1,794,983 Ritter Mar. 3, 1931 2,238,392 Matush Apr. 15, 1941 2,320,676 Swift June 1, 1943 2,797,300 Hawthorne June 25, 1957 2,827,550 Unrath Mar. 18, 1958 FOREIGN PATENTS 2,733 Great Britain Oct. 21, 1865
Claims (1)
1. AN ELECTRODE WIRE FOR USE WITH A CONTACTOR TUBE IN INERT-GAS METAL ARC WELDING, SAID WIRE COMPRISING A BASE OF ALUMINUM BRONZE ALLOY METAL, AND A THIN ADHERENT COATING OF COPPER METAL UPON THE EXTERIOR OF SAID BASE.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2988630X | 1957-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2988630A true US2988630A (en) | 1961-06-13 |
Family
ID=10919242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US758558A Expired - Lifetime US2988630A (en) | 1957-09-06 | 1958-09-02 | Method of inert-gas metal arc-welding |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2988630A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3360349A (en) * | 1965-04-01 | 1967-12-26 | Sperry Rand Corp | Copper layer bonded to a non-conductive layer by means of a copper alloy |
| US5312696A (en) * | 1991-09-16 | 1994-05-17 | United Technologies Corporation | Method for reducing fretting wear between contacting surfaces |
| US6089828A (en) * | 1998-02-26 | 2000-07-18 | United Technologies Corporation | Coated article and method for inhibiting frictional wear between mating titanium alloy substrates in a gas turbine engine |
| WO2009082238A3 (en) * | 2007-12-21 | 2010-02-18 | Efd Induction A.S. | Electric welding of aluminium or aluminium alloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1600856A (en) * | 1926-08-19 | 1926-09-21 | Stoody Co | Method of and apparatus for electric welding |
| US1794983A (en) * | 1928-06-29 | 1931-03-03 | Westinghouse Electric & Mfg Co | Welding electrode |
| US2238392A (en) * | 1939-12-04 | 1941-04-15 | Ampco Metal Inc | Bronze welding electrode |
| US2320676A (en) * | 1942-07-24 | 1943-06-01 | Ampco Metal Inc | Arc welding electrode |
| US2797300A (en) * | 1955-03-03 | 1957-06-25 | Revere Copper & Brass Inc | Welding |
| US2827550A (en) * | 1955-08-15 | 1958-03-18 | Smith Corp A O | Gas shielded nozzle for arc welding head |
-
1958
- 1958-09-02 US US758558A patent/US2988630A/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1600856A (en) * | 1926-08-19 | 1926-09-21 | Stoody Co | Method of and apparatus for electric welding |
| US1794983A (en) * | 1928-06-29 | 1931-03-03 | Westinghouse Electric & Mfg Co | Welding electrode |
| US2238392A (en) * | 1939-12-04 | 1941-04-15 | Ampco Metal Inc | Bronze welding electrode |
| US2320676A (en) * | 1942-07-24 | 1943-06-01 | Ampco Metal Inc | Arc welding electrode |
| US2797300A (en) * | 1955-03-03 | 1957-06-25 | Revere Copper & Brass Inc | Welding |
| US2827550A (en) * | 1955-08-15 | 1958-03-18 | Smith Corp A O | Gas shielded nozzle for arc welding head |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3360349A (en) * | 1965-04-01 | 1967-12-26 | Sperry Rand Corp | Copper layer bonded to a non-conductive layer by means of a copper alloy |
| US5312696A (en) * | 1991-09-16 | 1994-05-17 | United Technologies Corporation | Method for reducing fretting wear between contacting surfaces |
| US6089828A (en) * | 1998-02-26 | 2000-07-18 | United Technologies Corporation | Coated article and method for inhibiting frictional wear between mating titanium alloy substrates in a gas turbine engine |
| WO2009082238A3 (en) * | 2007-12-21 | 2010-02-18 | Efd Induction A.S. | Electric welding of aluminium or aluminium alloy |
| US20110168677A1 (en) * | 2007-12-21 | 2011-07-14 | Efd Induction A.S. | Electric welding of aluminium or aluminium alloy |
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