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copper electrode design

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005205
EISBN: 978-1-62708-187-0
... Abstract Plasma melting is a material-processing technique in which the heat of thermal plasma is used to melt a material. This article discusses two typical design principles of plasma torches in the transferred mode: the tungsten tip design and the hollow copper electrode design. It describes...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001389
EISBN: 978-1-62708-173-3
... that contribute to high quality in an RB joint. The article discusses the classification of RB such as manual RB or automatic RB. It describes the selection of metal electrodes and filler metals for RB. The filler metals include silver alloys, aluminum-silicon alloys, and copper-phosphorus alloys. aluminum...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001438
EISBN: 978-1-62708-173-3
... and qualifications. (a) Single percentages are maximums unless otherwise stated. Optional elements and impurities have been omitted. Filler metals for GMAW of copper and copper alloys Table 3 Filler metals for GMAW of copper and copper alloys Electrode designation (a) Common name Base-metal...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001397
EISBN: 978-1-62708-173-3
... or a combination of the following forms ( Fig. 1 ): Pencil Twin-pencil Roller Clamp Plier-type The electrodes are connected to the transformer by oversized current-carrying conductors. The heart of the system is a heavy-duty, variable, step-down transformer designed to develop an output...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001443
EISBN: 978-1-62708-173-3
... at the welding speed. The circular or flat cross-section of copper wire electrode provides a continuously renewed surface, but it is not consumed in the welding operation. The tin build-up which would occur on a copper wheel electrode is thus avoided. The process requires specially designed welding systems...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001435
EISBN: 978-1-62708-173-3
... techniques, such as groove face grooving, studding, joint design modifications, and peening, for improving the strength of a weld or its fitness for service. The article discusses the need for postweld heat treatment that depends on the condition of the casting, possible distortion during subsequent...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003206
EISBN: 978-1-62708-199-3
...; Cu = 0.08% maximum. “N” electrodes shall not be coated with copper or any material containing copper. The “EF5” and “EW” electrodes shall not be designated as “N” electrodes. (d) The copper limit includes any copper coating that may be applied to the electrode. (e) The EL12 and EM12K...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001353
EISBN: 978-1-62708-173-3
.... In addition, letters or numbers can be used to indicate composition modifications or position usability. The specification AWS A5.4 identifies and classifies covered corrosion-resisting chromium and chromium-nickel steel welding electrodes. Nickel and Copper Alloys The designations for nonferrous...
Image
Published: 01 December 2008
Fig. 4 Design concepts for plasma arc torches in the transferred mode. (a) Torch with tungsten tip and concentric gas flow. (b) Torch with hollow copper electrode and vortex generator More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005626
EISBN: 978-1-62708-174-0
... while those of high conductivity may be very difficult. Similar to projection welding aluminum, the rapid softening of projections made in copper alloys requires very short weld times, high currents, low electrode force, and rapid electrode followup head designs incorporated into the welding equipment...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005625
EISBN: 978-1-62708-174-0
..., their thicknesses, the overlap distance, the electrode width, and the access available for the electrodes. The electrodes are usually copper alloy disks or wheels, which roll along the intended seam, although a variation with conventional cylindrical spot welding electrodes has also been used (stitch welding...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005608
EISBN: 978-1-62708-174-0
... of the electrode wheel ( Fig. 4 ). For some applications, the electrode wheels idle while the workpiece is driven. Other electrode systems for seam welding may use one wheel and one flat bar-type electrode ( Fig. 5 ), or a wire-feed system in which a copper wire is fed into a groove on the wheel. Fig. 4...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001437
EISBN: 978-1-62708-173-3
.... Electrode extension (stick out) should be short, and the amount should be based on joint design. For example, a maximum extension of 4.8 mm ( 3 16 in.) can be used for butt welds in thin metal, but a 9.5 to 13 mm ( 3 8 to 1 2 in.) extension is required for some fillet welds...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006301
EISBN: 978-1-62708-179-5
... in AWS specification A5.15. They are grouped as ( Ref 7 ): RCI: intended for oxyethylene welding ECI: covered electrode with cast iron core Copper group: intended for braze welding and surfacing ESt: covered electrode with steel core. The deposit is not machinable. ENi: covered...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005582
EISBN: 978-1-62708-174-0
... process where the coalescence of metals is achieved via the heat transferred by an arc that is created between a tungsten electrode and a workpiece. The arc is constricted by a copper alloy nozzle orifice to form a highly collimated arc column ( Fig. 1 ). The plasma is formed through the ionization...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003579
EISBN: 978-1-62708-182-5
... is not measurable, but it is possible to measure the potential difference between this system and another metal-ion system. If a zinc electrode placed in a solution of zinc ions is linked through an electric circuit including a voltmeter to a copper electrode placed in a solution of copper ions ( Fig. 1...
Book Chapter