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rotating electrode process

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Published: 30 September 2015
Fig. 21 Schematic of the rotating electrode process. (a) Plasma rotating electrode process. (b) Tungsten-tipped rotating electrode process More
Image
Published: 12 September 2022
Fig. 5 Schematic of plasma rotating-electrode process More
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Published: 01 December 1998
Fig. 13 Scanning electron micrograph of plasma rotating electrode processed René 95 powder particles. Approximately 70×. Source: Ref 5 More
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Published: 30 September 2015
Fig. 3 Examples of atomized powders. (a) Water-atomized copper. (b) Water-atomized iron, apparent density 2.9 g/cm 3 . (c) Air-atomized aluminum. (d) Helium-atomized aluminum. (e) Nitrogen-atomized high-speed steel. (f) Vacuum-atomized IN-100 superalloy. (g) Plasma rotating electrode process More
Image
Published: 30 September 2015
Fig. 8 Flow chart showing the relationship between the powder making process and available process routes. Powder making processes such as gas atomization, centrifugal atomization, and plasma rotating electrode process (PREP) produce near-spherical powder that fills volume efficiently, making More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006084
EISBN: 978-1-62708-175-7
... particle shape particle size distribution prealloyed powders rotating electrode process two-fluid atomization ultrasonic atomization vacuum atomization ATOMIZATION is the dominant method for producing metal and prealloyed powders from aluminum, brass, iron, low-alloy steels, stainless steels...
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006907
EISBN: 978-1-62708-392-8
... powder is less than one-third that of the former. Fig. 4 Schematic of water atomization Centrifugal Atomization Figure 5 shows a schematic of the plasma rotating-electrode process (PREP) ( Ref 11 ). The metal or alloy bar is rotated at high speed, and the tip is melted by a plasma...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003595
EISBN: 978-1-62708-182-5
... laminar flow is maintained. Generally, the rotating disk electrode is superior to static systems for study of the kinetics of heterogeneous reactions. For electrolytes in a diffusion controlled process where a stationary condition exists and the process is dependent on mass transfer of solute...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0005547
EISBN: 978-1-62708-161-0
... million ICHAZ intercritical heat-affected zone log common logarithm (base 10) PQ physical quality ID inside diameter LVDT linear variable differential PREP plasma rotating electrode process IF interstitial-free (steel) IFI Industrial Fasteners Institute transformer psi pounds per square inch IGA inert-gas...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002166
EISBN: 978-1-62708-188-7
... Abstract Electrical discharge grinding (EDG) is much like electrical discharge machining except that the electrode (tool) is a rotating graphite wheel. This article commences with a schematic illustration of a setup for EDG wheels and discusses the control operation of the EDG setup...
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
... for lap seam welding. The primary factors used to determine the selection of electrodes, including alloy type and wheel configuration, are reviewed. The article also describes weld quality and process control procedures. electrode selection lap seam welding lap seam welds mash seam welds process...
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Published: 30 June 2023
atomized. (d) Plasma rotating electrode. (e) Closeup of electrode induction melt inert gas atomized Ti-6Al-4V alloy. (f) Macrophotographs of different powders showing variance in angle of repose and clumping. Source: Carpenter Additive More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001335
EISBN: 978-1-62708-173-3
... procedures emphasize control of parameters such as electrode speed (or current), voltage, welding speed, contact tube-to-base metal distance, as well as current pulse parameters for out-of-position welding. It is therefore easy to overlook the fact that the process is simply a source of heat and mass inputs...
Image
Published: 30 September 2015
Fig. 4 Spherical powder particles. (a) Prealloyed Ti-6Al-4V produced by gas atomization (GA). (b) Plasma rotating electrode powder (PREP) processing More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001083
EISBN: 978-1-62708-162-7
... are commercially available as spherical particles that have high tap density (65%) and good powder flow and mold fill characteristics. Two main production methods are used for making clean PA powder: Gas atomization ( Ref 36 ) Plasma rotating-electrode process (PREP) ( Ref 37 ), a modification...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005621
EISBN: 978-1-62708-174-0
... operation of the process. Welding procedures emphasize control of parameters such as electrode wire-feed speed (or current), arc voltage, welding travel speed, contact tip-to-workpiece distance, as well as welding current pulse parameters (peak and background current, and peak and background time, Fig...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001354
EISBN: 978-1-62708-173-3
... Abstract Gas-metal arc welding (GMAW) is an arc welding process that joins metals together by heating them with an electric arc that is established between a consumable electrode (wire) and a workpiece. This article discusses the advantages and limitations, operating principle, metal transfer...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001365
EISBN: 978-1-62708-173-3
... nuggets) Leak-tight seam welding (nugget overlap) Two rotating circular electrode wheels are often used to apply current, force, and cooling to the work metal. A variety of workpiece/wheel configurations are possible ( Fig. 1 ). When two electrode wheels are used, one or both wheels are driven...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005646
EISBN: 978-1-62708-174-0
... and the face of a llet weld. matic, machine, and automatic arc welding backing weld Backing in the form of a weld. adhesive bonding A materials joining process to transfer current, guide the consumable backstep sequence A longitudinal sequence in in which an adhesive is placed between the electrode...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005202
EISBN: 978-1-62708-187-0
... vacuum arc remelting vacuum induction melted THERE ARE TWO COMMONLY USED remelting processes for metal refinement: electroslag remelting (ESR) and vacuum arc remelting (VAR). In both processes, an electrode is melted as it advances into the melting region of the furnace. As the working face...