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plasma arc machining

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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
... Abstract Arc welding methods can be classified into shielded metal arc welding, flux-cored arc welding, submerged arc welding, gas metal arc welding, gas tungsten arc welding, plasma arc welding, plasma-metal inert gas (MIG) welding, and electroslag and electrogas welding. This article provides...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001291
EISBN: 978-1-62708-170-2
...). These macroparticles result from the extreme localized heating of the cathode, which is due to the high current densities that are found in cold cathode arcs (10 4 to 10 8 A/cm 2 ). Unless the macroparticles can be removed from the plasma stream, they become lodged in the coating and are usually...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006641
EISBN: 978-1-62708-213-6
... Abstract This article discusses the basic principles of inductively coupled plasma mass spectrometry (ICP-MS), covering different instruments used for performing ICP-MS analysis. The instruments covered include the sample-introduction system, ICP ion source, mass analyzer, and ion detector...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001282
EISBN: 978-1-62708-170-2
... Powder Grit blasting or as-machined 95–150 225–300 730–790 2400–2600 Super D-Gun Metallic, cermet, and ceramic Powder Grit blasting or as-machined 95–150 225–300 850–1000 2800–3300 Transferred arc plasma Metallic fusible coatings Powder Light grit blasting or chemical cleaning Fuses...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003179
EISBN: 978-1-62708-199-3
... rates and provide superior cut quality. Machine cutting is important for profile cutting, the cutting of regular and irregular shapes from flat stock. The basic plasma arc cutting torch is similar in design to that of a plasma arc welding torch. For welding, a plasma gas jet of low velocity is...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003817
EISBN: 978-1-62708-183-2
... environmental cracking resistance of the cobalt alloys. Three welding processes that are used for hardfacing with the high-carbon Co-Cr-W alloys, namely, oxyacetylene, gas tungsten arc, and plasma-transferred arc are also discussed. The article examines the effects of various modes of high-temperature corrosion...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006012
EISBN: 978-1-62708-172-6
... carbon nanotubes, silica, metals/metal oxides, ceramics, clays, buckyballs, graphene, polymers, titanium dioxide, and waxes. These can be produced by a variety of methods, including chemical vapor deposition, plasma arcing, electrodeposition, sol-gel synthesis, and ball milling. The application of...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001280
EISBN: 978-1-62708-170-2
... flame spraying, plasma-arc flame spraying, detonation gun spraying, pack cementation, fluidized-bed deposition, vapor streaming, troweling, and electrophoresis. The article also includes information on the evaluation of the quality of ceramic coatings...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001320
EISBN: 978-1-62708-170-2
... coatings crater wear cutting tools depth-of-cut notching diamond coatings flank wear high-speed tool steels ion implantation machining manufacturing productivity physical vapor deposited coatings plasma-assisted chemical vapour deposited coatings polycrystalline cubic boron nitrides...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005197
EISBN: 978-1-62708-187-0
... materials. The article provides a discussion on control tests for cupola, including the chill test and mechanical test. It concludes with information on specialized cupolas such as cokeless cupola and plasma-fired cupola. casting machines cupola equipment high-iron-tonnage operation preheated air...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001283
EISBN: 978-1-62708-170-2
... decomposition of a hydrocarbon, such as methane: CH 4 → C ( diamond ) + 2 H 2 The reaction can be activated by microwave plasma, thermal means (hot filament), or plasma arc. Diamond-like carbon (DLC) represents a new form of carbon coating that is neither diamond nor graphite. A...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005656
EISBN: 978-1-62708-198-6
... porous metal/coating having an open-cell structure, high porosity, and a microsctructure resembling that of cancellous bone. The traditional porous metal/coating includes fiber-metal mesh, cobalt-chromium (CoCr) beads, cancellous-structured titanium, and plasma spray. The article discusses other porous...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004001
EISBN: 978-1-62708-185-6
...) and hot extruded using a reduction ratio of ∼6 to 1 ( Ref 35 , 36 ). Alternative approaches (to make small quantities of material) based on vacuum arc or plasma arc melting have met with limited success because of challenges associated with alloy segregation and concomitant poor hot workability ( Ref...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005299
EISBN: 978-1-62708-187-0
..., in addition to requiring excessive energy expenditure, can contribute to the problem of dirty steel. The preferred solution is to supply heat to the ladle, maintaining the steel at minimal superheat during refining. This can be accomplished by the transferred arc plasma torch, with the added benefit...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005199
EISBN: 978-1-62708-187-0
... section “Ladle Furnace and Vacuum Arc Degassing in this article). Depending on metal, ladle size, and expected heating rate, electrical power of up to several megawatts may be applied. Heating can be done by graphite electrodes, plasma torches, or induction coils. However, graphite electrodes cannot be...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003173
EISBN: 978-1-62708-199-3
... is little or no reaction with the wall. Other power sources may be used in vacuum melting, such as plasmas or electron beams. However, these melting methods are not in widespread use in the foundry industry. In argon-oxygen-decarburization (AOD), used for stainless and alloy steel refining...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001233
EISBN: 978-1-62708-170-2
... least resistance. This causes a breakdown of the dielectric and initiates the flow of current. In the second stage, electrons and ions migrate toward the anode and cathode at high current density, forming a column of plasma and initiating the melting of the workpiece. When the application of voltage is...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003055
EISBN: 978-1-62708-200-6
... Abstract Ceramics usually require some form of machining prior to use to meet dimensional and surface quality standards. This article focuses on abrasive machining, particularly grinding, and addresses common methods and critical process factors. It covers cylindrical, centerless, and disk...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003114
EISBN: 978-1-62708-199-3
... steels, and precision-cast tool steels. It describes the effects of surface treatments on the basic properties of tool steels, including hardness, resistance to wear, deformation, and toughness. The article provides information on fabrication characteristics of tool steels, including machinability...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003116
EISBN: 978-1-62708-199-3
.... Other very commonly used processes for stainless steels are gas-tungsten arc welding (GTAW), gas-metal arc welding (GMAW), submerged arc welding (SAW), flux-cored arc welding (FCAW), and several forms of resistance welding. The plasma arc welding (PAW), laser-beam welding (LBW), and electron-beam...