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hot-wall pulsed dc technology

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Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005791
EISBN: 978-1-62708-165-8
... the work load. Today (2013), external resistance heaters in hot-walled furnaces are normally used to bring the load to nitriding temperatures (375 to 650 °C, or 700 to 1200 °F) with or without the help of glow discharge. Some general process differences between cold-walled and hot-walled (pulsed-dc...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001370
EISBN: 978-1-62708-173-3
.... It provides information on the applications of microwelding with pulsed solid-state lasers. The article describes the modes of laser welding such as conduction-mode welding and deep-penetration-mode welding, as well as major independent process variables for laser welding, such as laser-beam power, laser-beam...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006460
EISBN: 978-1-62708-190-0
... of hot steel tubing in production, and the measurement and characterization of thin layers in microelectronics by two different approaches. Technological aspects, such as interferometer design, detection lasers, and others also are discussed, as well as digital processing and imaging methods adapted...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005590
EISBN: 978-1-62708-174-0
... common. Advances in the electronics industry have readily been adapted by the welding community, resulting in sophisticated, lightweight power supplies. Transistorized dc power supplies are common. There are newer inverter-based power sources that will deliver dc, pulsed dc in addition to sine-wave ac...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0005663
EISBN: 978-1-62708-173-3
... sociation hcp hexagonal close-packed LME liquid-metal embrittlement NIST National Institute of Standards and HHC hot-hollow cathode LMP Larson-Miller parameter HIC hydrogen-induced cracking In natural logarithm (base e) Technology HIP hot isostatic pressing LNG liquefied natural gas nm nanometer HK Knoop...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005958
EISBN: 978-1-62708-168-9
... furnaces ( Fig. 14 ). Inside a double-walled pressure vessel construction, a well-isolated hot zone (heating chamber) is fixed. Between the two walls, water circulates to achieve efficient cooling of the vessel. The well-isolated heating chamber (cylindrical or rectangular) carries the load and the heating...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005717
EISBN: 978-1-62708-171-9
...-frequency generators are sources of alternating magnetic fields. Some power-control schemes use high-frequency inverter-type power supplies, pulsed dc power, and modulated dc power. In conventional silicon-controlled rectifier-fired power supplies there is generally alternating current (ac) ripple (180, 360...
Book Chapter

By S.L. Rohde
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001288
EISBN: 978-1-62708-170-2
... of process control. In the third section, the basic principles and relative advantages and disadvantages of the most common sputtering techniques are examined, specifically direct-current (dc) diode, radio-frequency (rf) diode, triode, magnetron sputtering, and a relatively new technique known as “unbalanced...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005127
EISBN: 978-1-62708-186-3
..., such as explosive forming, electrohydraulic forming, and electromagnetic forming. It provides examples that illustrate how these methods can be practically applied. The article concludes with information on the status and development potential for the technology. electrohydraulic forming electromagnetic...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.9781627081733
EISBN: 978-1-62708-173-3
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006515
EISBN: 978-1-62708-207-5
... Gas tungsten arc robotic welding head with cold wire-feed device. Courtesy of Lincoln Electric Company Fig. 13 Schematic of gas tungsten arc welding (GTAW) with hot wire feed. ac, alternating current; dc, direct current As with any open-arc welding process, a skilled welder can easily...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001093
EISBN: 978-1-62708-162-7
... of material, also magnetized to saturation, may have the summation of its magnetic moments point in another direction. Where two such volumes meet (with differing alignments), a domain boundary wall must exist. The total magnetization of a sample of material is the net vector summation of all the individual...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005707
EISBN: 978-1-62708-171-9
... (carburizing, nitriding, and boriding) surface modifications, electrochemical treatments (electroplating, and anodizing), chemical treatments (electroless plating, phosphating, and hot dip coating), hardfacing, and thermal spray processes. It provides information on chemical and physical vapor deposition...
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
.... Emphasis is placed on ICP-MS applications in the semiconductor, photovoltaic, materials science, and other electronics and high-technology areas. inductively coupled plasma mass spectrometry mass analyzer Overview Introduction Inductively coupled plasma mass spectrometry (ICP-MS...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.9781627081849
EISBN: 978-1-62708-184-9
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004225
EISBN: 978-1-62708-184-9
... oxygen demand dc diffusion coef cient A angstrom BS EN British Standard DFM crack growth rate per cycle AA Aluminum Association BSW British Standard Euronorm DMF crack growth rate per unit time ABS acrylonitrile-butadiene-styrene BWR basic saturated water DNB direct current ac alternating current c...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006457
EISBN: 978-1-62708-190-0
... Typical configuration of bonded honeycomb assembly. (a) Trailing edge. (b) Leading edge Water in Core Cells Upon completion of the bonded assembly, some manufacturers perform a hot-water leak test to determine if the assembly is leakproof. If the assembly emits bubbles during the leak test...
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
... of dc power supplies produces a very fast rising current pulse. In some applications involving dissimilar metals, the polarity of the power should be checked to ensure that appropriate heat balance is maintained in the joint. The size and resistance of the secondary loop also influences current rise...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
... may include, but is not limited to: Date of installation Piping material grade Diameter and wall thickness Seam weld type (if any) Coating type Cathodic protection information Previous hydrotest results (including dates, pressures, and times) In-line inspection results...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009011
EISBN: 978-1-62708-185-6
.... Even small amounts of buckling can noticeably affect the magnitude of the plastic properties deduced from the hot torsion test ( Ref 34 ). Typical dimensions for thin-wall specimens are 12.5 mm (0.50 in.) outer diameter, 11 mm (0.44 in.) inner diameter, and a gage length of 2.5 mm (0.10...