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high-frequency resistance welding

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... by the flow of high-frequency current at the faying surfaces, with upsetting forces perpendicular to the interface. Although similar in many respects, two separate high-frequency welding processes can be identified: high-frequency resistance welding and high-frequency induction welding, In high-frequency...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220315
EISBN: 978-1-62708-341-6
... Welding The use of high-frequency induction and resistance heating for tube welding also appears very attractive from a cost viewpoint. Not only is the cost per unit of product considerably less with these techniques than with submerged-arc welding (SAW) and fluxed-cored arc welding (FCAW...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
... 0.041 0.020 (a) 1 in. = 25.4 mm. Fig. 6.1 Relationship between diameter of round steel bars and minimum generator frequency for efficient austenitizing using induction heating. From F. W. Curtis, High Frequency Induction Heating , McGraw-Hill, New York. 1950 ( Ref 3 ) When...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220001
EISBN: 978-1-62708-341-6
...., aluminum and copper alloys). Advantages specific to induction melting as compared with other melting processes include a natural stirring action (giving a more uniform melt) and long crucible life. Welding, Brazing, and Soldering High-frequency induction welding offers substantial energy savings...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310201
EISBN: 978-1-62708-286-0
... stainless steels provides very good hot cracking resistance. The rapid cooling of welds produces welds and HAZ with more ferrite than the parent metal by quenching in the high-temperature ferrite. Duplex alloys are more sensitive to problems in the HAZ because their generally high chromium and molybdenum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720345
EISBN: 978-1-62708-305-8
.../min (150 to 300 sfm). Weld Twist When using probe coils in eddy current inspection, the twist in the weld sometimes causes a special problem. When the weld twists out of the zone of high sensitivity, the effectiveness of flaw detection is markedly reduced. The problem cannot be solved...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200369
EISBN: 978-1-62708-354-6
...Abstract Abstract This chapter covers the basics of weldability of cast steels such as carbon and low alloy steels, corrosion-resistant high alloy steels, nickel-base alloys, heat-resistant high alloy steels, and wear-resistant high austenitic manganese steels. It provides an overview of weld...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240395
EISBN: 978-1-62708-251-8
... steel containing 0.1 wt% C will have a tough core, its surface hardness will be low after hardening. On the other hand, a high-carbon steel containing 0.8 wt% C will have a high surface hardness after hardening, but the core will not be tough and shock resistant. There are two approaches to this problem...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930085
EISBN: 978-1-62708-359-1
...-particle testing of a weld with an electromagnet Prod magnetization, in which electrodes carrying a high-amperage, low-voltage current are pressed onto the test surface to induce a distorted, circular magnetic field, provides the most controlled method of magnetization. Although the electrodes can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820203
EISBN: 978-1-62708-339-3
... of using sensitized coupons is that, if corrosion occurs, they indicate a potential problem. The user is thus obliged to consider how the equipment will be welded and heat treated and to determine whether high-temperature excursions will occur during operation. Stress-Corrosion Coupons Typical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220185
EISBN: 978-1-62708-341-6
...; the resulting pattern is shown schematically in Fig. 8.2 . This effect is more pronounced in high-frequency induction heating. At the point where the leads and coil join, the magnetic field is weaker; therefore, the magnetic center of the inductor (along the axial direction) is not necessarily the geometric...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170596
EISBN: 978-1-62708-297-6
... the electrical resistance between mating members. The melting point of the material would be high enough to limit arc erosion, metal transfer, and welding or sticking, but it would also be low enough to increase resistance to reignition in switching. (When the melting point is high, contacts continue to heat gas...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
.... The depth of current penetration depends on workpiece permeability, resistivity, and the alternating current frequency. Because the first two factors vary comparatively little, the greatest variable is frequency. Depth of current penetration decreases as frequency increases. High-frequency current generally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820177
EISBN: 978-1-62708-339-3
... or weld overlaid steel plates used in hydroprocessing equipment ( Fig. 4 ). This form of attack usually results in the formation of blisters at or near the bond/fusion line between the steel and stainless alloys. Hydrogen-induced disbonding occurs with increasing frequency at high hydrogen pressures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
... Resin Forms available Drying method Favorable characteristics Unfavorable characteristics Cost Uses Acrylic Solvent, waterborne, powder Air dry, bake Water white, outdoor durability, chemical, heat resistance Poor-fair adhesion, tendency to be brittle Moderate, high Automotive topcoats...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290023
EISBN: 978-1-62708-306-5
... contamination, its use is generally limited to special applications, such as the joining of stainless steels, and to plasma arc cutting and gouging. Nitrogen is generally considered to be inert except at high temperatures. At arc welding temperatures, it will react with some metals (e.g., aluminum...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290165
EISBN: 978-1-62708-306-5
... be soldered or brazed together. Intricate assemblies can be produced with low distortion, high fatigue resistance, and good resistance to thermal shock. Joints tend to be strong if well filled, unless embrittling phases are produced by reaction between the filler metal and the components. Soldered...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870099
EISBN: 978-1-62708-299-0
.... These microstructures represent degrees of susceptibility to SCC ranging from high susceptibility to high resistance, depending on heat treatment. The treatments that provide high resistance to cracking are those that produce microstructures either free of precipitate along grain boundaries ( Fig. 3a...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550033
EISBN: 978-1-62708-307-2
... Commercially pure aluminum highly resistant to chemical attack and weathering. Low cost, ductile for deep drawing, and easy to weld. Used for high-purity applications such as chemical processing equipment. Also for nameplates, fan blades, flue lining, sheet metal work, spun holloware, and fin stock 1350...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610501
EISBN: 978-1-62708-303-4
...) Cadmium Aluminum alloys 2117, 2017, 2024 (in this order) Low-carbon steel Wrought iron Cast iron Ni-Resist (high-nickel cast iron) Type 410 stainless steel (active) 50-50 lead-tin solder Type 304 stainless steel (active) Type 316 stainless steel (active) Lead Tin Copper...