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Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005840
EISBN: 978-1-62708-167-2
...Selection of copper tubing for induction coils Table 1 Selection of copper tubing for induction coils Frequency Theoretical wall thickness (= 2 × reference depth) (a) Typical wall thickness available Minimum tube diameter (b) mm in. mm in. mm in. 60 Hz 16.8 0.662 14.0...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005842
EISBN: 978-1-62708-167-2
...Abstract Abstract This article focuses on the frequently encountered causes of induction coil failures and typical failure modes in fabrication of hardening inductors, tooth-by-tooth gear-hardening inductors, clamshell inductors, contactless inductors, split-return inductors, butterfly...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005839
EISBN: 978-1-62708-167-2
... of quick-change adapters. Courtesy of Capital Induction Fig. 27 Temperature distribution in the induction coil with 1 mm (0.048 in.) wall thickness, 10 kHz frequency, 5000 A current, and low-pressure cooling Fig. 28 Temperature dynamics during heating at critical points with 1 mm (0.048...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
... Fig. 10 Simple temperature-control system. IR, infrared. Source: Ref 7 Fig. 14 Schematic circuit diagrams of low- to medium-frequency heat stations illustrating capacitor and transformer adjustments when using (a) an autotransformer for high-impedance induction coils and (b) an isolation...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005130
EISBN: 978-1-62708-186-3
...Abstract Abstract This article begins with a discussion on the energy sources used for thermal forming. These include electric induction coil, gas flame, plasma torch, and laser beam. The article discusses the mechanisms of forming and different modes of deformation. It describes the effect...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005846
EISBN: 978-1-62708-167-2
... Fig. 1 Magnetic circuit in a single turn coil with magnetic flux concentrator heating cylindrical part from the outside: Φ = total. Source: Ref 3 Fig. 13 Schematic of channel-type induction melting furnace. Source: Ref 13 Fig. 16 Comparison of power density in the melt...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005516
EISBN: 978-1-62708-197-9
...Abstract Abstract The most popular metal hot working processes for which induction heating is applied are forging, forming, extrusion, and rolling. This article focuses on estimation techniques to determine basic induction heating process parameters, including coil power, length of heating line...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005900
EISBN: 978-1-62708-167-2
...Abstract Abstract This article discusses the principle, coil design, types and operation of a vacuum induction furnace. It describes the operation parameters that should be considered during the functioning of the induction furnace. electroslag remelting induction coils vacuum arc...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005899
EISBN: 978-1-62708-167-2
... for mechanically compacting dry masses (a) in the crucible wall and (b) on the crucible floor. Source: Ref 4 Fig. 9 Demonstration piece for a high-power induction coil. Courtesy of ABP Induction Systems. Source: Ref 8 Fig. 10 Picture of a four-conductor induction coil for a 35 ton, 16 MW...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005888
EISBN: 978-1-62708-167-2
... Example of an induction bar/billet heating system that uses four large-size inverters supplying power to 12 inline coils. Courtesy of Inductotherm Heating & Welding Ltd., UK Fig. 22 Conventional surface-to-core temperature profiles of induction system for heating 64 mm (2.5 in.) diameter...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005897
EISBN: 978-1-62708-167-2
... the critical parameters: workpiece power estimation; estimation of electrical and thermal efficiency of the coil; and frequency selection for heating solid cylinders, tubes, pipes, slabs, plates, strips, and rectangular workpieces. electrical efficiency frequency induction coils induction hardening...
Book Chapter

By J.F. Libsch
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001387
EISBN: 978-1-62708-173-3
... brazing. The article illustrates several basic joint designs for induction brazing as well as typical coils and some frequent applications and lists joint parameters for parts which are to be brazed by induction heating. It concludes with a discussion on the effect of thermal expansion on stress...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003200
EISBN: 978-1-62708-199-3
... and induced currents produced by various induction coils Abstract Abstract This article discusses the fundamentals and applications of localized heat treating methods: induction hardening and tempering, laser surface transformation hardening, and electron-beam heat treatment. The article provides...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005841
EISBN: 978-1-62708-167-2
... Butterfly coil with quick-disconnect mounting. Courtesy of Radyne Corporation, an Inductotherm Group Co. Fig. 26 Extension of heating zone to estimate total heated mass in power requirement calculation. Source: Ref 7 Fig. 1 Typical joint and coil designs used in induction brazing...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005850
EISBN: 978-1-62708-167-2
... induction heating coils power supplies programmable logic controllers quenching MAINTENANCE OF INDUCTION heating systems has long been ignored due to the assumption that “everything is fine as long as good workpieces are produced.” However, there are high costs associated with ignoring routine...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005911
EISBN: 978-1-62708-167-2
... melting furnaces glasses induction coils induction melting THE HISTORICAL USE of induction heating relating to glass melting gives some insight into its use in today's glass manufacturing industry. Historical patents are discussed herein, following an introduction to conductivity in glass...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006450
EISBN: 978-1-62708-190-0
... and single-coil system, bridge unbalance system, induction bridge system, and through transmission system. The article concludes with a discussion on the inspection of aircraft structural and engine components. aircraft structures bridge unbalance system coil impedance eddy-current inspection...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001368
EISBN: 978-1-62708-173-3
... currents, that is, the generation of an edge “V.” High-frequency currents can be supplied to the welding process or workpiece by using either an induction coil (known as high-frequency induction welding, HFIW) or electrical contacts (known as high-frequency resistance welding, HFRW). The edge “V...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005583
EISBN: 978-1-62708-174-0
...Historical overview of high-frequency welding of pipe and tubing Table 1 Historical overview of high-frequency welding of pipe and tubing 1940 to 1950—Butt joints Welds in butt joints were made with 10 kHz motor-generator power sources equipped with induction coils that could...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005891
EISBN: 978-1-62708-167-2
... tightly wound turns Fig. 7 Results of computer simulation show an electromagnetic end effect that manifests itself by a distortion of the electromagnetic field at end regions of induction coil. Fig. 8 Normalized surface power density distribution along the length of a heated bar using...