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billets
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Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006467
EISBN: 978-1-62708-190-0
... provides a discussion on electromagnetic systems, eddy-current systems, and magnetic permeability systems for detection of flaws on steel bars. It concludes with a description of nondestructive inspection of steel billets. cracks eddy-current system electromagnetic inspection inclusions liquid...
Abstract
This article focuses on nondestructive inspection of steel bars. The primary objective in the nondestructive inspection of steel bars and wire is to detect conditions in the material that may be detrimental to the satisfactory end use of the product. The article discusses various types of flaws encountered in the inspection of steel bars, including porosity, inclusions, scabs, cracks, seams, and laps. Inspection methods, such as magnetic-particle inspection. liquid penetrant inspection, ultrasonic inspection, and electromagnetic inspection, of steel bars are also described. The article provides a discussion on electromagnetic systems, eddy-current systems, and magnetic permeability systems for detection of flaws on steel bars. It concludes with a description of nondestructive inspection of steel billets.
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
..., and brazing and fabricating the copper coil winding for heating billets, bars, and slabs. The article describes refractory selection criteria and the methods of mounting and securing the induction coil winding, and presents general refractory installation guidelines for induction heating applications...
Abstract
This article is a compilation of best practices, materials, and techniques for the design and manufacture of modern induction forge coils. It presents the basics of induction coil design along with various design considerations, namely, copper tube selection, water flow considerations, and brazing and fabricating the copper coil winding for heating billets, bars, and slabs. The article describes refractory selection criteria and the methods of mounting and securing the induction coil winding, and presents general refractory installation guidelines for induction heating applications. It provides information on curing, form removal, dryout, and coil refractory seasoning. Wear rails that are designed to prevent damage to the coil refractory and subsequent coil winding are also discussed. The article concludes with a discussion on preventive maintenance practices for induction forging coils.
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
... Abstract This article provides a rough estimate of the basic parameters, including coil efficiency, power, and frequency in induction heating of billets, rods, and bars. It focuses on the frequency selection for heating solid cylinders made of nonmagnetic metals, frequency selection when...
Abstract
This article provides a rough estimate of the basic parameters, including coil efficiency, power, and frequency in induction heating of billets, rods, and bars. It focuses on the frequency selection for heating solid cylinders made of nonmagnetic metals, frequency selection when heating solid cylinders made from nonmagnetic alloys, and frequency selection when heating solid cylinders made from magnetic alloys. The article describes several design concepts that can be used for induction billet heating, namely, static heating and progressive/continuous heating. It presents the four major factors associated with the location and magnitude of subsurface overheating: frequency, refractory, final temperature, and power distribution along the heating line. The article summarizes the pros and cons of using a single power supply. It also reviews the design features of modular systems, and concludes with information on the temperature profile modeling software.
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003989
EISBN: 978-1-62708-185-6
... Abstract This article describes the presses, transportation equipment, and manufacturing processes associated with cogging. It discusses the practical and metallurgical issues encountered during the conversion of ingot to billet. The article explains the use of numerical modeling as part...
Abstract
This article describes the presses, transportation equipment, and manufacturing processes associated with cogging. It discusses the practical and metallurgical issues encountered during the conversion of ingot to billet. The article explains the use of numerical modeling as part of the continuing efforts to reduce the cost and time associated with developing new cogging sequences, increase the yield, make the processes more robust, and increase the quality of the produced product.
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Published: 01 December 2008
Fig. 10 Cross-sectional views of typical continuous casting molds for (a) billets, (b) blooms, and (c) slabs. Source: Ref 4
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Published: 01 December 2008
Fig. 8 Example of billets that underwent one method of offline rheological testing. Courtesy of S.C. Bergsma, Northwest Aluminum Co.
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Published: 01 December 2008
Fig. 1 Schematic of the spray casting process for the manufacture of billets
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Published: 01 January 2005
Fig. 19 Temperature of nine billets (eight are shown) in a 1095 °C (2000 °F) furnance. Note that the proximity between the parts affects the temperature.
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in Metallography and Microstructures of Magnesium and Its Alloys
> Metallography and Microstructures
Published: 01 December 2004
Fig. 8 Macroetched sections of AZ31 direct chill cast billets showing large cracks. The cracks are mostly intergranular in nature. Etchant 5, Table 6 . Courtesy of F. Pravdic, ARC Leichtmetallkompetenzzentrum Ranshofen
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Published: 01 December 1998
Fig. 15 Forging pressures required for the upsetting of magnesium alloy billets between flat dies. (a) Alloy AZ80A; strain rate: 0.11 s −1 . (b) Alloy AZ61A; strain rate: 0.11 s −1 . (c) Alloy AZ31B; strain rate: 0.7 s −1
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in Friction and Wear of Aluminum Alloys and Composites[1]
> Properties and Selection of Aluminum Alloys
Published: 15 June 2019
Fig. 4 Schematic of the spray casting process for the manufacture of billets
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in Design and Fabrication of Induction Coils for Heating Bars, Billets, and Slabs
> Induction Heating and Heat Treatment
Published: 09 June 2014
Fig. 1 Multisection in-line coil used to heat billets to forging temperatures. Courtesy of Ajax Tocco Magnethermic
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in Design and Fabrication of Induction Coils for Heating Bars, Billets, and Slabs
> Induction Heating and Heat Treatment
Published: 09 June 2014
Fig. 14 Monolithic all-cast block coil used to heat bars and billets. Courtesy of Ajax Tocco Magnethermic
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Published: 30 September 2015
Fig. 18 Forging modes used in production of billets for mechanical testing. Dimensions, given in inches, are average values.
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Published: 30 September 2015
Fig. 5 Process steps of Homogenous Metals, Inc. to produce powdered metal billets. Used with permission from MIT
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Published: 09 June 2014
Fig. 1 Billets or bars are fully or partially heated in cut lengths or continuously, and are forged in presses, hammers, or upsetters. Courtesy of Inductoheat, Inc.
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Published: 01 January 2005
Fig. 5 Coextrusion billets for hydrostatic extrusion. (a) Insertion method. (b) Casting method. (c) Multifilament billet. Based on Ref 16
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Published: 01 January 2005
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Published: 01 January 2005
Fig. 30 Deformation patterns in cylindrical billets upset between flat, parallel dies. Source: Ref 2 , Ref 62 , Ref 63
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