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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390173
EISBN: 978-1-62708-459-8
... Abstract Rolling is unique in that it cannot be conducted without friction. Friction draws the workpiece into the roll gap and facilitates its passage through the deformation zone. This chapter provides an overview of the mechanics and tribology of flat rolling processes and explains how...
Book Chapter

By Okan Gortan, Haydar Livatyali, Peter Groche
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500211
EISBN: 978-1-62708-317-1
... Abstract Roll forming is a process in which flat strip or sheet material is progressively bent as it passes through a series of contoured rollers. This chapter describes the basic configuration and operating principles of a roll forming line and the cross-sectional profiles that can be achieved...
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Published: 30 April 2021
Fig. 2.11 Rolling a ball on a flat produces pure rolling at a point. Rolling a ball in an “almost” conforming raceway produces a line of rolling contact. More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340117
EISBN: 978-1-62708-427-7
... Abstract This chapter provides an overview of the rolling and finishing processes required to create a sheet, plate, or foil product from a direct chill (DC) cast ingot. The flow paths, equipment, and operations are described with a view to the basic evolution of the microstructure, surface...
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Published: 01 January 2015
Fig. 9.6 Typical rolling mill designs used in rolling plate, sheet, strip, and foil More
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Published: 01 January 2015
Fig. 9.9 Two-high rolling mill. This type of mill lends itself to rolling titanium sheet and plate. Courtesy of Timet More
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Published: 01 March 2006
Fig. 11.53 Effect of rolling threads before and after heat treatment on 220 ksi steel bolts. Source: Ref 11.65 More
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Published: 30 April 2021
Fig. 11.23 Model showing how walking is rolling. The knee joint is the axle of the wheel, the foot is part of the rim of a wheel, and the lower leg is a spoke on a wheel. More
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Published: 01 December 1999
Fig. 4.20 Rolling contact fatigue plots for carburized and hardened 3Ni-Cr steel discs. S H = (lb/in. of face width)/(relative radius of curvature) More
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Published: 01 December 1999
Fig. 7.18 Influence of tempering temperature on the rolling-conact fatigue limit of a carburized and hardened alloy steel. More
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Published: 01 December 1999
Fig. 8.23 Effect of rolling speed on the residual stress distribution at the surface of a 0.45% C steel. Source: Ref 26 More
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Published: 30 April 2021
Fig. 2.10 Pure rolling is the velocity of roll “a” is the same as the velocity of roll “b”; V, velocity More
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Published: 30 April 2021
Fig. 3.9 Schematic of a rolling element bearing test; a, test bearing; b, sensors for friction force, temperature, vibration, etc. More
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Published: 30 April 2021
Fig. 3.10 Schematic of a rolling friction test. The farther the ball rolls after leaving the ramp, the lower the rolling resistance of the ball versus the rolling surface. CORR, coefficient of rolling resistance; h, height; d, distance More
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Published: 30 April 2021
Fig. 4.29 Scuffing on the rolling surface of a roller cam More
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Published: 30 April 2021
Fig. 8.6 Railroad track spalling from rolling wear and surface fatigue More
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Published: 01 December 1999
Fig. 4 Effect of core strength and case depth on the rolling-contact fatigue limit of gear steels. Tests involved two 4 in. disks driven by a 2 in. roller. Test piece may have been either one of the disks or the roller. Relative radius of curvature, 2/3. SH units = lb/in. of face width divided More
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Published: 01 August 2018
Fig. 12.51 Longitudinal cross section of fasteners presenting rolling folds or laps in different extents and locations. (a) Lap in the thread crest. (b) Lap close to the thread crest. (c) Lap in the thread root. More
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Published: 01 September 2005
Fig. 2 Graphical representation of rolling velocities of pinion ( V r1 ) and gear ( V r2 ) in relation to sliding velocity More
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Published: 01 September 2005
Fig. 24 Cleanness and rolling contact fatigue life improvements in carburized steels as steelmaking practices have changed. Source: Ref 57 More