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An approximate method of estimating the yield of a strip under tension cut by serrated surfaces on opposite faces

Article Abstract:

A roll with asperities as a rigid body with a regular serrated surface and the rolling process as an indentation, and uses the plane strain model and slip-line theory are presented, to determine the critical pressure that is required to yield the strip throughout the thickness beneath the tips of the asperities. The study concluded that when the tooth angle is smaller than a critical angle, the sharper the tooth, the lower the average critical pressure needed to make the strip yield.

Author: Shi, Jingyu, McElwain, D. L. S., Domanti, S. A.
Publisher: American Society of Mechanical Engineers
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2003
Rolling mill machinery, Rolling Mill Machinery and Equipment Manufacturing, Materials, Mechanical properties, Rolling-mill machinery, Roll forming (Metalwork)

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An investigation of the effect of speeds of work rolls on rolling strip

Article Abstract:

The varying speeds between the upper work roll and the lower work roll in the rolling process for an aluminium strip results in the strip curvature. Upward curving of the strip in observed when the speed is faster or the radius is more of the lower work roll for the identical cooling conditions of the strip and work rolls. Slight upward curvature is also noticed when the conditions are different, and the speed and radii of the work rolls are unaltered.

Author: Y.C. Cheng, Zone-Ching Lin
Publisher: American Society of Mechanical Engineers
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1995
Research, Manufacturing processes, Manufacturing, Aluminum, Aluminum (Metal)

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Serrated flow and surface markings in aluminium alloys

Article Abstract:

Serrated flow and linked progressive surface markings can limit the use of some aluminium sheet alloys for automotive body exteriors. The phenomenon is approached, from the localization theory of continuum mechanics, and from classical atomistic and dislocation theories. Plane strain tension tests were undertaken on an Al-Mg alloy, and provided an insight into the myth of non-appearance of band surface markings under biaxial tension strain states.

Author: Li, Ming, Lege, Daniel J.
Publisher: American Society of Mechanical Engineers
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1998
Physiological aspects, Alloys

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Subjects list: Rolling (Metalworking), Rolling (Metalwork)
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