Cold rolling of flat metal products: Contribution of mathematical modelling

Domanti, S.; McElwain, D. L. S.

doi:10.1243/0954405981515518

Cited by 6 publications

(4 citation statements)

References 63 publications

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“…Although the surface roughness of roll and strip has been reported to have effect on the oil film thickness formation at the roll–strip interface and the thickness of thin rolled foil, 16,18,19 in this study, the average surface roughness of the roll was measured as Rq = 0.7 µm and the strip specimen was measured as Rq = 0.9 µm. The measured rolled strip thicknesses were within the range of 3.5–4.5 mm.…”

Section: Resultsmentioning

confidence: 78%

“…The difference in measured values of the strip thickness from the two methods may be attributed to the associated difficulties in using the manual method due to imperfect surface profile of material and also the elastic recovery of the rolled strip at the roll gap exit which has been reported by some authors. 16,17 Although the surface roughness of roll and strip has been reported to have effect on the oil film thickness formation at the roll-strip interface and the thickness of thin rolled foil, 16,18,19 in this study, the average surface roughness of the roll was measured as Rq = 0.7 mm and the strip specimen was measured as Rq = 0.9 mm. The measured rolled strip thicknesses were within the range of 3.5-4.5 mm.…”

Section: Determination Of the Strip Thickness Using Tofmentioning

confidence: 73%

Section: Resultsmentioning

confidence: 99%

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Non-intrusive measurement of strip thickness and roll-bite length in metal rolling

Adeyemi

Dwyer-Joyce

Pinna

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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It is important to monitor the rolled strip thickness standard to minimize material waste and loss of profit due to strip flatness defects, and also to maintain the product’s size and dimensional homogeneity. Several online measurement techniques are available but none of this can give an in situ measurement within the roll bite. Due to this, a novice experimental method utilizing ultrasonic reflection sensor mounted on one roll was developed for in situ measurement of strip thickness and roll-bite length during cold rolling process. A pitch–catch method was used whereby a piezoelectric element generated an ultrasonic pulse and transmitted to the contact interface evaluated on a pilot mill. The reflected signal was captured by a second piezoelectric element and analysed to determine the condition at the strip–roll interface. This approach was implemented on a pilot mill and reflections from various locations in the roll bite during the rolling were recorded. Recorded signals were used to estimate the rolled strip thickness and roll-bite length after the rolling process.

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Section: Resultsmentioning

confidence: 78%

Section: Determination Of the Strip Thickness Using Tofmentioning

confidence: 73%

See 1 more Smart Citation

Non-intrusive measurement of strip thickness and roll-bite length in metal rolling

Adeyemi

Dwyer-Joyce

Pinna

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…However, the formed parts are realized by bending in one direction; they belong to the scope of the 2D continuous rolling. 3–5…”

Section: Introductionmentioning

confidence: 99%

The shape analysis of three-dimensional flexible rolling method

Ningjia

2015

Proceedings of the Institution of Mechanical Engineers, Part B:

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A new forming method, three-dimensional flexible rolling, is proposed for three-dimensional surface parts, which can form the parts effectively with the dieless characteristics. In this study, the shape of bending rolls is circle and the bending radii of upper and lower rolls are different; therefore, the roll gap is non-uniform. Because of the roll gap, an uneven compression appears at the transversal direction, which leads to a non-uniform elongation in feeding direction. The parts bend in two directions at the same time, and the three-dimensional surface shape is obtained. The forming rules of flexible rolling are proposed to analyze the relationship between the pressure ratio and the deformation extent of double-curved surface. The function between the non-uniform roll gap and the bending radius is deduced from the theory of invariable volume. An experimental device is developed to do the forming experiments. The feasibility of the device and the advantage of the method have been validated through numbers of experiments. Typical three-dimensional surface parts such as the convex and saddle parts have been completed for researching and analyzing. Some fine numerical simulation results of flexible rolling have been obtained. Finally, the simulation results are compared with the actual results to analyze the shape and illustrate the forming effect.

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Edge-wave buckling of rolled elastic strips: asymptotic results

Coman

2009

Acta Mech

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Cold rolling of flat metal products: Contribution of mathematical modelling

Cited by 6 publications

References 63 publications

Non-intrusive measurement of strip thickness and roll-bite length in metal rolling

Non-intrusive measurement of strip thickness and roll-bite length in metal rolling

The shape analysis of three-dimensional flexible rolling method

Edge-wave buckling of rolled elastic strips: asymptotic results

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