Analysis of snake rolling force and torque with changes of thickness depending on unequal roll radii based on pure aluminum experiments

Hy, Wang; Zh, Wang; Dh, Zhang; Zhao, Dewen

doi:10.1177/0954406215616982

Cited by 6 publications

(4 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Aboutorabi et al [14] represented a theoretical model to calculate the curvature of the thick plate based on the slab method. Wang et al [15] and Jiang et al [16][17][18][19][20] established several analytical models to calculate the curvature of the thick plate and the rolling force of snake rolling. Meng et al [21] represented a model for calculating the rolling force of snake rolling based on the slab method.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Exit Thickness and Its Compensation after Snake Rolling of Aluminum Alloy Thick Plate

Wang

Wei-dong

2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Asymmetrical deformation zone of the snake rolling process results in complex metal flow and unknown edge of the deformation zone. In this study, three assumptions about the location of exit thickness appear and the exit thickness is calculated by those three assumptions. By comparing the exit thickness obtained by formulas and the finite element method, one formula with high accuracy is verified and the plastic deformation of the thick plate under several snake rolling conditions is obtained. The results show that through comparing the minimum thickness in different assumptions, the exit of the plastic deformation zone is located at the midpoint of the line between two work rolls’ axis and the exit thickness is approximately equal to the length of the line which includes that midpoint and locates between the two work rolls in the vertical direction. Then with the increasing offset distance, the exit thickness increases and that leads to less deformation inside the plate. For maintaining the exit thickness equal to the preset value, an exit thickness compensation model is established according to the geometry of the deformation zone and verified by the results of simulations.

show abstract

Section: Introductionmentioning

confidence: 99%

Prediction of Exit Thickness and Its Compensation after Snake Rolling of Aluminum Alloy Thick Plate

Wang

Wei-dong

2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…Aboutorabi et al [13] developed an analytical approach based on a slab method considering the horizontal displacement of the roll and presented a formula to predict the outgoing sheet curvature. Wang et al [14] established an analytical model to predict the rolling force and roll torque.…”

Section: Introductionmentioning

confidence: 99%

Influence of snake rolling on metal flow in hot rolling of aluminum alloy thick plate

Hao

Liu

2020

Mechanics & Industry

View full text Add to dashboard Cite

Most asymmetrical rolling conditions should not appear in regular rolling processes, but for obtaining large deformations inside aluminium alloy thick plates, the asymmetrical rolling process is the most effective method. Snake rolling is adopted for promoting more deformation inside the plates. For exploring the deformation inside an aluminium alloy thick plate, a finite element model for simulating the process of snake rolling is established and the key influence factors are set as initial thickness, speed ratio and offset distance. The results show that deformation inside of the plate increases obviously while the thickness of plate is less than 300 mm after snake rolling. The speed ratio has a positive effect on promoting deformation partly inside of the plate. On the contrary, the offset distance has a negative influence by affecting the exit thickness. A formula for calculating the exit thickness after snake rolling is proposed and validated by data from the finite element models. Thus, snake rolling is suggested to be used in the downstream pass of hot rough rolling considering that the influence of thickness and the offset distance should be controlled in a reasonable range.

show abstract

“…Wang et al used slab method to research many asymmetrical rolling processes, such as asymmetrical rolling [18], asymmetric layer cladding rolling [19,20] and snake rolling [21]. In order to analyze rolling of blade, the multiplane slab method is used in this paper.…”

Section: Introductionmentioning

confidence: 99%

Research on rolling force and stress during rolling process of blade with complex surface based on multi-plane slab method

Kong

Jiang

Liang

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

The blade with complex surface is an important component in aircraft engines. Since manufacturing of the blade should be not only precise but also efficient, cold rolling is chosen to be a good way to realize this process. Though the rolling process of plate is researched well during these years, that of the blade is still not studied in detail. Especially, as the main parameters of plastic deformation, the rolling forces and stresses should be researched carefully. In order to analyze rolling process of the blade with complex surface, an analytical method with multi-planes is presented in three zones one by one. Based on the multi-plane slab method, both rolling force and stress distributions are received. Then simulations are also used to verify the analytical results. At last, the multi-plane analytical model and method presented in this paper can be used to strongly support the forming of blade. This multi-plane slab method can be also used to analyze other forming processing technologies for complex surfaces. Keyword Multi-plane analytical model • Simulation • Blade rolling • Rolling force • Stress distribution List of symbols k Shear yield stress of blade, k = s ∕ √ 3 m Friction factors on the surfaces between blade and rolls Horizontal stress acting on blade. i and o are in enter and exit of bite zone,respectively Friction stresses acting on the surfaces between blade and rolls h i Initial thickness of blade H o Distance between two rolls , y Radian and axial distance upper and lower rolls, respectively

show abstract

Analysis of snake rolling force and torque with changes of thickness depending on unequal roll radii based on pure aluminum experiments

Cited by 6 publications

References 17 publications

Prediction of Exit Thickness and Its Compensation after Snake Rolling of Aluminum Alloy Thick Plate

Prediction of Exit Thickness and Its Compensation after Snake Rolling of Aluminum Alloy Thick Plate

Influence of snake rolling on metal flow in hot rolling of aluminum alloy thick plate

Research on rolling force and stress during rolling process of blade with complex surface based on multi-plane slab method

Contact Info

Product

Resources

About