Experimental and numerical studies on the formability of TB5 titanium sheet in rubber cold forming

Chen, Lei; Chen, Huiqin; Wu, Chunyang; Tong, Shuiguang

doi:10.1007/s00170-016-8366-1

Cited by 5 publications

(2 citation statements)

References 18 publications

(20 reference statements)

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“…These simulation parameters have been optimized and proved to be effective for rubber forming. 22 Many simulations have been done to compare the effects of different parameters on the forming results. The size ranges of the a, b, c, and d are 50°-60°, 5-20 mm, 5-10 mm, and 20-35 mm, respectively.…”

Section: Finite Element Simulationmentioning

confidence: 99%

Numerical and experimental studies on wrinkling control methods of sheet metal part with high curvature and large flange in rubber forming

Chen

Bai²,

Jiang

et al. 2019

Advances in Mechanical Engineering

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Wrinkling is one of the main failure modes in sheet metal forming process and may lead to assembly problems of the parts. Control of wrinkling is difficult due to the complex deformation behavior of the sheet metal. A finite element model for side blankholder method to control wrinkling was established and used for the simulation. Trials and simulations were conducted to analyze the parameters of wrinkling characteristics. Results show that with the increase in the angle of the side blankholder, the resistance force of the side blankholder decreases. The blank length on the side blankholder should be small enough. The fillet radius of the side blankholder should be large enough to reduce the deformation. The bottom gap between the die and the side blankholder cannot be too large because the support of the blank will decrease in the forming process. In order to verify the simulation results, three blank lengths (20, 15, and 5 mm) over the side blankholder were used in the experiment. The results of the comparison tests testify the reliability of the simulation. The optimal parameter of the blank length is 5 mm. A new clamp method was designed for wrinkling control to overcome the shortcomings of the side blankholder method. The precision of the part met the requirement using soft rubber and two layers of rubber plates.

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Section: Finite Element Simulationmentioning

confidence: 99%

Numerical and experimental studies on wrinkling control methods of sheet metal part with high curvature and large flange in rubber forming

Chen

Bai²,

Jiang

et al. 2019

Advances in Mechanical Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…At present, one of the most common approaches for reducing wrinkles in rubber forming is the side blank holder. Chen et al(2016) investigated the phenomena and mechanisms of the formability of TB5 titanium alloys in rubber forming and found that the largest height of the wrinkles became smaller with the increase of the forming force, while the hardness of the rubber had little effect. Chen et al(2012) conducted finite element analysis of the rubber forming process of high shrinkage bending edges in ABAQUS software, where the results showed that the greater the distance between the side blank holder and the die, the easier the material to wrinkle.…”

Section: Introductionmentioning

confidence: 99%

Research on wrinkling in rubber forming of the convex flange with 2A12 aluminum alloy sheet

Tao

XIAO

et al. 2023

JAMDSM

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The orthogonal experiment was established to reduce the wrinkling of convex flange rubber forming with 2A12 aluminum alloy sheet. The impact factors consisted of the feed of master-cylinder, the hardness of the rubber, and the radius of the die. The rubber forming was simulated for the quantities, widths, and heights of the wrinkles in ABAQUS software, where the results was analyzed by gray correlation. Theoretically the greatest influence on the wrinkles is the feed of master-cylinder that the more the feed is, the smaller the wrinkles are. However, neither in the simulation nor in the experiment, all the wrinkles of the convex flanged parts still could not be flattened when the master-cylinder was fed to the rubber's compression limit. Aiming to further eliminate wrinkling, a new method called multi-stage rubber forming was proposed, in which four extra-cylinders were added to the broadside of the container to enhance the forming force. Both the numerical simulation and experiment were taken into the multi-stage rubber forming, proving that multi-stage rubber forming could effectively reduce the wrinkling in rubber forming of the convex flange, as the feed of the extra-cylinders increased risks of the wrinkles. When the feed of the extra-cylinders was set 8 mm while the master-cylinder 34 mm, the wrinkle of the convex curve bending edge could be eliminated smoothly.

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Regional control of sheet metal formability via establishing differentiated pressure field using heterogeneous elastomers in flexible die forming process

Shu

Xiang

Wang

et al. 2023

Int J Adv Manuf Technol

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Experimental and numerical studies on the formability of TB5 titanium sheet in rubber cold forming

Cited by 5 publications

References 18 publications

Numerical and experimental studies on wrinkling control methods of sheet metal part with high curvature and large flange in rubber forming

Numerical and experimental studies on wrinkling control methods of sheet metal part with high curvature and large flange in rubber forming

Research on wrinkling in rubber forming of the convex flange with 2A12 aluminum alloy sheet

Regional control of sheet metal formability via establishing differentiated pressure field using heterogeneous elastomers in flexible die forming process

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