A prediction model of the extrusion deformation with residual stress on 6063 aluminum alloy aeronautical plate considering different extrusion parameters

Wu, Qiong; Xue, Nian-Pu; Zhang, Yidu; Wu, Jian

doi:10.1007/s00170-020-05102-6

Cited by 5 publications

(3 citation statements)

References 43 publications

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“…The acquisition process of thin copper sample for double-sided lapping including rolling, annealing, turning, annealing, in which the two annealing treatments are to reduce the residual stress. In order to obtain the initial residual stress of the workpiece, the stripping method combined with the electronic speckle pattern interferometry holedrilling method (PRISM by Stresstech Oy, Vaajakoski, Finland) was used to measure the original residual stress [21,22]. To get the average stress on the whole surface, 10 positions were selected randomly on the workpiece for peeling.…”

Section: Initial Residual Stressmentioning

confidence: 99%

Stress-Induced Deformation of Thin Copper Substrate in Double-Sided Lapping

Guo

Pan

et al. 2023

Chin. J. Mech. Eng.

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Double-sided lapping is an precision machining method capable of obtaining high-precision surface. However, during the lapping process of thin pure copper substrate, the workpiece will be warped due to the influence of residual stress, including the machining stress and initial residual stress, which will deteriorate the flatness of the workpiece and ultimately affect the performance of components. In this study, finite element method (FEM) was adopted to study the effect of residual stress-related on the deformation of pure copper substrate during double-sided lapping. Considering the initial residual stress of the workpiece, the stress caused by the lapping and their distribution characteristics, a prediction model was proposed for simulating workpiece machining deformation in lapping process by measuring the material removal rate of the upper and lower surfaces of the workpiece under the corresponding parameters. The results showed that the primary cause of the warping deformation of the workpiece in the double-sided lapping is the redistribution of initial residual stress caused by uneven material removal on the both surfaces. The finite element simulation results were in good agreement with the experimental results.

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Section: Initial Residual Stressmentioning

confidence: 99%

Stress-Induced Deformation of Thin Copper Substrate in Double-Sided Lapping

Guo

Pan

et al. 2023

Chin. J. Mech. Eng.

View full text Add to dashboard Cite

show abstract

“…The acquisition process of thin copper sample for double-sided lapping including rolling, annealing, turning, annealing, in which the two annealing treatments are to reduce the residual stress. In order to obtain the initial residual stress of the workpiece, the stripping method combined with the electronic speckle pattern interferometry hole-drilling method (PRISM by Stresstech Oy, Vaajakoski, Finland) was used to measure the original residual stress [16][17]. To get the average stress on the whole surface, randomly select 10 positions on the workpiece for peeling.…”

Section: Initial Residual Stressmentioning

confidence: 99%

A Research on Stress-Induced Deformation of Thin Copper Substrate in Double-Sided Lapping

Guo¹,

He²,

Wang³

et al. 2021

Preprint

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Double-sided lapping is an ultra-precision machining method capable of obtaining high-precision surface. However, during the lapping process of thin pure copper substrate, the workpiece will be warped due to the influence of residual stress-related, including the processing stress and initial residual stress, which will deteriorate the flatness of the workpiece and ultimately affect the performance of components. In this study, finite element method (FEM) was adopted to study the effect of residual stress-related on the deformation of pure copper substrate during double-sided lapping. Considering the initial residual stress of the workpiece, the stress caused by the lapping and their distribution characteristics, a prediction model was proposed for simulating workpiece machining deformation in lapping process by measuring the material removal rate of the upper and lower surfaces of the workpiece under the corresponding parameters. The results showed that the primary cause of the warping deformation of the workpiece in the double-sided lapping is the redistribution of initial residual stress caused by uneven removal of double-sided material. The finite element simulation results were in good agreement with the experimental results.

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“…erefore, improving the traditional mold design method, using scientific theory to guide production practice, improving mold development speed, saving development cost and improving product quality has become an urgent demand for the development of aluminum profile industry [5]. AA profile extrusion process is a metal material forming process that puts AA ingot into the die cavity of special extrusion die and forces AA to extrude from the die hole under the strong pressure and certain speed of extruder, so as to obtain AA profile with required shape and certain mechanical properties [6]. Its forming principle is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Application of Artificial Intelligence Extrusion Die Model Based on Finite Element Simulation in Decorative Material Aluminum Alloy

Song

Yuan

Wang

2022

Mathematical Problems in Engineering

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At this stage, the varieties and specifications of aluminum profiles continue to increase, and the scope of application continues to expand. The extrusion forming process is the key technology to realize the production of aluminum profiles, and its technological level determines the quality of the profile products and the service life of the mold. However, in actual production, the quality of the die is difficult to guarantee, and it takes multiple die trials and die repairs to produce qualified products. The numerical simulation technology is used to simulate the actual extrusion process, which can track and describe the flow behavior of the metal in real time, reveal the real flow law of the metal, predict the possible defects of the profile during the extrusion process, and adjust the mold structure and process parameters in time. It can not only improve the quality of extruded profiles, but also reduce production costs and shorten the mold production cycle. Based on this, this paper established an extrusion die optimization design model integrating finite element simulation technology and artificial intelligence algorithm. The prediction models were established with the mean square deviation of the section velocity, the maximum extrusion force and the maximum temperature of the section, respectively, and the optimal design of the structure was realized by using the particle swarm algorithm. The experimental results show that the model in this paper can realize the function well, which verifies the validity of the model.

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A prediction model of the extrusion deformation with residual stress on 6063 aluminum alloy aeronautical plate considering different extrusion parameters

Cited by 5 publications

References 43 publications

Stress-Induced Deformation of Thin Copper Substrate in Double-Sided Lapping

Stress-Induced Deformation of Thin Copper Substrate in Double-Sided Lapping

A Research on Stress-Induced Deformation of Thin Copper Substrate in Double-Sided Lapping

Application of Artificial Intelligence Extrusion Die Model Based on Finite Element Simulation in Decorative Material Aluminum Alloy

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