Knowledge-based substep deterministic optimization of large diameter thin-walled Al-alloy tube bending

Li, Hengyun; Yang, He; Xu, Jiao; Liu, H.; Wang, D.; Li, G. J.

doi:10.1007/s00170-013-4811-6

Cited by 11 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The response surface 3D plot expressing the interaction was drawn according to Equation (8), as shown in Figure 7. It can be seen that the minimum of WDO can be reached in the range of small Boosting and large M clearance.…”

Section: Interaction Of Important Factors On Wdomentioning

confidence: 99%

Multi-Objective Parameter Optimization for Cross-Sectional Deformation of Double-Ridged Rectangular Tube in Rotary Draw Bending by Using Response Surface Methodology and NSGA-II

Zhang

Liu

2017

Metals

View full text Add to dashboard Cite

Abstract:Cross-sectional deformation of double-ridged rectangular tube (DRRT) inevitably occurs due to the inhomogeneous deformation induced by external boundary conditions in rotary draw bending (RDB). Unreasonable factor combination would aggravate the cross-sectional deformation of DRRT. So, a powerful and efficient method combining Response Surface Methodology (RSM) and Non-Sorted Genetic Algorithm II (NSGA-II) was proposed to optimize the factors to control the cross-sectional deformation of DRRT in RDB. Firstly, an orthogonal experiment was used to screen out the important factors. It was obtained that three factors-clearance between DRRT and mandrel, clearance between DRRT and bending die, and boosting of pressure die-have an important influence on the cross-sectional deformation of DRRT. It can also be observed that the variation trend of flange sagging (FS) is always consistent with that of space deformation between ridges (SDR) with the changing of factors. RSM based on a Box-Behnken design was then used to establish response surface models. The proposed response surface models were used to analyze the relationship of the important parameters to the responses, such as space deformation between ridges, and width deformation of outer and inner ridge grooves (WDO and WDI). Finally, multi-objective parameter optimization for the cross-sectional deformation of DRRT in RDB was performed by using the established model and NSGA-II algorithm. The interaction of responses was revealed and the value range of each response in the space of Pareto optimal solutions was determined. It can be observed that there is always an evident conflict between SDR and WDO in the space of Pareto optimal solutions. By using this optimization method, the absolute values of SDR and WDI were significantly reduced-by 13.17% and 17.97%, respectively-compared with those before optimization, while WDO just increase only a little.

show abstract

Section: Interaction Of Important Factors On Wdomentioning

confidence: 99%

Multi-Objective Parameter Optimization for Cross-Sectional Deformation of Double-Ridged Rectangular Tube in Rotary Draw Bending by Using Response Surface Methodology and NSGA-II

Zhang

Liu

2017

Metals

View full text Add to dashboard Cite

show abstract

“…Zhao et al 9,10 investigated the influence of mandrel, clearance and friction between mandrel and tube on wrinkling in rotary-draw bending process. These above studies are mostly focused on pure bending process or the effect of independent parameter on wrinkling, however sufficiently solve the complex optimization problems of tube rotary-draw bending with multi-factors is scarce, 11 especially for the thin-walled rectangular tube. Therefore, in this study, the optimal design of clearances and frictions has been done for the rotary-draw bending process using the method of virtual experiment-regression prediction-sequential quadratic programming (SQP).…”

Section: Introductionmentioning

confidence: 99%

Optimal design of process parameters of rotary-draw bending process for thin-walled rectangular tube of aluminum alloy

Zhao

Liu

Zhang

et al. 2014

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

The rotary-draw bending process of thin-walled rectangular tube is a complex process with the interaction of many factors. The wrinkling may be produced if the process parameters are inappropriate. So, here, based on finite element numerical simulation, and taking the clearances and the frictions between tube and dies as the optimal design variables and the wrinkling height as the optimal objective, the optimization design for rotary-draw bending process of thin-walled rectangular 3A21 aluminum alloy tube has been carried out by using sequential quadratic programming method. Then, the recommended values of the clearances between mandrel, wiper die and bending die and tube, and the friction coefficients between pressure die, mandrel and wiper die and tube are obtained. The achievements of this study are significant to reduce the manufacturing cost and increase efficiency and bending quality.

show abstract

Deformation analysis of hydro-bending of bi-layered metal tubes

Xie

Teng

Yuan

2015

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Knowledge-based substep deterministic optimization of large diameter thin-walled Al-alloy tube bending

Cited by 11 publications

References 18 publications

Multi-Objective Parameter Optimization for Cross-Sectional Deformation of Double-Ridged Rectangular Tube in Rotary Draw Bending by Using Response Surface Methodology and NSGA-II

Multi-Objective Parameter Optimization for Cross-Sectional Deformation of Double-Ridged Rectangular Tube in Rotary Draw Bending by Using Response Surface Methodology and NSGA-II

Optimal design of process parameters of rotary-draw bending process for thin-walled rectangular tube of aluminum alloy

Deformation analysis of hydro-bending of bi-layered metal tubes

Contact Info

Product

Resources

About