Modelling and sensitivity analysis of twist springback in deep drawing of dual-phase steel

2016 ◽  
Vol 90 ◽  
pp. 204-217 ◽  
Author(s):  
Xin Xue ◽  
Juan Liao ◽  
Gabriela Vincze ◽  
José Sousa ◽  
Frédéric Barlat ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Deep Drawing ◽  
Dual Phase Steel ◽  
Dual Phase ◽  
Twist Springback

Twist springback characteristics of dual-phase steel sheet after non-axisymmetric deep drawing

2015 ◽  
Vol 10 (2) ◽  
pp. 267-278 ◽  
Author(s):  
Xin Xue ◽  
Juan Liao ◽  
Gabriela Vincze ◽  
Frédéric Barlat
Keyword(s):  
Deep Drawing ◽  
Steel Sheet ◽  
Dual Phase Steel ◽  
Dual Phase ◽  
Twist Springback

Application of Regression Trees in Optimization of Metal Forming Process

2014 ◽  
Vol 622-623 ◽  
pp. 749-755 ◽  
Author(s):  
Krzysztof Regulski ◽  
Danuta Szeliga ◽  
Jan Kusiak
Keyword(s):  
Sensitivity Analysis ◽  
Process Parameters ◽  
Dual Phase Steel ◽  
Deterministic Model ◽  
Computational Cost ◽  
Regression Trees ◽  
Dual Phase ◽  
Forming Process ◽  
Optimization Of Process Parameters ◽  
Thermomechanical Processes

Application of sensitivity analysis in optimization of process parameters of production processes for innovative materials, e.g. dual phase steel, requires deterministic model of thermomechanical processes and large datasets that covers whole surface of results. Difficulties in optimization of process parameters correspond with large number of control variables, which should be considered in the technology design. Furthermore, conduction of such analysis takes the great computational cost. Presented work concerns possibility of application of regression trees, especially CART model, in preliminary analysis for sensitivity analysis. Use of data mining algorithms enables acquiring of preliminary, rough results: relationships among parameters of the hot rolling process of dual phase steel strips and rules of optimization of this process, it also does not require any apriori knowledge about thermomechanical processes.

Comparison of Experimental and Simulated Results for a Mild Steel and a Dual-Phase Steel Deformed under Tension and Deep-Drawing

2002 ◽  
Vol 230-232 ◽  
pp. 549-554 ◽  
Author(s):  
S. Thuillier ◽  
J. Luís Alves ◽  
Luís Filipe Menezes ◽  
P.Y. Manach
Keyword(s):  
Mild Steel ◽  
Deep Drawing ◽  
Dual Phase Steel ◽  
Dual Phase

Investigations of hot-dip galvanized dual-phase steel (DP600+Z) sheet metal on selectively oxidized tool steel surfaces under dry deep-drawing conditions

Wear ◽  
2021 ◽  
pp. 203742
Author(s):  
Simon Schöler ◽  
André Langohr ◽  
Fahrettin Özkaya ◽  
Kai Möhwald ◽  
Bernd-Arno Behrens ◽  
...  
Keyword(s):  
Sheet Metal ◽  
Tool Steel ◽  
Deep Drawing ◽  
Dual Phase Steel ◽  
Dual Phase ◽  
Steel Surfaces ◽  
Steel Dp600

Microstructure and Recrystallization Texture Characterization of Cold-Rolled Dual-Phase Steel

2012 ◽  
Vol 430-432 ◽  
pp. 1223-1226
Author(s):  
Zhi Gang Wang ◽  
Zheng Zhi Zhao ◽  
Ai Min Zhao ◽  
Jie Yun Ye
Keyword(s):  
Deep Drawing ◽  
Recrystallization Texture ◽  
Dual Phase Steel ◽  
Rolled Plate ◽  
Dual Phase ◽  
Dp Steels ◽  
Xrd Techniques ◽  
Hot Rolled ◽  
Texture Characterization

Deep drawing dual phase steel was designed and trial-produced in the laboratory. The microstructure and recrystallization texture was studied using OM,TEM and XRD techniques. The results show that texture components typically in DP steels are γ (<111>//ND) and α (<110>//RD) fibers, which is partly attributed to the precipitation of Mo-based carbides in hot-rolled plate. Besides, {554}<225> and {332}<113> texture components are also founded in deep drawing DP steels, which are beneficial to improvement of drawability. With the increasing of annealing temperature, the tensile strength and elongation of DP steels are increased and decreased, respectively, and the r value is reduced slightly.

Warm Forming Simulation of Dual-Phase Steel Tailor-Welded Blanks Based on Thermo-Mechanical Coupled Method

2011 ◽  
Vol 291-294 ◽  
pp. 494-498 ◽  
Author(s):  
Yi Ding ◽  
Xiang Jun Liu ◽  
Yu Qin Guo ◽  
Wei Chen
Keyword(s):  
Deep Drawing ◽  
Dual Phase Steel ◽  
Elevated Temperatures ◽  
Element Model ◽  
Warm Forming ◽  
Dual Phase ◽  
Forming Simulation ◽  
Tailor Welded Blanks ◽  
Forming Temperature ◽  
Abaqus Software

A thermo-mechanical coupled finite element model for warm forming of dual-phase steel (DP) laser tailor-welded blanks (TWBs) was established based on ABAQUS software. The isothermal deep drawing of rectangular cups at elevated temperatures and the non-isothermal deep drawing at the temperature of 400°C were simulated. The distributions of temperature and differences between the isothermal and non-isothermal conditions were discussed. The results show that the temperature has great effect on the warm forming of DP-TWBs, and it achieves the best formability at the forming temperature of 400°C, and the non-isothermal deep drawing can further improve the warm formability.

scholarly journals Effect of Annealing Process on Microstructure, Texture, and Mechanical Properties of a Fe-Si-Cr-Mo-C Deep Drawing Dual-Phase Steel

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 777
Author(s):  
Hongbo Pan ◽  
Xiaohui Shen ◽  
Dongyang Li ◽  
Yonggang Liu ◽  
Jinghua Cao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Cooling Rate ◽  
Deep Drawing ◽  
Dual Phase Steel ◽  
Annealing Temperature ◽  
Recrystallization Process ◽  
Dual Phase ◽  
R Value ◽  
Thermal Dilation

Dual phase steel generally has poor deep drawing property with a low r value less than 1.0, making it difficult to be used for deep drawing automotive parts. In order to improve the mechanical properties of the steel through heat treatment, effect of heat treatments with different conditions on a Fe-Si-Cr-Mo-C deep drawing dual-phase steel was investigated with the aim of identifying effective heat treatment parameters for effective modification towards optimal properties. Relevant thermal dilation and heat treatment experiments were performed. Corresponding characters were investigated. The results show that island martensite can be obtained at low cooling rate. With the increase of cooling rate, the formation of pearlite and bainite is favored. During annealing at low temperatures, recrystallization of the steel is incomplete with the presence of the shear bands. With the increase of annealing temperature, the recrystallization process is gradually complete, and the number of high angle grain boundaries increases significantly. The ratio of gamma orientation components to alpha orientation components decreases first and then increases with the increase of annealing temperature. The strain hardening exponent and r value show an upward trend with respect to annealing temperature, and the r value is as high as 1.15.

Texture evolution of monolithic-phase and dual-phase steel sheets during a deep-drawing process

2011 ◽  
Vol 17 (3) ◽  
pp. 403-412 ◽  
Author(s):  
Hoe-Seok Yang ◽  
Baek-Seok Seong ◽  
Seong-Ho Han ◽  
Shi-Hoon Choi
Keyword(s):  
Deep Drawing ◽  
Dual Phase Steel ◽  
Texture Evolution ◽  
Dual Phase ◽  
Drawing Process ◽  
Deep Drawing Process ◽  
Steel Sheets
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