Evaluation of drawability of tailor-welded blanks made of titanium alloys Grade 2 || Grade 5

Winowiecka, J.; Więckowski, W.; Zawadzki, Marcin

doi:10.1016/j.commatsci.2013.04.026

Cited by 18 publications

(13 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As previous authors have already identified the JC model parameters for commercially pure titanium (CP-Ti) [ 10 ] or Ta6V [ 14 ], this paper does not claim originality. The present study aimed to provide a complete set of mechanical parameters for the elastic and plastic behavior of the CP-Ti and to evaluate the influence of quasi-static strain rates and sandblasting.…”

Section: Discussionmentioning

confidence: 99%

“…Little mechanical load is generally applied to implants, and Hooke’s law is usually sufficient to model elastic deformations. Young’s modulus values for CP-Ti grade 2 are reported between 105 and 118 GPa in the literature [ 7 , 8 , 9 , 10 ]. Grain boundary sliding is reported during deformation thanks to microscopic analysis, though its impact on the overall mechanical strain is negligible [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Johnson–Cook Parameter Identification for Commercially Pure Titanium at Room Temperature under Quasi-Static Strain Rates

2021

View full text Add to dashboard Cite

Background: To simulate mechanical shocks on an intracranial implant called WIMAGINE®, Clinatec chose a Johnson–Cook model to account for the viscoplastic behavior of grade 2 titanium in a dynamic study using Radioss©. Methods: Thirty tensile specimens were subjected to tensile tests at room temperature, and the influence of the strain rate (8 × 10−3 and 8 × 10−2 s−1) and sandblasting was analyzed. Relaxations were included in the tests to analyze viscosity phenomena. Results: A whole set of parameters was identified for the elastic and plastic parts. Strain rate influence on stress was negligible at these strain rates. As expected, the sandblasting hardened the material during the tests by decreasing the hardening parameters, while local necking occurred at an earlier strain. Conclusions: This article provides the parameters of a Johnson–Cook model to simulate the elastoplastic behavior of pure titanium (T40, grade 2) in Finite Element Model (FEM) software.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Johnson–Cook Parameter Identification for Commercially Pure Titanium at Room Temperature under Quasi-Static Strain Rates

2021

View full text Add to dashboard Cite

show abstract

“…Moreover, sheet-metal forming enables producers to attain near net shape parts without the necessity of additional machining. Further weight reduction can be achieved by applying tailor welded blanks technology [7][8][9] and honeycomb structures [10][11][12]. In order to improve the drawability of titanium sheets, superplastic forming is applied [13].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of forming titanium drawn part

Adamus

Lacki

2015

Meccanica

View full text Add to dashboard Cite

Structure weight is a priority issue in the transport industry, especially in aviation, therefore the demand for drawn parts made of titanium has grown steadily. Titanium in comparison to steel and aluminium has a much more beneficial specific strength so it is used where high mechanical strength and low construction weight are especially essential. In view of its high melting temperature, titanium is also used for aircraft fire walls. Although titanium has excellent properties such as high strength, low weight and good corrosion resistance, it is very difficult in production and processing. There are many technological problems that have to be overcome in forming titanium sheets. Titanium, especially titanium alloy sheets have poor drawability, high springback and low tribological properties. In the paper, the numerical analysis of forming a titanium panel made of commercially pure Gr 2 titanium is presented. The numerical simulation has been performed using the PamStamp program, dedicated to sheet-metal forming, based on the finite element method. In addition to the stress and strain distribution being analysed, the influence of the holding-down force and frictional conditions on the forming process are examined. The quality of the obtained titanium drawn-part is assessed basing on the correctness of its shape and dimensions with the reference ones, as well as on material thinning.

show abstract

“…Thus the aim of sheet-metal forming design is to guarantee that strains in the sheet do not approach this limit curve. [23][24][25][26][27], underline that a safe forming zone with an appropriate margin between it and the limit curve must be identified just in case there are some slight changes in the material properties or process conditions. Most works discuss empirical methods to determine FLC, but with the advent of computational techniques, numerical models based on ductile fracture criteria to predict FLCs [12,28,29] appear increasingly more often.…”

Section: Introductionmentioning

confidence: 99%

Experimental And Theoretical Determination Of Forming Limit Curve

Adamus¹,

Dyja²,

Motyka³

2015

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

ExpErImEntal and thEorEtIcal dEtErmInatIon of formIng lImIt curvE DoświaDczalno-teoretyczne wyznaczanie krzywej oDkształceń granicznychThe paper presents a method for determining forming limit curves based on a combination of experiments with finite element analysis. In the experiment a set of 6 samples with different geometries underwent plastic deformation in stretch forming till the appearance of fracture. The heights of the stamped parts at fracture moment were measured. The sheet -metal forming process for each sample was numerically simulated using Finite Element Analysis (FEA). The values of the calculated plastic strains at the moment when the simulated cup reaches the height of the real cup at fracture initiation were marked on the FLC. FLCs for stainless steel sheets: ASM 5504, 5596 and 5599 have been determined. The resultant FLCs are then used in the numerical simulations of sheet -metal forming. A comparison between the strains in the numerically simulated drawnparts and limit strains gives the information if the sheet -metal forming process was designed properly.

show abstract

Evaluation of drawability of tailor-welded blanks made of titanium alloys Grade 2 || Grade 5

Cited by 18 publications

References 16 publications

Johnson–Cook Parameter Identification for Commercially Pure Titanium at Room Temperature under Quasi-Static Strain Rates

Johnson–Cook Parameter Identification for Commercially Pure Titanium at Room Temperature under Quasi-Static Strain Rates

Numerical simulation of forming titanium drawn part

Experimental And Theoretical Determination Of Forming Limit Curve

Contact Info

Product

Resources

About