Results 31 to 40 of about 3,949 (176)

On the Use of Advanced Friction Models for the Simulation of an Industrial Stamping Process including the Analysis of Material and Lubricant Fluctuations

Lubricants, 2023
The use of numerical simulations for tool tryout and process control is becoming increasingly prevalent. In this work, the deep drawing process of a car inner door panel of DC06 mild steel is numerically analyzed and compared with industrial process ...
Laura Muñiz, Javier Trinidad, Eduardo Garcia, Ivan Peinado, Nicolas Montes, Lander Galdos   +5 more
doaj   +1 more source

Modeling of the minimum variable blank holder force based on forming limit diagram (FLD) in deep drawing process

IOP Conference Series: Materials Science and Engineering, 2017
This paper presents the mathematical approach of minimum blank holder force to prevent wrinkling in deep drawing process of the cylindrical cup. Based on the maximum of minor-major strain ratio, the slab method was applied to determine the modeling of minimum variable blank holder force (VBHF) and it compared to FE simulation. The Tin steel sheet of T4-
S Candra, I M L Batan, W Berata, A S Pramono   +3 more
openaire   +1 more source

A Triaxial Failure Diagram to predict the forming limit of 3D sheet metal parts subjected to multiaxial stresses [PDF]

, 2016
Accurate prediction of failure and forming limits is essential when modelling sheet metal forming processes. Since traditional Forming Limit Curves (FLCs) are not valid for materials subjected to triaxial loading, a new failure criterion is proposed in ...
Forgas, Albert, Oñate Ibáñez de Navarra, Eugenio, Rastellini, Fernando G., Socorro Miranda, Gerardo   +3 more
core   +1 more source

The effect of temperature on the mechanical properties and forming limit diagram of aluminum strips fabricated by accumulative roll bonding process

Journal of Materials Research and Technology, 2020
Accumulative Roll Bonding (ARB) process is a new, low-cost, and applied method for obtaining nano/ultrafine-grained materials along with improvements in mechanical properties.
M. Delshad Gholami, R. Hashemi, M. Sedighi   +2 more
doaj   +1 more source

Experimental and Numerical Investigations of Deep Drawability of AA1200 [PDF]

, 2016
The ability of a sheet metal to be formed in a given process without failure is known as formability. Formability is a measure of the amount of deformation a material can withstand prior to fracture or excessive thinning. Forming Limit Diagram (FLD) is a
Ahlawat, A. (Amit), Gautam, M. V. (Mr), Jain, S. (Sumit), Kumar, M. (Manoj)   +3 more
core  

The development of stress based continuum damage mechanics model for predicting the formability of Magnesium alloys under cold/warm stamping processes [PDF]

, 2016
This paper presents the development and application of the novel 2D-stress based continuum damage mechanics (CDM) model for prediction of the formability of magnesium alloys under cold/warm stamping conditions.
Blackwell, P., Mohamed, M.S.
core  

Development of an in-plane biaxial test for forming limit curve (FLC) characterization of metallic sheets

, 2010
International audienceThe main objective of this work is to propose a new experimental device able to give for a single specimen a good prediction of rheological parameters and formability under static and dynamic conditions (for intermediate strain ...
Guines, Dominique, Leotoing, Lionel, Ragneau, Eric, Zidane, Ibrahim   +3 more
core   +4 more sources

Effects of layer arrangement, pin size, polyurethane thickness, and polyurethane hardness on forming limits of Al/Cu bimetallic sheets through multi-point forming process

Journal of Materials Research and Technology
This study experimentally evaluated the forming limit diagram (FLD) of Al/Cu bimetallic sheets fabricated using explosive welding in multi-point forming.
Milad Aali Majidabad, Ramin Hashemi, Habibolah Akbari   +2 more
doaj   +1 more source

Simultaneous Optimization of Variable Blank Holder Force Trajectory and Tools Motion in Deep Drawing via Sequential Approximate Optimization

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
In this paper, variable blank holder force (VBHF) trajectory and tools motion are optimized simultaneous by a sequential approximate optimization (SAO) with radial basis function (RBF) network.
Jirasak SRIRAT, Satoshi KITAYAMA, Koetsu YAMAZAKI   +2 more
doaj   +1 more source

Determination of instability of a DP 980 steel sheet under different stress states based on experiment and theoretical models

MATEC Web of Conferences, 2016
It is generally accepted that the formability of sheet metal is limited by the onset of instability which can be described by forming limit diagram (FLD) in ε1-ε2 space.
Song Hong-Wu, Sun Dong-Zhi, Andrieux Florence, Zhang Shi-Hong   +3 more
doaj   +1 more source