there are many parameters that affect the sheet hydroforming process such as fluid pressure, material properties, interfacial friction between blank and tool surfaces, etc. in this paper, a fem-based taguchi method is used to determine the effects of forming parameters on the quality of part formability in the process of hydrodynamic deep drawing assisted by radial pressure. four important form...

the forming limit diagram (fld) is a useful method for characterizing the formability of sheet metals. in this paper, different numerical models were used to investigate the fld of tailor welded blank (twb). twbs were co2 laser-welded samples of interstitial-free (if) steel sheets with different thicknesses. the results of the numerical models were compared with the experimental fld as well as ...

Abstract Precipitation-hardened aluminium alloys typically obtain their strength by forming second-phase particles, which, however, often have a negative effect on formability. To enable both lightweight construction and of complex parts such as body panels, high formability are required simultaneously. Cluster hardening is promising approach to achieve this. Here, we show that short thermal sp...

In recent years many different ways have been investigated by steel producers to increase ductility, impact strength and formability of steels. More important ways are steels with very low amounts of inclusion, small size inclusions and modified inclusions. In this study, experiments have been performed on the API-X42 steel produced by the electric arc furnace in Mobarekeh Steel Co. After the p...

The aluminum alloys EN AW-6082 and -7075 possess a high specific strength are therefore predestined lightweight materials. In the high-strength T6 state, however, they exhibit low cold formability pronounced springback. For this reason, temperature-supported process routes such as warm or hot forming currently used to form these alloys. Cold of preconditioned semi-finished products in W-Temper ...

Abstract Advanced high-strength steels (AHSS) have shown profound progress in improving tensile ductility or global formality the last decades over three generations. For a complete assessment of both and local formability, this study aims to characterize compare edge fracture behavior first third-generation AHSS (dual-phase steel quenching & partitioning steel) with same nominal strength l...

An AZ41 magnesium alloy in the hot-rolled condition without further thermomechanical processing to modify its microstructure was investigated establish suitability for use within a superplastic forming process and optimum parameters. Formability assessed using elevated temperature tensile testing hot gas bulging, across range of strain rates (1×10?1?1×10?3 s?1) temperatures (350?450 °C). Circle...