Hossein Karbasian's research while affiliated with Technische Universität Dortmund and other places
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Publications (5)
The production of high strength steel components with desired properties by hot stamping (also called press hardening) requires a profound knowledge and control of the forming procedures. In this way, the final part properties become predictable and adjustable on the basis of the different process parameters and their interaction. In addition to pa...
This paper presents a sectionwise hydroforming technique for manufacturing of large-area multi-cell sheet metal structures in terms of hump plates. The sectionwise hydroforming technique allows production of hump sheets with variable width and length. The hump plates are based on hexagonal hump geometry. The hump height is optimized for the applica...
This paper presents a Finite Element Simulation of hot stamping processes by means of experimentally calculated material and process data for the process design. The quality and the significance of the simulation results are strongly dependent on the accuracy of the thermal and mechanical parameters used in FE models. Therefore, the process and mat...
At present, hot stamping represents an innovative manufacturing process for forming of high strength steels, implying a sheet
at austenite temperature being rapidly cooled down and formed into a die at the same time (quenching). This forming process
is used for the manufacturing of automobile structural components with a strength of up to 1,500 MPa...
At present, hot stamping represents an innovative manufacturing process for forming high strength steels, implying a sheet at austenite temperature being rapidly cooled down and formed into a die at the same time (quenching). This forming process is used for the manufacturing of automobile structural components with a strength of up to 1500 MPa, th...
Citations
... This feature within LS-DYNA allows to combine the advantages of each integration rule and, at the same time, overcome contact solution stability and thermal convergence. The tools can be modeled as rigid bodies with thermal behavior (Karbasian et al., 2008a,b). The prediction of the temperature distribution in the blank and the tools plays a very important role in this process. ...
Reference: A review on hot stamping
![[object Object]](https://i1.rgstatic.net/ii/profile.image/654829361840132-1533134894765_Q64/Alexander-Brosius-2.jpg)
... Then, alternately, solving the thermal problem in turn updates the mechanical properties. This solving strategy has already been used in [10,11] and is here implemented in an explicit finite element research software for composite shaping. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/273611105763343-1442245379900_Q64/Matthias-Kleiner.jpg)
... Friction problems in hot forming tools can be overcome by surface treatments and deposition of advanced coatings [8,9]. At this point, the localised heat input and the rapid solidification of materials inherent to laser processing, place laser-directed energy deposition (L-DED) in an advantageous position compared to traditional coating technologies [10]. ...
