Reversible hot /cold rolling Experimental reversible rolling mill can deliver up to 6 000 kN of rolling force and 200 kNm of torque. It provides sufficient power to handle alloys with a high deformation resistance like nickel-base superalloys or maraging steels, both at the elevated or the room temperature. The rolling mill can accommodate either two-high,…
View details Hot sheet metal forming pilot environment Hot/warm forming trials on pilot plant, using user-provided test dies or our own omega shape, with the aim of demonstrating new processes, generating test samples, trials on lubricants, coatings or material. Typical service results include a pilot demonstration of a sheet metal forming process, process window study, lubricant trials,…
View details Material data for modelling Fracture locus evaluation Fracture locus is the ductile failure criterion, which expresses the material behaviour under the wide range of different triaxiality states. Therefore, set of different specimen’s geometries are tested. Based on the results, fracture locus can be expressed as a triaxiality-equivalent plastic strain dependency (2D), or triaxiality-equivalent plastic strain-Lode…
View details Crashworthiness modelling The numerical simulations are used to evaluate stress and strain distribution and crack initialization and propagation. The simulations are performed using ABAQUS or Autoform software. The data generated by tensile tests under dynamic conditions and at different temperatures are used as input data. The drop weight tower testing is used for verification of…
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Crashworthiness Dynamic Component Test The crash behaviour of components can be evaluated by two different tests: dynamic 3-point bending tests on omega profiles and dynamic compression tests on box beams. Dynamic 3-point bending tests are performed on an improved setup of Drop Weight Tower with two high speed cameras (assisted by DIC analysis), application of…
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Reduction of cracking on parts during forming Automotive Spain Challenge The company aimed to reduce thermal and acoustic insulation parts’ cracking during forming, a common issue for part makers that can be originated by multiple causes. Estamp wanted to understand if the crack problems were originated because of the formability of the materials and figure…
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Hydrogen monitoring in transport Body in White Automotive Italy Challenge High strength steels with high amount of martensite such as the Usibor2000®, are susceptible to hydrogen absorption during processing leading to the risk of delayed cracking phenomena. CRF wanted to assess the use of this material for automotive applications. To do that, hydrogen content on…
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Edge-cracking prediction of the upper part of a B pillar component Automotive Italy Challenge Edge-cracking is one of the drawbacks of the automotive industry, a phenomenon including cut-outs in automotive inner panels, hub-holes, or hidden joints. It compromises part quality because it cannot be predicted from the part design stage and cracks could appear in…
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Metal characterisation tests to optimise a drum wrapper joint Home appliances Turkey Challenge Clinching is the cold joining process in which sheet metals are connected by force and positive locking with each other in washing machine drum production. The geometry of dies is one of the critical parameters in this kind of cold joining process…
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C45 steel grades behavioural prediction in fineblanking operations Automotive Spain Challenge Conventional microstructural and mechanical characterisation tests were unable to provide a complete understanding of the performance of cold rolled steels in fine cutting operations. Arania needed to assess accurately the behaviour of the C45 steel grade for fine blanking operations to improve their manufacturing.…
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