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…
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…
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…
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…
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.…
Effect of skin-pass reduction in deep drawing operations Automotive Spain Challenge Skin-pass is essential to produce cold rolled steels to remove the yield point elongation and obtain the surface quality and flatness required by customers. In this last step of the manufacturing process of cold-rolled steels, final characteristics are defined with a maximum final reduction…
Cracks in AA5657H22 Packaging Spain Challenge Aludium supplies AA5657 alloy H2X temper for cosmetic packaging applications, slitted in narrow bands to feed customers deep drawing presses. They experienced that some slitted coils produce defective pieces. The small size of the samples is an obstacle to finding the defect cause and implementing corrective actions to reduce…
Edge-cracking in AA5754 H111 Automotive Spain Challenge Edge-cracking is a common issue in aluminium forming and the development of new alloys with a purer composition to improve edge cracking resistance is needed. A more recent version of AA 5754 alloy was produced at Aludium with purer chemical composition and a special manufacturing process to improve…
