The study addresses the effect of magnesium and other alloying elements on rolling “?-fiber” texture formation during hot deformation aluminum alloys. For study, flat cast ingots from three alloys with variable content were deformed in a Gleeble testing unit different parameters thermomechanical treatment. Immediately after completion deformation, samples quenched using an automatic cooling sys...

Ultraprecision textured surfaces with functional requirements are extensively used in engineering, optics, biomedical and microelectronic products. This work investigates backside patterning of micro-scale textures with nanometer surface finish on flat surfaces. In this technique a pre-fabricated macro-scale backside pattern was machined as a first step, and thereafter the front side of the wor...

Cold-rolled sheet metal that is often used in laser forming exhibits anisotropic properties, which are mostly caused by preferred orientations of grains developed during the severe plastic deformation such as cold rolling. In the present study, the textures of cold-rolled mild steel sheets are characterized and the influence of the plastic anisotropy on laser forming process is investigated. De...

A ne Invariant Deformation Curves A Tool for Shape Characterization Rein van den Boomgaard Dept. of Computer Science University of Amsterdam The Netherlands In this paper we describe a combination of two well-known concepts: morphological deformation curves and a ne invariant evolution processes. A morphological deformation curve is a shape descriptor obtained by continuously deforming the shap...