BACKGROUND Recent clinical studies have shown that recanalization rates are lower in stent-assisted coil embolization than in coiling alone in the treatment of cerebral aneurysms. OBJECTIVE This study aimed to assess and compare the hemodynamic effect of stent struts and straightening of vessels by stent placement on reducing flow velocity in sidewall aneurysms, with the goal of reducing reca...

Aiming at the low efficiency and unstable accuracy of current mold-pressing straightening for LSAW pipes, a three-roll continuous process is proposed in this study, which uses roller instead mold bending. According to novel technology, calculation model theoretical moment derived based on springback equation plane bending with small curvature, initial curvature established new deflection detect...

R. Kruzel, M. Suliga, Czestochowa University of Technology, Czestochowa, Poland Steel tire cord, springs and rope wires belong to the group of metal products from which the low residual stresses are required. In this paper the eff ect of multiple bending of wire on residual stresses of high carbon steel wires has been assessed. It was found that the application of the multi-roller straightening...

In industry, metal workpieces are often heat-treated to improve their mechanical properties, which leads unwanted deformations and changes in geometry. Due high hardness (60 HRC or more), conventional bending rolling straightening approaches not effective, as a failure of the material occurs. The aim research was develop predictive model that predicts change form hardened workpiece function arb...