Wire Arc Directed Energy Deposition (WA-DED) also known as Additive Manufacture (WAAM) is a niche additive manufacturing technique for metals that increasingly offering competitive advantage to traditional forging and casting methods. Characteristics of WA-DED are high deposition rates feedstock inexpensive compared powder processes, making it highly efficient manufacture large components. This...

The present study was carried out to investigate the effect of alloying elements and thermo-mechanical treatment (TMT) i.e. hot rolling and forging with different reduction ratios on the hardness (HV) and impact toughness (J) of heat-treated low alloy steels. An understanding of the combined effect of TMT and alloying elements and by measuring hardness, impact toughness, resulting from differen...

D. Arsić, V. Lazić, R. Nikolić, S. Aleksandrović, M. Djordjević, Faculty of Engineering Sciences, University of Kragujevac, Serbia, A. Sedmak, Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia, R. Nikolić, Research Center, University of Žilina, Žilina, Slovakia, R. Bakić, Tutin High School, Serbia In exploitation, the forging dies are exposed to heating up to very high...

atrial septal defect (asd) is a common congenital anomaly that has low surgical mortality and morbidity. we report a very rare case of a low-lying asd, combined with the drainage of the inferior vena cava and the left superior vena cava into the left atrium. this combination was associated with an unroofed coronary sinus. we also describe an iatrogenic surgical diversion of the inferior vena ca...

The article concern the influences of the novel flash structure with resistance wall on the forming load and die wear during the closed-die forging process. If the geometrical parameters of the resistance wall are not properly designed, the forming load and die wear may be great; this can affect the life of the forging die. Yet, no procedure is known to optimize and decide this flash structure ...