Most mechanical CAD systems use line and circle(ruler and compass) as basic drawing tools. In this paper we introduce a class of new drawing tools: the conic. We proved that the class of diagrams within the drawing scope of this new tool is larger than that can be drawn with line and circle. Actually, we proved that a diagram can be drawn with conic if and only if this diagram can be described ...

Regenerated silk fibroin has been proposed as a material substrate for biomedical, optical, and electronic applications. Preparation of the silk fibroin solution requires extraction (degumming) to remove contaminants, but results in the degradation of the fibroin protein. Here, a mechanism of fibroin degradation is proposed and the molecular weight and polydispersity is characterized as a funct...

*Corr. Author’s Address: Gorenje Orodjarna d.o.o., Partizanska 12, SI-3503 Velenje, Slovenia, [email protected] 697 Application of Numerical Simulations in the Deep-Drawing Process and the Holding System with Segments’ Inserts Volk, M. – Nardin, B. – Dolšak, B. Mihael Volk1,* – Blaž Nardin1 – Bojan Dolšak2 1 Gorenje Orodjarna d.o.o., Slovenia 2 University of Maribor, Faculty of Mechanical En...

The present study investigates the mechanical behavior of severely plastic-deformed Cu-Al composite wires with different diameters and heat-treatments. Each holds 61 restacked copper-clad aluminum wires. bimetal composites were cold-worked up to ranging from 1 mm 3 mm, without any intermediate heat treatment. All contain hexagonal fibers a continuous copper network extended outer surface into c...