The continuous roll casting process (CRC), consisting of continuous strip casting between rolls, is now well known. It was introduced by the SCAL Company (Pechiney Ugine Kuhlmann Group) 60 years ago 1 . The process consists of solidifying aluminum or aluminum alloys between the water-cooled rolls of a duo rolling mill. From the moment when solidification is completed to the moment when the stri...

Mikro Systems Inc. (MSI) has developed a high volume manufacturing process for producing complex, netshape, micro-to-meso scale structures from advanced materials comprised of powdered metals, ceramics, and polymers. This process, called Tomo-Lithographic-Molding (TLMTM), hinges upon a high-resolution master tool composed from lithographically micro-machined layers, precisely aligned and stack ...

One of the best choices for fast, high quality shadows is the shadow volume algorithm. However, for real time applications the extraction of silhouette edges can significantly burden the CPU, especially with highly tessellated input geometry or when complex geometry shaders are applied. In this paper we show how this last, expensive part of the shadow volume method can be implemented on program...

This paper presents a flexible hybrid method designed to render heightfield data, such as terrains, on GPU. It combines two traditional techniques, namely mesh-based rendering and per-pixel raycasting. A heuristic is proposed to dynamically choose between these two techniques. To balance rendering performance against quality, an adaptive mechanism is introduced that depends on viewing condition...

In the paper the analysis of wax pattern and casting dimensions changes during each stages of investment casting technology process has been presented. Results of wax patterns and castings of test plate free and restrained contractions dimensions changes research carried out in Department of Foundry Engineering at Brno University of Technology have been presented as well. Moreover obtained resu...

Unfortunately, many things can go wrong. In the United States voters are often confronted with bewildering numbers of issues to decide. Ballot choices and designs vary from election to election and from district to district—or even within a district. People may have trouble casting the votes they intend. Both machine and human issues affect how votes are recorded and counted. Especially in a cl...

During air–slip direct chill casting of aluminum alloys, uneven or low air pressure areas at the surface of the porous graphite ring mold, can cause the metal to stick to the graphite ring and produce traces along the billets called vertical drags (VD). To prevent this type of defect, it would be an advantage to decrease the wettability of the graphite ring. It has been shown that nanostructure...

The classical casting material cast iron is experiencing a renaissance. High strength CGI or alloyed cast iron components are substituting previously used non-ferrous castings in automotive power train applications. The mechanical engineering industry has recognized the value in substituting forged or welded structures with stiff and light-weight cast iron castings. New products such as wind tu...

During the solidification, and then cooling, generally a shrinkage gap or mechanical interaction (grip or slip) can occur between the casting and the mold. The character of interaction is decided by the shape of casting. Both these phenomena occur in most real castings. Shrinkage gap, and specifically its width, determines the heat flow between cast and mold, while the mechanical interactions l...