Currently, many automotive companies struggle with expensive product recalls. To overcome these issues the need for quality management increases. Hence, we propose a monitoring and control framework for Lost Foam Casting (LFC) manufacturing processes using Electrical Capacitance Tomography (ECT) and an evolutionary Genetic Programming (GP) based system. The multi-tier framework simulates the pr...

In this paper, model based control of solidification is studied. A one-dimensional model that describes the dynamic response of the solidification rate for a pure substance is developed. The solidification of a metal column is controlled in order to solidify at a desired rate. The manipulated variable is the power to the heater at the top of the casting. A linear PI-controller is implemented an...

In current paper we demonstrate the applicability of high viscous oligomeric alkoxide concentrates in fabrication of technologically interesting structures like nanometer diameter fibers (down to 200 nm), nanoneedles (tip radii 15-25 nm) and some micrometers wide linear surface structures. The approach is cost-effective and simple as it utilizes low-cost precursor materials (metal alkoxides) co...

This paper presents the aplication of a feature-based design features within simulation model development procedure. Based on a review of the feature technology and previous research work, paper focuses on the modeling of intricate relations among features of different design aspects. The authors propose a set of CAD-CAE features that are oriented to both the design and analysis processes. This...

The purpose of this study was to determine the galvanic interaction between pure titanium, a CoCrMo alloy, as well as their galvanic interaction with a high copper and a conventional amalgam at different area ratios. Pure titanium, a CoCrMo alloy and two dental amalgams with different copper compositions were tested in this study in 0.9% NaCl environment of pH 7. Polarization curves were record...

I. Matin, M. Hadžistević, Đ. Vukelić, I, Faculty of Technical Sciences, University of Novi Sad, Serbia. B. Trifković, Clinic for Prosthodontics, School for Dentistry, University of Belgrade, Serbia, M. Potran, Medical Faculty, University of Novi Sad, Serbia, T. Brajlih, I. Drstvenšek, Faculty of Mechanical Engineering, University of Maribor, Slovenia. The paper presents some aspects of the nove...

Al7075 alloy reinforced with h-Boron Nitrate (BN) composites were processed by stir casting technique. The produced composite was subjected to microstructural studies using OLYMPUS -BX51M, tensile, hardness, density and wear tests. Tensile strength and hardness were found to increase by 12.8% and 20% respectively due to increased dislocation density with the addition of reinforcement. Microstru...

The phenomenon of impingement and solidification of a molten metal droplet on a substrate occurs in processes like thermal spray coating and spray casting. Molten metal droplet after impingement over a substrate becomes a splat after spreading and solidification. The phenomenon of spreading and solidification of a droplet can be understood by mathematical modeling. In the present work, the spre...

Many graphical objects can be represented by swept volumes (including its subset – generalised cylinders) by sweeping 2D or 3D templates along 3D trajectories. In this paper, we present a new approach for constructing swept volumes using image templates. We utilise scalar fields as our underlying data type, and employ volume ray casting techniques for rendering swept volumes in their original s...