Pitting corrosion has a major influence on aging of structural elements made of high-strength aluminium alloys as corrosion pits lead to earlier fatigue crack initiation under tensile dynamic loading. The objective of the present study was to investigate the effect of surface hardening by shot peening on electrochemical stability and corrosion fatigue properties of high-strength aluminium alloy 7075-T651 in the corrosive environment of a chloride solution. The results obtained show a favorable influence of shot-peening treatment on corrosion fatigue properties.
COBISS.SI-ID: 11419675
For quality control in high volume manufacturing of thin layers and for tracking of physical and chemical processes, ellipsometry is a common measurement technology. For such kinds of applications a novel approach of fast ellipsometric measurements is presented. We use a 92 kHz Single Crystal Photo-Elastic Modulator (SCPEM), which is a LiTaO3 crystal with a size of 28 × 9 × 4 mm. This small, simple, and cost-effective solution also offers the advantage of direct control of the retardation via the current amplitude, which is important for repeatability of the measurements.
COBISS.SI-ID: 11554331
The paper presents savings in time and costs achieved by a transition from sequential to simultaneous product realisation. Such a transition is not possible without prior well-organised teamwork or virtual teamwork. The article demonstrates the team structure in simultaneous product realisation. A two-level team structure is suitable for small companies, with a core team on the first level and several project teams in simultaneous product realisation loops on the second level.
COBISS.SI-ID: 11663899
The process of soft boiling of eggs and pasteurization demands a very precise temperature control. The control is difficult to implement because different actuators are used to implement heating and cooling. In this paper a fuzzy logic based solution is presented.
COBISS.SI-ID: 11219739
Simulation of a throughfeed centreless grinding process in a virtual environment (VE) is presented. The developed simulations are based on an analytical grinding gap model describing the grinding gap macro geometry and workpiece kinematics. The model is embedded in a desktop application (Cegris), which facilitates regulating wheel truing and the determination of set-up variables. The Cegris is ported to a CAVE (CAVE Automatic Virtual Environment) for an interactive visualisation of the process.
COBISS.SI-ID: 11158043