The main goal of the study was to carry out the treatment of cyclic oxidation of Ti alloy (Ti-1Al-1Mn) in air atmosphere. Based on measurements of mass gain of titanium alloy samples (Ti-1Al-1Mn) the kinetic oxidation curves during cyclic annealing were determined. The oxidized surface of the titanium alloy was carefully observed with optical microscopy equipment and the geometrical development, shape and surface morphology were defined. The phase composition of the obtained oxide layers on the Ti-alloy with qualitative analysis of the X-ray were defined. Since titanium alloys are among the most widely used metallic materials in dental prosthetics the corrosion measurements in a solution simulating the environment of the oral cavity were carried out. The results confirmed that the used titanium alloy easily covered with oxides layers, which to some extent inhibit the processes of electrochemical corrosion in artificial saliva solution.Keywords: Ti-alloy, artificial saliva, kinetic of oxidation, dental alloy W pracy zaprezentowano wyniki badań nad kinetyką narastania warstw tlenkowych w efekcie cyklicznego termicznego utleniania stopu Ti-1Al-1Mn. Zabiegi utleniania przeprowadzono podczas sześciu 1-godzinnych cykli wygrzewania w atmosferze powietrza. Na podstawie pomiarów przyrostu masy próbek ze stopu tytanu (Ti-1Al-1Mn) wyznaczono krzywe kinetyki utleniania. W pracy przedstawiono również obserwacje mikroskopowe utlenionej powierzchni oraz na podstawie jakościowej analizy rentgenowskiej zidentyfikowano składniki strukturalne, będące produktem utleniania powierzchni. Z uwagi na fakt, że tytan i jego stopy są jednymi z najczęściej stosowanych w protetyce dentystycznej materiałami metalicznymi, przeprowadzono również testy korozyjne w środowisku imitującym warunki panujące w jamie ustnej człowieka. Wyniki potwierdziły, że tytan w podwyższonych temperaturach z łatwością pokrywa się warstwami tlenkowymi, które w pewnym zakresie hamują procesy korozyjne w roztworze sztucznej śliny.

Abstract. New display technologies will enable designers to use every surface as a support for interaction with information technology. In this article, we describe techniques and tools for enabling efficient man-machine interaction in computer augmented multi-surface environments. We focus on explicit interaction, in which the user decides when and where to interact with the system. We present three interaction techniques using simple actuators: fingers, a laser pointer, and a rectangular piece of cardboard. We describe a graphical control interface constructed from an automatically generated and maintained environment model. We implement both the automatic model acquisition and the interaction techniques using a Steerable Camera-Projector (SCP) system.

The paper presents the results of studies on the effect of nonuniform temperature distribution over the length of feedstock on the variation of longitudinal stresses in the rolling direction and band dimension change during the continuous rolling process. The studies were performed based on actual engineering data for a 160x160 mm square cross-section feedstock of steel S355J0. Numerical modelling of the rolling process was performed using Forge 2008®, a finite-element based computer program. Thermovision measurements and bars geometrical dimension changes were carried out in a domestic steelworks.

Point of view, preferences and priorities of quality inspection in modern production systems have changed. Quality inspection in its activities is no longer limited only to the documentation of the past, nor is it seen solely as a tool for the detection of nonconformity. Nowadays, the most important quality inspection function is prevention, whose most important goal is to make it before nonconformity. What is expected from modern quality inspection is that it actively improves the production and quality as well as reduces the costs. The aim of the article is to present requirements, guidelines and challenges in the organization of modern quality inspection in a manufacturing company. The role of quality inspection in the classical model and modern model of quality improvement was presented. Determinants of effective quality inspection were presented, as well. The quality inspection methods that best fit into the paradigm of modern quality inspection, that is source inspection, together with visual management were pointed out.