The aim of this work is to obtain completely new technology of surface treatment. Studies and research in the area of deposition showed that lubricant composite coatings based on zinc with PTFE (polytetrafluoroethylene) particles offer unexpected possibilities of electrodeposition and innovative approach to surface protection. Integral part of this research is a characterisation of applied coatings (…)
This research report deals with analysis of large shape-difficulty casting of stamping die for automotive industry – made from materials steel, grey iron and ductile iron. The main goal of this research is to choose a material for any type of stamping die. Second goal is to find problematic areas in the casting design and to change the stamping die design and to recommend optimal technology for cas (…)
Presented paper deals with problems of discrete simulation within acid pickling lines. These types of lines are complicated mechanical systems required special algorithm for controlling. The paper discussed using of simulation approach both for projecting and controlling of acid pickling lines. Several experiments with the simulation model were performed to verify the production system design. In t (…)
Commonly applied theories of self-excited vibrations in machine tools are prevailingly based on frequency domain analysis of linear models, and in most cases only focus on evaluation of stability limits of strictly linear systems. In this way the behaviour of more stable or more unstable systems cannot be studied and analyzed. Neither is it possible to study certain important nonlinear effects beca (…)
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