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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 82
Khalaj, Omid , Saebnoori, Ehsan , Jirková, Hana , Chocholatý, Ondřej , Svoboda, Jiří
Corrosion Behavior and Mechanical Properties of New Developed Oxide Precipitation Hardened Steels

The Oxide Precipitation Hardened (OPH) steel is a new developed group of materials from Oxide Dispersion Strengthened (ODS) alloys which are well known advanced materials for high temperature properties. Besides, the corrosion resistance of these types of material is so important regarding&#...

Marková, Věra , Kubátová, Dana
Design of Experiment for Monitoring Influence of Selected Factors on the Core Roughness Depth

The paper describes application of the Design of Experiment in area of surface quality. Two factors in more levels (type of software filter and type of standard) and their influence on the response value (the core roughness depth) were watched. The aim of the experiment w...

Jirková, Hana , Vrtáček, Jiří , Peković, Michal , Jeníček, Štěpán , Stehlík, Adam , Burdová, Karolína
Influence of holding time in the die on structure development of the low-alloyed TRIP steels

Press-hardening is a modern forming technology for the production of shaped sheet parts. Its use has been growing in recent years because of high production accuracy, lower spring back effect and lower forming forces. This technology is also suitable for high strength TRIP steels&#...

Marek, Patrice , Marková, Věra
Optimization and Testing of Money Flow Index

The paper deals with whether the Money Flow Index (MFI) can still be used successfully for trading, and whether the parameters recommended in the literature are the best that an investor can use. Simulations in randomized time interval for the largest companies in the S&P&...

Khalaj, Omid , Jirková, Hana , Opatová, Kateřina , Svoboda, Jiří
Microstructural and Hardness Evolution of New Developed OPH Steels

Valíček, Jan , Řehoř, Jan , Harničárová, Marta , Gombár, Miroslav , Kušnerová, Milena , Fulemová, Jaroslava , Vagaská, Alena
Investigation of Surface Roughness and Predictive Modelling of Machining Stellite 6

Hořejší, Petr , Vyšata, Jiří , Rohlíková, Lucie , Polcar, Jiří , Gregor, Michal
Serious games in mechanical engineering education

Chval, Zdeněk , Ráž, Karel , Čechura, Milan
Temperature monitoring during forging process

This article deals with the measurement of the thermal behaviour of the mechanical forging press. The forging process is causing thermal changes. The temperature of the forged part can reach 1100 – 1200 °C during the hot forging. Heat transfer is causing thermal deformations o...

Kaufnerová, Aneta , Kutlwašer, Jan
Measuring stability of the cutting process when turning using TXF Metalmax software

This paper deals with measuring thestability of the cutting process, namely for turning. Kistlermeasuring technology isused to measure stability and the results are evaluated using the TXF program from Metalmax. Part of the article is the introduction of the TXF program and description&...

Skřivanová, Nikola , Melichar, Martin
The comparison of destructive and non-destructive forms of measurement in the automotive industry

The article focuses on the comparison of advantages and disadvantages of destructive and non-destructive forms of measurement in the automotive industry. X-ray, CT control system - Y. Cougar SMT has been used during the experiment, which allows non-destructive measurement and CMM - Vert...

Marek, Václav
Topology optimization of horizontal crossbeam of portal milling machine

Displacements caused by cutting forces, gravity or mass inertia influent the overall precision and productivity of milling machines. Economic pressure leads to cost reduction of milling centers. Reduction of weights should decrease prime-material costs of milling center. However, non-conception materi...

Polák, Roman , Ráž, Karel , Vaněk, Václav
Determination of the Measurement Deviation

This article deals with the determination of deviations measurement in mechanical testing laboratories. The main problem is in calculation of these measurement deviations in acceptable time and creation of the record of this process. Most measurements contain multiple deviations, which are a...

Zahálka, Martin , Ráž, Karel
Completing and refining of the material library for forming simulations

The paper deals with the software DEFORM, which is used for forming simulations at the Regional Technological Institute in University of West Bohemia in Pilsen, and with the issue of acquisition and validation of material data. Material library is an essential part of a softwa...

Kubátová, Dana , Melichar, Martin
Influence of the number of points on the evaluated element when measuring on CMM

Coordinate measuring machines (CMM) have been a major advance in the field of engineering measurement in recent decades. They were constructed based on the need to measure complex shaped parts in the automotive and aerospace industries. The rapid development of CMM is based on ...

Nozar, Martin , Pokorná, Václava , Zetková, Ivana
Potential health hazards of additive manufacturing

In recent years, additive manufacturing has begun to penetrate not only into a number of industrial enterprises, but also into households. 3D printers are becoming more affordable and appear on the market in a variety of designs that use a variety of principles and feedstock&#...

Kalina, Tomáš , Kemka, Vladislav , Chval, Zdeněk
Parameterized subsystems of HVAC piping system

The goal of this paper is to introduce the proposed parameterized sub-systems of HVAC piping system (HVAC = heating, ventilation, air conditioning). Parameterized 3D models of piping sub-systems and supports of piping system were created. Using control parameters we can control not only...

Habrman, Martin
Influence of the Infill on the Tensile Strength and the Economic Factors of 3D Printing

This work deals with the infill of 3D printed parts. The goal of this work is to provide recommendations on how much a part should be filled. The recommendation is supported by experiment. The selected load is tensile. Therefore, the geometry of the samples was based ...

Jeníček, Štěpán , Kotěšovec, Vratislav , Peković, Michal , Zetková, Ivana
Analysis of the possibilities of waterjet cutting technology for the production of samples for thermomechanical tests

This study examines the options available in the unconventional process of abrasive waterjet cutting for making thermomechanical test samples. A series of experiments was carried out to identify the impact of individual cut-ting parameters on machined surface integrity. When using abrasive w...

null, null , Tančin, Milan
Substituting a conventional ram frame with a variants of sandwich structure

The main goal is to determine if a sandwich structure (with steel sheets as outer plates and aluminium foam as filler) is suitable for a ram in an overhead gantry. The main expected features of the new design are fewer deformations, lower weight and equal or higher&#...

Vychytil, J. , Špirk, S.
Numerical analysis of a passenger safety during a railway vehicle collision: The effect of safety belts

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 82