Počet nalezených dokumentů: 1441
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Model of content technology education
Walat, Wojciech
2015 - anglický
Klíčová slova: modelování; technické vzdělávání; modelling; technology education Plné texty jsou dostupné v knihovně ZČU.
Model of content technology education

Walat, Wojciech
Západočeská univerzita v Plzni, 2015

Career education for visually impaired children at elementary school
Nazarova, L.
2015 - anglický
The writing focuses on visually impaired children’s school career education and discusses its importance. Its primary goal is to describe the essential elements of visually impaired children’s career education. Tema dannoj stat'i - trudovoe obučenye slabovidjašich detej v načal'noj škole. Osnovnaja cel' issledovanija zaključaetsja v opisanii metodov i elementov trudovogo obučenija detej s nazvannymi narušenijamy. Klíčová slova: kariérní vzdělávání; zrakově postiženéh děti; děti se zdravotním postižením; career education; visually impaired children; children with disabilities Plné texty jsou dostupné v digitálním repozitáři ZČU.
Career education for visually impaired children at elementary school

The writing focuses on visually impaired children’s school career education and discusses its importance. Its primary goal is to describe the essential elements of visually impaired children’s career ...

Nazarova, L.
Západočeská univerzita v Plzni, 2015

Motorcycle crash parameters and its influence on driver injuries
Bońkowski, Tomasz; Kottner, Robert; Hynčík, Luděk
2015 - anglický
Klíčová slova: nehodovost; motocykl; zranění; accident rate; motorcycle; injury Plné texty jsou dostupné v knihovně ZČU.
Motorcycle crash parameters and its influence on driver injuries

Bońkowski, Tomasz; Kottner, Robert; Hynčík, Luděk
Západočeská univerzita v Plzni, 2015

An approach to the machining of hard coatings prepared by laser cladding and thermal spraying
Carou, Diego; Řehoř, Jan; Vilček, Igor; Houdková-Šimůnková, Šárka
2015 - anglický
Thermal spraying and laser cladding are widely used in industry for different coating applications. The use of these techniques usually requires a finishing post-process. However, the characteristics of these coatings, such as their high hardness, make difficult to achieve satisfactory results with conventional machining processes. The present study provides a description of the main characteristics of the laser cladding and thermal spraying processes. For machining of these coatings, conventionally, grinding is the first option selected. However, modern industries require gaining flexibility and improving their productivity. Thus, other alternatives such as milling or turning need to be assessed. In this sense, in the last section, several experimental investigations on the machining of WC-Co and Stellite coatings are presented. These studies can bring some insights to face the machining of hard coatings prepared by the laser cladding and thermal spraying techniques. For instance, they can help in the selection of the cutting parameters and provide interesting results on the use of different tool materials and tool geometries. Klíčová slova: nátěry; laserové obložení; obrábění; žárové stříkání; WC-Co; coatings; laser cladding; machining; thermal spraying; WC-Co Plné texty jsou dostupné v digitálním repozitáři ZČU.
An approach to the machining of hard coatings prepared by laser cladding and thermal spraying

Thermal spraying and laser cladding are widely used in industry for different coating applications. The use of these techniques usually requires a finishing post-process. However, the characteristics ...

Carou, Diego; Řehoř, Jan; Vilček, Igor; Houdková-Šimůnková, Šárka
Západočeská univerzita v Plzni, 2015

The usage of laser machining for manufacturing of the cutting insert prototype
Necpal, Martin; Martinkovič, Maroš
2015 - anglický
In this paper a method for creating chip breaker on cutting insert is described. For cutter inserts the powder is compressed into the molds, in a process. After pressing and sintering the cutting tools chip breaker looks like negative molds shape. For experimental cutting insert prototype is important to design and make molds with specific shape. Designing and production of new molds is time and cost consuming. Another way is to make insert with flat rake face and make chip breaker by an advanced machining method. Hard carbide material may be machined by laser ablation. This paper deals with possibility of laser ablation machine LASERTEC 80 Shape usage for creating of comprehensive chip breaker surface on the carbide insert. Klíčová slova: laserové mikroobrábění; řezné nástroje; třísky; laser micromachining; cutting tools; chip breaker Plné texty jsou dostupné v digitálním repozitáři ZČU.
The usage of laser machining for manufacturing of the cutting insert prototype

In this paper a method for creating chip breaker on cutting insert is described. For cutter inserts the powder is compressed into the molds, in a process. After pressing and sintering the cutting ...

Necpal, Martin; Martinkovič, Maroš
Západočeská univerzita v Plzni, 2015

Design and development of measurement JIG system
Němec, Jiří
2015 - anglický
Following article describe design and production of the universal clamping jig for clamping measured parts in to three axis measuring machine. This clamping jig was designed and produced under exchange program Erasmus. Department Manufacturing Engineering Group (GEF) University of Vigo (Spain) and Department of Machining Technology (KTO) University of West Bohemia (Czech Republic) cooperated at this project. The clamping jig was created for extension possibilities of fixing of the measured parts in to work space of the meas-uring machine. Current state was insufficient. The worker of the department GEF specified requirements to the new clamping jig. The finally design of the clamping jig had to be universal and had to allow measuring parts in large series. Individual concepts were designed based on the specification and consultations with the project initiator. The optimal design was chosen from these concepts. The concepts are described in this article. Machines and tools, which are used for fabricating part of the jig, are described in the article. Results of the project are summa-rized in the conclusion. Klíčová slova: upínání; jig systém; 3D měřící stroj; výroba; clamping; jig system; 3D measuring machine; manufacturing Plné texty jsou dostupné v digitálním repozitáři ZČU.
Design and development of measurement JIG system

Following article describe design and production of the universal clamping jig for clamping measured parts in to three axis measuring machine. This clamping jig was designed and produced under ...

Němec, Jiří
Západočeská univerzita v Plzni, 2015

Possibilities of potentiometric methods of detection of cracks in forging tools at their renovation
Pilc, Jozef; Sajgalik, Michal; Struharnansky, Jozef; Rakoci, Jozef; Varga, Daniel
2015 - anglický
Industrial production, which uses the forging tools constantly increases the requirements for the consumption of forging tools and the need for fast and flexible renovations of them. Forging tools made from special tool steels are highly cost-intensive. The main cost component is the price of the material, heat treatment and other chemi-cal-heat treatment surfaces. This is the main reason why it is necessary to think about renovation at the design stage, in case of the need for repairs. Main weaknesses of the renovations is the insufficient ability of identifica-tion of the cracks spreading from the surface towards the core of the basic components. An important factor in the renovation process is the optimal choice of technology to restore the mechanical and physical properties of tools at an acceptable price, of course. The main issue in the choice of the optimal technology is heat treatment to achieve a high hardness and surface of the die, which is nitrided to ensure wear resistance. This article deals with the application of non-destructive potentiometric detection technology when considering the size of die forging cracks that arise in the process of forming. Klíčová slova: renovace nástroje na kování; potenciometrické metody; zjištění prasklin; forging tool renovation; potentiometric methods; crack detection Plné texty jsou dostupné v digitálním repozitáři ZČU.
Possibilities of potentiometric methods of detection of cracks in forging tools at their renovation

Industrial production, which uses the forging tools constantly increases the requirements for the consumption of forging tools and the need for fast and flexible renovations of them. Forging tools ...

Pilc, Jozef; Sajgalik, Michal; Struharnansky, Jozef; Rakoci, Jozef; Varga, Daniel
Západočeská univerzita v Plzni, 2015

Labor and profesional training of people with disabilities in the city of Vladimir Through the example of association of parents of disabled children "Light"
Constantinovna, Efimtseva Natalia
2015 - anglický
The article addresses experience in vocational training in the city of Vladimir. The principal directions, progress and results of training are laid out. The active work in labor training of people with disabilities by Vladimir nonprofit organization Association of Parents of Disabled Children “Light” has become material for this article. V stat'ye rassmatrivayetsja opyt raboty po obučenju professujam v g. Vladimire. Opisany osnovnyye napravlenja, chod i rezul'tat obučenja. Materialom dlya stat'i poslušila aktivnaya rabota VOOO ARDI «Svet» po trudovomu obučenju ljudej s ograničennymi vozmošnostjmi šuznedejatel'nosti. Klíčová slova: školení práce; Asociace rodičů zdravotně postižených dětí "Světlo"; odborné vzdělávání; postižený; vada komplexní struktury; labor training; Association of parents of disabled children “Light”; vocational training; disability; defect complex structure Plné texty jsou dostupné v digitálním repozitáři ZČU.
Labor and profesional training of people with disabilities in the city of Vladimir Through the example of association of parents of disabled children "Light"

The article addresses experience in vocational training in the city of Vladimir. The principal directions, progress and results of training are laid out. The active work in labor training of people ...

Constantinovna, Efimtseva Natalia
Západočeská univerzita v Plzni, 2015

Wear and durability milling tools depending on the CAM strategies
Pokorný, Peter; Zaujec, Rudolf
2015 - anglický
In this paper is presented research on the influence of CAM strategies for wear and durability shank of cutting tools. We used two machining strategies in this process, when the effective radius change and does not change. Material of tool was hard alloy and high speed steel for machining steel STN 19 520. Shape of cutting tool was Ball Nose end mill. For milling, DMU 85 monoBLOCK 5-axis CNC milling machine was used. The cutting tool wear was measured on Zoller Genius 3, universal measuring machine. The results show different cutting tool wear depending on the milling strategy and material of tool. Klíčová slova: opotřebení nástroje; efektivní poloměr; CAM; strategie; wear of tool; effective radius; CAM; strategy Plné texty jsou dostupné v digitálním repozitáři ZČU.
Wear and durability milling tools depending on the CAM strategies

In this paper is presented research on the influence of CAM strategies for wear and durability shank of cutting tools. We used two machining strategies in this process, when the effective radius ...

Pokorný, Peter; Zaujec, Rudolf
Západočeská univerzita v Plzni, 2015

Milling of nano-structured bio-materials for dental implants manufacturing
Stančeková, Dana; Šemcer, Ján; Martikáň, Anton; Rákoci, Jozef; Janota, Miroslav
2015 - anglický
Mechanical engineering is science discipline, which directly influence all industrial sectors. It is integral part of industrial evolution and is forced to constant advancing in knowledge level. Efficiency increase can be achieved by developing and applying new technologies and materials that ensure the required outputs. Side effect of efficiency increase is also production growth, that follows market needs, which are bounded up with final price of products. Such products are dental implants, which have to meet mechanical requirements and very important property - compatibility with organic materials. This group of biomaterials includes commercially pure titanium TiGr2, TiGr5, nano-structured commercially pure titanium n-Ti and coldformed titanium alloys TiNbTa. This article contains experiment results of milling these materials using different cutting parameters. Klíčová slova: nanostukturovaný titan; obrábění; biokompatibilní materiál; nano-structured titanium; machining; biocompatible material Plné texty jsou dostupné v digitálním repozitáři ZČU.
Milling of nano-structured bio-materials for dental implants manufacturing

Mechanical engineering is science discipline, which directly influence all industrial sectors. It is integral part of industrial evolution and is forced to constant advancing in knowledge level. ...

Stančeková, Dana; Šemcer, Ján; Martikáň, Anton; Rákoci, Jozef; Janota, Miroslav
Západočeská univerzita v Plzni, 2015

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