Relevant bibliographies by topics / Střižník

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Střižník'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Střižník"

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Králík, Miroslav, Stanislav Katina, and Petra Urbanová. "Distal Part of the Human Hand: Study of Form Variability and Sexual Dimorphism Using Geometric Morphometrics." Anthropologia integra 5, no. 2 (June 1, 2014): 7–25. http://dx.doi.org/10.5817/ai2014-2-7.

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Tradičně se lidská ruka studuje prostřednictvím měření a srovnávání jednotlivých segmentů (prstů, článků prstů, záprstních kostí) bez zohlednění jejich vzájemných prostorových souvislostí. Cílem této studie je výzkum vnitro-populační variability formy lidské ruky jako celku v oblasti tříčlánkových prstů se zvláštním zaměřením na sexuální dimorfismus a vztah mezi velikostí a tvarem ruky. Pravé ruce 99 žen a 70 mužů, převážně vysokoškolských studentů, byly ve standardizované poloze z palmární strany zaznamenány běžným stolním skenerem. Na každém dvourozměrném snímku bylo umístěno 16 význačných bodů a byla studována variabilita mezi těmito konfiguracemi prostřednictvím metod geometrické morfometrie. Pro lepší pochopení vnitřních vzorců variability tvaru byl tvarový prostor rozložen na afinní a neafinní podprostor, které byly dále analyzovány samostatně. Převážná část celkové variability byla spojena s afinními tvarovými rozdíly, které jsou identické v celé studované oblasti ruky. Jejich větší část představovala střižnou změnu v proximodistálním směru, menší část pak napínání odpovídající změnám v šířce ruky. Toto napínání také silně korelovalo s velikostí ruky. Mezipohlavní rozdíly představovala afinní změna, ve které byla proximodistální střižná změna neoddělitelně spojena se změnami v relativní šířce ruky. Lokální neafinní pohlavní rozdíly byly zaznamenány v určitých článcích prstů a mohou souviset s rozdíly v poměrech délek prstů. Domníváme se, že oddělení globálních a lokálních sexuálně dimorfních znaků ruky může pomoci blíže ozřejmit původ/počátek jejich dimorfismu v rané ontogenezi – čím lokálnější znak, tím později se v ontogenezi zakládá. Dimorfní znaky lokální a globální by proto mohly být ovlivněny odlišnými ontogenetickými faktory.
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Dissertations / Theses on the topic "Střižník"

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Drápala, Miroslav. "Výroba výztuže dveřního zamykání sdruženým nástrojem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231254.

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The submitted project was created in the engineering studies of M-STG Machinery technologies and it is focused on problematics of production of reinforcement door locking. Component will be manufactured by cutting and bending technologies and used material is aluminium alloy EN AW-3103. As a manufacturing stock is used roll of sheet. Manufacturing series is 400 000 pieces a year. Literary study was created according to the mentioned technologies. After the control calculation was proccesed, the compound tool was designed. As a working machine was selected accentric press SMERAL LE 250/40, where the compound tool will be clamped.
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Brdečková, Zuzana. "Technologie zhotovování drážek do pláště kotvy." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231214.

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The aim of the thesis is the design of the production process and tools for production of two grooves in coats of concrete clamp. Shell anchors are made of longitudinally welded stainless steel tubes 17 240. The size of the production of all types of shell of concrete clamps is 18 000 PCs per year. The number and the dimensions of grooves in the coats of anchors were determined on the basis of a practical verification. To the present day the grooves are made by cutting on a band saw, which is little productive and on finishing operations demanding way. The grooves in the coats of anchors will be newly manufactured by technology of shearing, which was a literary study. On the basis of the calculations was selected for the production a hydraulic press of CUPS 25 D. The grooves will be produced on the newly designed shearing tool. Work is carried out by technical-economic evaluation, which compares the current technology of production with the newly proposed technology. Part of the thesis is drawing documentation of coats of concrete clamps of all dimensions and drawing documentation of shearing tool.
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Lata, Miroslav. "Výroba součásti technologií přesného stříhání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229087.

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The diploma thesis deals with a propose of a new manufacturing technology of component called „KULISA“ drawing number 4-DP-05-10/01. The beginning of this work is prepared as a literary study about blanking. There are explained some basic concepts necessary to introduce a blanking topic. Other interest of this work is an assessment of actual state of conventional blanking technology which is being currently used for component production. With regard to the deficiencies of the existing method is proposed new technology of fine blanking. In the proposal is evaluated technological site of component construction and blanking tools are proposed with stress analysis included. Last part of the work deals with the economic evaluation, where is being compared efficiency of existing and new technology.
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Kosíř, Tomáš. "Návrh výroby krytu senzoru vyráběného technologií přesného stříhání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231168.

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Master´s thesis project elaborated within the scope of Master´s degree submits a proposal of manufacturing of sensor cover by fineblanking technology. Sensor cover is manufactured from 4 mm roll of sheet metal. The material component is microalloyed steel S355MC. Annual production batch is 800 000 pieces. Based on the literature study, several possible methods of production parts are described. After evaluation of the required accuracy, surface quality and annual production, the technology of fineblanking using V-ring has been chosen. On the basis of technological and control calculations was chosen the triple action hydraulic press HFA 4500 plus, made by Feintool with a rated power 4500 kN. Design of cutting tool has been designed with moving punch.
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Jabůrek, Petr. "Technologie výroby plechových klecí pro radiální soudečková ložiska." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228162.

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The project conceived within engineer’s studies of branch 2303T002 is subbmitting a proposal for radial bearing cage produce technology. It is also subbmitting a design solution to functional parts for blanking the “windows” and coining the “locks”. The cage will be made from sheet steel 11 300.29. This cage should replace the current one machined from the brass Ms 58 Al. According to the literary research and development experiences of the company ZKL Brno, a.s., two pairs of tools were designed. First one for blanking the “windows” and second one for coining the “locks”. Blanking punch, blanking die and coining punch will be made from the steel 19436, coining die will be made from the steel 19312. Heat-treating process will be accomplished according to the enclosed drawings. Both pairs of tools will be mounted in the press LENR 63 AU (manufactured by the company ŠMERAL Trnava), with nominal force 630 kN.
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Vejrek, Tomáš. "Návrh progresivní technologie výroby střižného nástroje." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229158.

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Proposal progressive technology of production shearing tools. Description shearing tools and shear of the process, analysis current technology production shearing tools. Proposition two variant technology production given to dies method conventional and unconventional, elaboration technological progress and programmes on choice NC machinery, their comparison and technical economic evaluation in fine with recommendation for usage practically.
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Kučera, Radek. "Výroba části univerzálního otvíráku technologií přesného stříhání." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231191.

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The aim of the thesis is to design a manufacturing technology of a part of the universal opener with an innovated design. The component is made of stainless steel 17 240 (X5CrNi18-10). The blank is 2 mm thick sheet metal. Within the literary study the comparison of the possible technologies of manufacturing has been carried out. With respect to the batch size (200 000 pieces) and to the required quality of the component the fineblanking technology has been selected. For the manufacturing of the component a triple action hydraulic press HFA 3200plus has been chosen. This press will be coupled in production line with a feeding line FBA 8/300. The main point of the thesis is to design a cutting tool and to create a drawing documentation. Another part of the project is the technical and economical evaluation of the designed manufacturing process.
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Kašpar, Jaroslav. "Návrh výroby konzoly." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401025.

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The thesis deals with the production concept of the bracket for fixing the drying frame. The component is made of 11 343 steel. The semi-finished product is galvanized sheet with 2 mm thickness. With regard to the required quality of the component and the yearly production quantity (40,000 pieces), a new production technology was chosen based on a literary study by means of conventional shearing in a tool, followed by bending on a press brake. For the selected technologies, technological calculations and a cutting tool were designed, which are dealt with in the drawing documentation. The work also includes technical-economic evalua-tion of the proposed production method.
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Kummer, Michal. "Výroba ohýbaného profilu sdruženým nástrojem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229698.

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This diploma thesis describes the creation of the technological process for shelf clutch production. The shelf clutch will be made of material 11 321 by cutting and bending technologies. The first part of thesis includes the theoretical description of cutting and bending technologies. The second part contains calculations and design proposal of final combined cutting and bending tool and also selection of pressing machine. The thesis contains the unit block layout of the combined cutting and bending tool and detailed drawings of cutting and bending parts of the tool. The shelf clutch drawing is included too.
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Kraval, Jiří. "Výroba držáku magnetu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241157.

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This project developed within the engineering studies of M-STG submits a proposal of a production technology of production of the magnet holder made of DC03. Based on a literary study of the problem of cutting, drawing, bending and calculations manufacturing of the component in a production die was suggested. The production die uses a normalised component and is tightened on PE 100 crank press with nominal drawbar pull 1000 kN. The conclusion of the thesis deals with the economic benefit of the suggested manufacturing technology.
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Dissertations / Theses
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