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Optimisation of machining process for an industrial application and a CNC machining centre
Soukupová, Veronika ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
Tato diplomová práce byla vypracována v průmyslovém kontextu, během stáže ve firmě Metso. Zlepšení obráběcího procesu zajišťovacích šroubů bylo cílem této práce, aby byla umožněna budoucí automatizace zakládání obrobku do stroje. Zlepšení bylo zhodnoceno na základě úrovně autonomie během obrábění, eliminace neprogramovaných zastavení stroje operátorem a dostačujícího odvodu třísek. Implementace automatických systému do číslicově řízeného obráběcího centra umožňuje zvýšení produktivity. Před automatizováním obráběcího procesu však musí být proces optimalizován. Zejména dostatečná fragmentace třísek a jejich evakuace jsou klíčové. Dlouhé nedělené třísky můžou poškodit systémy jako například automatický měnič nástrojů, dopravník třísek nebo průmyslového robota. Dostatečná lámavost třísek může být zaručena správným výběrem technologie a strategie obrábění, výběrem řezného nástroje a řezných podmínek pro daný materiál obrobku.
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Production of threads with taps
Chludil, Petr ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This thesis deals with the study of production process of threads by screw-taps from the very description of the individual threads through all the available methods of the threads production, thread control function, up to the actual taps, materials, coatings and their distribution. In the experimental part the thesis deals with the question whether it is possible to find an alternative to the standard production of threads using cutting by taps. This alternative seems to be the use of forming taps. The experiment took place under constant cutting conditions and consisted of two parts, one of them was the production of threads into the pre-drilled through holes and the second one was the production of threads into the pre-drilled impassable holes. The result of the experiment was finding the course of the cutting moment depending on the time and the amount of wear of the examined kinds of taps when all the measured values had to be statistically processed and conclusions were then evaluated.
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The options of the joining of tube components
Holusek, Maxmilián ; Štroner, Marek (referee) ; Peterková, Eva (advisor)
The bachelor thesis deals with tube components joining methods. In the thesis, the preparation of the tube components is mentioned, as well as its tools and machines for cutting and adjusting the components. Furthermore, the work introduces several joining methods such as soldering and brazing, welding, pressing technology, adhesive bonding and threaded connection. The basic principle is described for each method, as well as using tools and machines plus advantages and disadvantages. In the end, the use of tube components is presented.
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Production of threads with taps
Nasyrov, Ildar ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
In the theoretical part of this thesis are described types of threads, methods of production and control of threads, types of taps, types of coatings and cutting fluids, analysis of specific cutting forces during thread cutting and theoretical analysis of the cross-section distribution by taps using. The experimental part of this thesis includes the production of internal threads by cutting tap at constant cutting conditions. The cutting time was measured according to the function of time during the experiment. The measured data were statistically processed and, as a result, the cost of one thread production was calculated.
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Production of threads with forming taps
Yermakov, Yegor ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
Tato diplomová práce se zabývá otázkami výroby závitů tvářecími a řezacímí závitníky. Její první část popisuje druhy závitníků, které se používají ve strojírenství. Pak se práce zaměřuje na otázky základních principů řezání závitů a tváření materiálu při obrábění. Dále se zaměřuje na porovnání řezných momentů a dalších veličin při aplikaci tvářecích závitníků v procesu obrábění. Výsledkem experimentu bylo zjíštění průběhů řezných momentů v závislosti na čase, který byly statisticky zpracovány a vyhodnoceny.
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Production of threads with taps
Chludil, Petr ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This thesis deals with the study of production process of threads by screw-taps from the very description of the individual threads through all the available methods of the threads production, thread control function, up to the actual taps, materials, coatings and their distribution. In the experimental part the thesis deals with the question whether it is possible to find an alternative to the standard production of threads using cutting by taps. This alternative seems to be the use of forming taps. The experiment took place under constant cutting conditions and consisted of two parts, one of them was the production of threads into the pre-drilled through holes and the second one was the production of threads into the pre-drilled impassable holes. The result of the experiment was finding the course of the cutting moment depending on the time and the amount of wear of the examined kinds of taps when all the measured values had to be statistically processed and conclusions were then evaluated.
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On the modern technologies of thread production
Mišák, Ondřej ; Dvořáková, Jana (referee) ; Píška, Miroslav (advisor)
This bachelor's thesis deals with the study of threads, specifically the introduction to the basic geometry of threads, their production and modern trends by which threads can be made. The experimental part is devoted to the production of threads using cutting and forming taps, comparison of force and moment loads and damage caused during the production of threads when changing the cutting speed. In the end, the achieved results of experimental tests and their evaluation are summarized.
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Diagonal rolling technology
Popp, Dominik ; Benč, Marek (referee) ; Podaný, Kamil (advisor)
The aim of the thesis is research in the field of diagonal rolling technology. First, the heating of the material, which is an integral part of most forming processes, is described. In particular, the prevention of undesirable phenomena that can occur during heating is mentioned. Also mentioned are the heating furnaces, most commonly found in rolling mills. Then the methods used in the initial stage of seamless tube production are presented. In addition to a description of the individual principles, the deformation behaviour of the material is outlined. Subsequently, a description of the finishing operations required to roll the tubes to final dimensions is discussed. In the last section are introduce special forming benches, which can be used to form threads, ball blanks or even ball pins, used in the suspension of passenger car wheels.
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The options of the joining of tube components
Holusek, Maxmilián ; Štroner, Marek (referee) ; Peterková, Eva (advisor)
The bachelor thesis deals with tube components joining methods. In the thesis, the preparation of the tube components is mentioned, as well as its tools and machines for cutting and adjusting the components. Furthermore, the work introduces several joining methods such as soldering and brazing, welding, pressing technology, adhesive bonding and threaded connection. The basic principle is described for each method, as well as using tools and machines plus advantages and disadvantages. In the end, the use of tube components is presented.
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