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Hot forging of projectile
Frydrych, Jan ; Císařová, Michaela (referee) ; Lidmila, Zdeněk (advisor)
The project elaborated design of technology production of artillery shell – thick walled component from plain steel 11 503. Based on the research of press forging and calculations, it was proposed to forge with production line which contains two forging presses. These allow us to use special way of forging. The forged piece is broached through several pulleys and its diameter is slowly getting smaller and required form is made. Forging tools and forging dies are made from steel 19 552
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Production of gear
Svozilová, Lucie ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
The project elaborated design of technology production of the spur bevel gear, which is made of a steel rod from material 12 050. Pursuant to of the literary pursuit and calculation is designed as a threeoperational forging in an open die with using of ejector. Forging is realised in the vertical crank press LZK 1600 P/SH, with forming force 16 MN. Shearing and punching is performed in the shear press LKOA 200. Forging dies are produced from alloyed instrumental steel 19 556 heat-worked according to drawing documentation.
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A simulation of closed die forging using finite element method
Nytra, Michal ; Šebek, František (referee) ; Kubík, Petr (advisor)
Tato diplomová práce se zabývá výpočtovým modelováním zápustkového kování, které patří do metod objemového tváření zatepla. Cílem je změnit běžnou praxi tvorby výpočtových modelů ve specializovaných softwarech na bázi metody konečných prvků (MKP) a sestavit výpočtový model v MKP softwaru Abaqus. Pro výpočet jsou zde použity deformační varianta MKP a explicitní algoritmus. Řešenou součástí je ozubené kolo automobilové převodovky. V rámci práce je vytvořena rešerše z oblasti objemového tváření včetně specializovaných programů pro simulace procesů tváření. Dále jsou v práci uvedeny všechny konstitutivní vztahy pro popis elasto-plastického modelu materiálu s tvárným porušením. Následuje teorie přenosu tepla, jsou popsány všechny způsoby jeho realizace s jejich matematickými formulacemi včetně metod řešení. Klíčovou je kapitola popisující postup tvorby výpočtového modelu v softwaru Abaqus od tvorby geometrie až po okrajové podmínky. Následuje analýza dosažených výsledků a práce je zakončena výhledem na možné pokračování v tomto tématu.
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Forging oblong forgings
Příkaský, Jakub ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
The project deals with the design of the production of a rod-shaped component using a die swage. The material is steel 12 060. Based on a literature study on forging and calculations, the forging, the technological process and the hammer die were designed. Based on the calculated work required, the power hammer KHZ 2 was designed. Technical and economic evaluation was performed.
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The Issue of Trimming and Punching of the Forged Piece
Kopečný, Adam ; Šlais, Miroslav (referee) ; Řiháček, Jan (advisor)
The bachelor thesis deals with the design of tool for punching and trimming of the forged case, made from 14 331 steel. Forging will be done on forging press LMZ 1 000 made by Šmeral Brno, a. s. The dies are made from 19 552 steel. Production series is 520 000 pieces per year. The tool is designed as progressive. Simulation of the forging process in FormFEM software has been done, because of evaluation of the trimming and punching temperature. Based on calculated punching and trimming force the press S 160 E made by Šmeral Brno, a. s., was chosen. Piercing punches and dies are produced from instrumental steel 19 550, with heat treatment according to design documentation. To conclude, the economical evaluation was done. The bachelor thesis was done in cooperation with Šmeral Brno, a. s.
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Production of gear
Havlíček, Roman ; Řiháček, Jan (referee) ; Podaný, Kamil (advisor)
The thesis deals with the design of production technology of the chain wheel used in the scraper conveyor made of 14 220 steel. After considering all production options, die forging was selected. On the basis of chosen technology, shape adjustments, additions and dimensional tolerances were made. From the volume of the forged wheel, a semi-finished product with a diameter of 150 mm and a length of 106 mm was determined. Based on the scale of series, the machinery equipment of the company and the size of the forged piece, the KHZ 16A hammer, with a nominal energy of 160 kJ, was chosen as a forming machine. According to the standards, a single-die dies were designed for the forging. The LKOA 200 press was chosen to cut off the flash and the membranes. Additional machines for manufacturing were chosen and technological standard was compiled. At the end costs of the material for production amounting to 2 566 045,3 CZK and the cost of production of die in the amount of 187 000 CZK were calculated.
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Production of the piston rod eye
Vahala, Jiří ; Štroner, Marek (referee) ; Podaný, Kamil (advisor)
The project deal with technology design of production of the piston rod eye from steel 11 523 in the amount of 30 000 pieces. From various possibilities of technology was chosen as the most optimal method the technology die forging. Pursuant to the study of literature and calculations there will be made the forging as a double-edged in single-cavity die on hammer witch several hits in finishing hollow. According to the calculated energy there was selected pneumatic-hydraulic hammer KHZ-4A witch stated energy of 40kJ. The tool was made of steel 19 552, heat-treated according to the drawing documentation. The technical and economical evaluation was focused on the total material cost of the semi-finished material and the cost of manufacturing forging die, which is 1 229 507 CZK in total.
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Issues of hammer die forging
Žižka, Jiří ; Štroner, Marek (referee) ; Podaný, Kamil (advisor)
This bachelor thesis deals with issues of hammer die forging which is technology that is mainly used for the production of shaped and height-versatile and rugged forgings with ribs and protrusions. Forgings are made by several blows of the tools which are called dies. Design of forgings is based on drawing documentation. For successful production of the component it is important to choose right forging temperature, parting line, required additions and tolerances. Hammers are machines which work with hit energy, they use kinetic energy for forming the material. Their characteristic features are good climbing of the material and filling deeper chambers in direction of the hit. Several types of hammers are used, for example fall hammer or double acting hammer and more.
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Die forging
Stračánek, Rostislav ; Šlais, Miroslav (referee) ; Lidmila, Zdeněk (advisor)
This diploma thesis is based on proposal of manufacturing technology forging of connection rod by die forging. The connection rod is made of 12 050 steel and it is part of crank mechanism in combustion engine. Production series was specified to 120 000 pcs. for year. Into technology procedure was implemented method of cross wedge rolling before die forging. The material for transverse cross wedge rolling was chosen 19 554 steel. Process of die forging was selected three operation in vertical forging press LZK 4000 with pressure force 40 MN made by company Šmeral Brno a.s. For die material was chosen 19 552 steel. And finally was carried out technical and economical evaluation of the forging production.
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Forgings in the engineering drawing
Krulich, Hynek ; Nohál, Libor (referee) ; Svoboda, Petr (advisor)
This Bachelor’s thesis deals with an overview study of technical documentation of forgings. It includes history, characteristics, basic division and machines used in forging. Next part focuses on their creation by the die method. Final part is discussion which summarises an examlpe of these method.
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