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Analysis of forging disagreement
Novotný, Karel ; Hoza, Jiří (referee) ; Fiala, Alois (advisor)
This diploma thesis deals with the generation of the different drope stampings in industrial process in MBNS Kovárna Company. The main purpose of this thesis is analysis of the industrial process and finding the main factors influences on the process. It especially deals with forgings of the shafts and also flanges with the similar quality of material 42CrMo4. Reasons of the disagreements are focused on surface insensibilities of the forging - crack. First theoretic part introduces company, meaning of the quality of material and describes tools used for finding reasons of the generation of disagreements. In the second practical part is described the whole industrial process and determination of the reasons of disagreements. In concluding part the results are analyzed and some correctional recommendations are suggested.
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Forging of rotary forgings
Konvalina, Michal ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
The thesis is focused on manufacturing proposal of the conveyor chain sprocket using die forging from steel C45 (12 050). Based on the literature review of eligible technologies, volume termoforming technolology has been selected here, more accurately closed die forging on a vertical crank forging press with an open flash gutter. Dimensions of forging and die are designed according to appropriate valid standards. Based on calculated tensile force of 10,83 MN will be forging performed on vertical forging press LZK 1600 P/SH. Forging die will be made of low alloy tool steel 1.2713 (19 662) and ejection of forging will be executed by three ejector pins in lower and upper finishing die.
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Manufacturing of a jet half coupling
Ostřížek, Jan ; Štroner, Marek (referee) ; Řiháček, Jan (advisor)
The work deals with the design of the production of a jet half coupling made of aluminum alloy AlMg1Si1Mn. At the beginning of the work is an analysis of possible production methods, of which the most suitable method of die forging. Based on the evaluation of technological technology, shape adjustments are made, additions and dimensional deviations are selected. A semi-finished product 50 x 108 mm is determined from the forging volume. The crank press LZK 1600 P / SH is chosen for forging. According to the standards, 2 forging and 1 finishing dies are designed for the forging. At the end of the work is also given an analysis of cutting, on the basis of which the press LKOA 200 is chosen.
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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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Production of weapon conclusion
Diviš, Adam ; Forejt, Milan (referee) ; Lidmila, Zdeněk (advisor)
The thesis deals with the design of technology for production of weapon conclusion by die forging. The weapon conclusion will be made of C45 steel in series of 500 000 pieces per year. Before forging, the base semi-finished product will be treated using cross-wedge rolling technology. Thanks to the chosen production process, the forging will be made as four pieces. A simulation of the forging process was made for the created design. Results of a simulation showed that metal did not fill entire hollow. Based on these results was made changes in design and the simulation was performed again. According to the results of the second simulation, the hollow has already been filled with metal. For the forging was chosen the machine LZK 2500P from Šmeral a.s with a nominal force 25MN. In the conclusion there was a technical-economic evaluation of costs for the material required for production of entire series.
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Design of wheel hub production
Šidlák, Filip ; Jopek, Miroslav (referee) ; Podaný, Kamil (advisor)
The thesis deals with the design the technology production of wheel hub for the automotive industry made of C45 steel. After the evaluation of suitable technologies, a die forging on a mechanical press was selected. On the basis of technology analysis, the component shape was modified, all allowances and dimensional tolerances were set. According to calculated forming force, the crank press LZK 3150B with nominal force 31, 5 MN from the manufacturer Šmeral Brno, a. s., was chosen. Manufacturing is divided into two operations, pre-forging and after that final forging. Design of dies is based on the ČSN 22 8306 standard and they are made of tool steel of grade 19 552 with the subsequent heat treatment. The dies have upper and lower ejector for easier removal of the forged piece.
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Production of support by solid forming
Pfeifer, František ; Štroner, Marek (referee) ; Kopřiva, Miloslav (advisor)
PFEIFER František: Production of support by solid forming. A Graduation Thesis of Master´s Studies, the 5th Year of Study, the School-year 2008/2009, FSI VUT Brno, Department of Machining, May 2009, Pages No. 94, Pictures No. 37, Tables No. 3, Appendixes No. 13. The Graduation Thesis, elaborated in the framework of engineering studies, presents the production technology of support component from steel ČSN 12 010. A material is a rod of the 130 – 251 ČSN 42 5510. A yearly production is 95 000 pieces. Based on the studies of possible production technologies was proposed the technology of production by the vertical forging press LMZ 6500B (Šmeral Brno a. s.) with a nominal forming power of 65 MN, flash and pellicle trimming on a trimming press with a nominal power of 8 MN. For this option, the required technological calculations, the design of the die, the specification of production machines and a simulation forming process which is made in the software QFORM have been carried out.
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Design of robotized workplace for die forging
Krejčí, Radek ; Zavadil, Radek (referee) ; Podaný, Kamil (advisor)
The thesis deals with the design of technology for production of wheels to be manufactured by die forging 15 142 low-alloy steel at an amount of 500,000 items per year. Based on a consideration of the suitable methods of manufacture, die forging on a Jing Duann FP-1600G vertical forging press was chosen as the best, as documented by the necessary technological and design drawings. A die with inserts made of 19 552 steel was designed for this machine. In view of the volume of annual production, a fully automated workplace was designed consisting of three robots and a chain and pan conveyor. In the conclusion there was a technical-economic evaluation of costs for the material of the semi-finished products and price of dies for annual production.
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Forging of a hinge eyebolt
Puklický, Vladimír ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
Bachelor thesis developed in the bachelor degree addresses the production process eyebolt combination of the two technologies volume thermofotming. Forging the forging and die forging slug for making the final shape of the part. Eyebolt will be produced in a series of 5,000 units / year of structural steel ČSN 11 375.1 with a carbon content of 0.2 % C. The material is supplied in the form of round bars with a diameter of 135 mm and a length of 6000 mm . From this it will be cut smaller pieces using a 172 mm long industrial scissors ScKU 800 Based on the literature study and fitting the calculations was chosen for forging hammer KHZ 4 A from Šmeral Brno as and drop forging hammer with the designation L 9 mg in 2040 by a French company Bché . Semi-finished product is heated in a gas chamber furnace RKG 08.9.03-12 with an output of 600 kW. Forging the trimming on the trim press LKOA 200th Dies are made of tool steel DIN 19 663.
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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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