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Manufacturing of the TV Wall Bracket
Gregor, Radek ; Štroner, Marek (referee) ; Peterková, Eva (advisor)
The master 's thesis deals with the design of a tool for a TV bracket with an expected production of 300,000 pieces per year. After a review of possible production technologies, production in a progressive compound tool that combines shearing and bending was chosen. DC01 material with a thickness of 2 mm in coil was selected for the production of the part with a 52.23% utilization according to the selected cutting plan. Then, a manufacturing process was established for the production of the part, which will be made in six steps. Furthermore, the total forming force of 893,1 kN and the forming work of 1355,8 J were calculated. The mechanical press was equipped with an automatic material feeder ARPL RAL 250 from Attl a spol s.r.o. After the design of the combined progressive tooling, the functional dimensions were determined and control calculations for the critical sections were performed, all of which were met.
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Manufacturing of a VESA holder
Večeřa, Jaromír ; Podaný, Kamil (referee) ; Peterková, Eva (advisor)
This diploma thesis presents a proposal for manufacturing of a monitor holder supporting the VESA mounting system. The part is made of DC01 steel with a thickness of 2 mm, while the size of the production series was set at 150,000 pcs/year. After considering possible production variants, the use of a progressive combined tool combining cutting and bending was chosen as a suitable method. After technology control and selecting a suitable production process, calculations of forming forces and work were performed. The total force was set at 699,7 kN and the total forming work reaches 1,2 kJ. The S160 press from the company Šmeral Brno a.s. was chosen as a suitable machine for production. The semi-finished product in the form of a metal sheet coils will be fed into press by feeding device.
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Welding of hot-dip galvanized sheets using hybrid Laser-TIG technology
Bukvic, Tomáš ; Sigmund, Marian (referee) ; Mrňa, Libor (advisor)
Thesis is focused on verification of suitability of Laser-TIG technology for penetrating welding of galvanized sheets, made of WSS M1A 365-A14 50G steel and DC01 steel. Electric arc functions here as a preheating for evaporation of zink layer. Electric current was chosen as a variable parameter of magnitudes 0, 20, 30 and 40 A. Test welds were made, which have been subjected to a tensile test and metallographic evaluation. The positive influence for electrolytically galvanized steel WSS M1A 365-A14 50G was registered and determination of optimal welding parameters was successful. The electric arc also had a positive effect on welding of hot-dip galvanized steel DC01, but at the selected test parameters not enough to achieve a reliable connection.
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Assessment of heterogeneous properties butt welds in laser welding and electron beam welding
Rozsypal, Oldřich ; Kubíček, Jaroslav (referee) ; Mrňa, Libor (advisor)
The project was developed within the engineering degree in engineering technology, and is focused in welding together of two different materials. Welds will be done on a high strength steel Domex 420 MC and deep drawing steel DC01 using laser welding, and will be compared with the method of electron beam welding. Part of this project is a scientific research describing the basic physical principles of both methods, different types of lasers, welding material properties and inspection of welds. In the experimental part was carried tensile test, macroscopic and microscopic examination. Finally, work is to evaluate the individual tests.
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Manufacturing of an End Stop for a Sliding Gate
Holusek, Maxmilián ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
This masters´s thesis deals with a manufacturing of an end stop for a sliding gate. The semifinished product material is a DC01 steel with a thickness of 3 mm and the production size of the series was set at 100 000 pieces a year. From many posibilities of production alterntives, a progressive die tool was chosen. It combines the two main technologies, which in this case are cutting and bending. After a proposal for manufacturing was made, much needed calculations of forming forces and work were done. The total forming force equals 1 937,7 kN. The next step was making a design of a progressive die, plus picking a S 250 press from a company called Šmeral Brno a.s. A production line from a company called Attl a spol. s.r.o. for feeding a steel coils into the press was chosen.
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Manufacturing of the TV Wall Bracket
Gregor, Radek ; Štroner, Marek (referee) ; Peterková, Eva (advisor)
The master 's thesis deals with the design of a tool for a TV bracket with an expected production of 300,000 pieces per year. After a review of possible production technologies, production in a progressive compound tool that combines shearing and bending was chosen. DC01 material with a thickness of 2 mm in coil was selected for the production of the part with a 52.23% utilization according to the selected cutting plan. Then, a manufacturing process was established for the production of the part, which will be made in six steps. Furthermore, the total forming force of 893,1 kN and the forming work of 1355,8 J were calculated. The mechanical press was equipped with an automatic material feeder ARPL RAL 250 from Attl a spol s.r.o. After the design of the combined progressive tooling, the functional dimensions were determined and control calculations for the critical sections were performed, all of which were met.
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|
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Manufacturing of a VESA holder
Večeřa, Jaromír ; Podaný, Kamil (referee) ; Peterková, Eva (advisor)
This diploma thesis presents a proposal for manufacturing of a monitor holder supporting the VESA mounting system. The part is made of DC01 steel with a thickness of 2 mm, while the size of the production series was set at 150,000 pcs/year. After considering possible production variants, the use of a progressive combined tool combining cutting and bending was chosen as a suitable method. After technology control and selecting a suitable production process, calculations of forming forces and work were performed. The total force was set at 699,7 kN and the total forming work reaches 1,2 kJ. The S160 press from the company Šmeral Brno a.s. was chosen as a suitable machine for production. The semi-finished product in the form of a metal sheet coils will be fed into press by feeding device.
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|
|
Welding of hot-dip galvanized sheets using hybrid Laser-TIG technology
Bukvic, Tomáš ; Sigmund, Marian (referee) ; Mrňa, Libor (advisor)
Thesis is focused on verification of suitability of Laser-TIG technology for penetrating welding of galvanized sheets, made of WSS M1A 365-A14 50G steel and DC01 steel. Electric arc functions here as a preheating for evaporation of zink layer. Electric current was chosen as a variable parameter of magnitudes 0, 20, 30 and 40 A. Test welds were made, which have been subjected to a tensile test and metallographic evaluation. The positive influence for electrolytically galvanized steel WSS M1A 365-A14 50G was registered and determination of optimal welding parameters was successful. The electric arc also had a positive effect on welding of hot-dip galvanized steel DC01, but at the selected test parameters not enough to achieve a reliable connection.
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Assessment of heterogeneous properties butt welds in laser welding and electron beam welding
Rozsypal, Oldřich ; Kubíček, Jaroslav (referee) ; Mrňa, Libor (advisor)
The project was developed within the engineering degree in engineering technology, and is focused in welding together of two different materials. Welds will be done on a high strength steel Domex 420 MC and deep drawing steel DC01 using laser welding, and will be compared with the method of electron beam welding. Part of this project is a scientific research describing the basic physical principles of both methods, different types of lasers, welding material properties and inspection of welds. In the experimental part was carried tensile test, macroscopic and microscopic examination. Finally, work is to evaluate the individual tests.
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