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Welding of socket from C-Mn steel
Boček, Martin ; Mrňa, Libor (referee) ; Kubíček, Jaroslav (advisor)
Final thesis, elaborated within the master study in the field of Manufacturing technology, deals with analysis and solving of weld cracking problem in welds of anti-roll bar socket for passenger car. Sockets material is fine-grained low-alloy steel S420MC. For better understanding of the problem, a literary study has been elaborated, describing the issue. Next, an analysis of parts material and its weldability, has been conducted, according to ČSN EN 1011-2 standard. After an analysis of cracks and considering current conditions of sockets welding a series of experiments has been designed to evaluate impact of different process parameters on final weld quality. Experiments results have been used to compile a series of recommendations for adjustment of the welding process and to eliminate weld cracking. The results of the experiments were used as a basis for elaboration of WPS protocol.
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Study of controlled cooling from final forging temperature of steel drope stamping
Vančura, Filip ; Kraváček, Martin (referee) ; Ptáčková, Marie (advisor)
In s industrial production is more and more requierement to a saving costs. Findig savings has been removed even to the areas using safety parts, f.e. parts of car chassis. This projekct agglomerate posibilities of technology controled cooling proces of die forgings from micro alloy steel, which is right example how we can spare production expenditure. Micro alloy steel 30MNVS6 was studied within the standard production conditions. A lot of tests were made. There where change a cooling rates of proceses without delay after forging proces. One experiment was made for two temperature of forging.proces. Two series of mechanical tests was made and then was observed phenomenon of metalurgical structure changed and mechanical properties.
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Welding of socket from C-Mn steel
Boček, Martin ; Mrňa, Libor (referee) ; Kubíček, Jaroslav (advisor)
Final thesis, elaborated within the master study in the field of Manufacturing technology, deals with analysis and solving of weld cracking problem in welds of anti-roll bar socket for passenger car. Sockets material is fine-grained low-alloy steel S420MC. For better understanding of the problem, a literary study has been elaborated, describing the issue. Next, an analysis of parts material and its weldability, has been conducted, according to ČSN EN 1011-2 standard. After an analysis of cracks and considering current conditions of sockets welding a series of experiments has been designed to evaluate impact of different process parameters on final weld quality. Experiments results have been used to compile a series of recommendations for adjustment of the welding process and to eliminate weld cracking. The results of the experiments were used as a basis for elaboration of WPS protocol.
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Study of controlled cooling from final forging temperature of steel drope stamping
Vančura, Filip ; Kraváček, Martin (referee) ; Ptáčková, Marie (advisor)
In s industrial production is more and more requierement to a saving costs. Findig savings has been removed even to the areas using safety parts, f.e. parts of car chassis. This projekct agglomerate posibilities of technology controled cooling proces of die forgings from micro alloy steel, which is right example how we can spare production expenditure. Micro alloy steel 30MNVS6 was studied within the standard production conditions. A lot of tests were made. There where change a cooling rates of proceses without delay after forging proces. One experiment was made for two temperature of forging.proces. Two series of mechanical tests was made and then was observed phenomenon of metalurgical structure changed and mechanical properties.
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