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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Production of seamless rings by technology radial-axial rolling
 Zapletalová, Martina ; Lidmila, Zdeněk (referee) ; Podaný, Kamil (advisor)
The thesis is focused on the production of a seamless ring manufactured from low-alloyed steel 15 142, which fills the function as a large-dimensional bearing. On the basis of suitable production technologies analysis, the radial axial rolling method was chosen and a specific manufacturing process was proposed. During the manufacturing time, the creation of the forging defects in the transfers forms were occurred, which was totally undesirable. By changing the parameters of the machine, in particular the rolling curve and the temperature, the process was optimized and the production performed completely without defects.
Detailed record
Production of seamless rings by technology radial-axial rolling
 Zapletalová, Martina ; Lidmila, Zdeněk (referee) ; Podaný, Kamil (advisor)
The thesis is focused on the production of a seamless ring manufactured from low-alloyed steel 15 142, which fills the function as a large-dimensional bearing. On the basis of suitable production technologies analysis, the radial axial rolling method was chosen and a specific manufacturing process was proposed. During the manufacturing time, the creation of the forging defects in the transfers forms were occurred, which was totally undesirable. By changing the parameters of the machine, in particular the rolling curve and the temperature, the process was optimized and the production performed completely without defects.
Detailed record

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