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Heat treatment of formed parts
Poloch, Milan ; Peterková, Eva (referee) ; Lidmila, Zdeněk (advisor)
Bachelor thesis focusing on heat treatment of formed parts. The chapter of basic termsdeals with steels for forming. Concrete formability and influence on plastic deformationson steel properties, influence of chemical composition, structural composition and termomechanical conditions during deformation. In the larger parts of the thesis are carriedout heat treatment. The prohibited concepts of heat treatment are explained in the in-troductory question and some follow the basic methods and then the basic methods ofheat treatment such as annealing and tempering with tempering are explained. All ofthese technologies have their own subchapters and are illustrated and supplemented withgraphs and figures. The practical amount consists of plastic deformations of roller-shaped samples. The samples were deformed, measured hardness, heat treatment followed bymeasured hardness. Changes of mechanical properties on samples are evaluated.
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Suitable lubricants for deep drawing of carbon steel plate
Poloch, Milan ; Císařová, Michaela (referee) ; Jopek, Miroslav (advisor)
The task of the diploma thesis is to design and manufacture a testing jig, which will then be used for experimental testing of lubricants for drawing stampings up to 4 mm thick. The drawn material is deep-drawn steel D04. Friction modeling between the traction edge and the retainer was used for a real simulation of the production process. The shaped traction edge was constructed on the basis of a real part. A total of 6 types of lubricants were tested, of which one lubricant in the form of a paste was selected as the reference. The other lubricants were then compared with the reference value of the measured maximum tensile force. The aim was to ensure a lubricant in a consistency other than paste. Of the oil lubricants we received, none of the lubricants approached the optimum values.
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Suitable lubricants for deep drawing of carbon steel plate
Poloch, Milan ; Císařová, Michaela (referee) ; Jopek, Miroslav (advisor)
The task of the diploma thesis is to design and manufacture a testing jig, which will then be used for experimental testing of lubricants for drawing stampings up to 4 mm thick. The drawn material is deep-drawn steel D04. Friction modeling between the traction edge and the retainer was used for a real simulation of the production process. The shaped traction edge was constructed on the basis of a real part. A total of 6 types of lubricants were tested, of which one lubricant in the form of a paste was selected as the reference. The other lubricants were then compared with the reference value of the measured maximum tensile force. The aim was to ensure a lubricant in a consistency other than paste. Of the oil lubricants we received, none of the lubricants approached the optimum values.
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Heat treatment of formed parts
Poloch, Milan ; Peterková, Eva (referee) ; Lidmila, Zdeněk (advisor)
Bachelor thesis focusing on heat treatment of formed parts. The chapter of basic termsdeals with steels for forming. Concrete formability and influence on plastic deformationson steel properties, influence of chemical composition, structural composition and termomechanical conditions during deformation. In the larger parts of the thesis are carriedout heat treatment. The prohibited concepts of heat treatment are explained in the in-troductory question and some follow the basic methods and then the basic methods ofheat treatment such as annealing and tempering with tempering are explained. All ofthese technologies have their own subchapters and are illustrated and supplemented withgraphs and figures. The practical amount consists of plastic deformations of roller-shaped samples. The samples were deformed, measured hardness, heat treatment followed bymeasured hardness. Changes of mechanical properties on samples are evaluated.
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