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Risk analysis of operated horizontal milling machine
Mergeščíková, Lenka ; Rozehnalová, Jana (oponent) ; Blecha, Petr (vedoucí práce)
This bachelor thesis concerns about the risk analysis of the operated console horizontal milling machine produced in 1963. The thesis contains an overview of the valid legislation of the European Union and the Czech Republic concerning occupational safety and health. Subsequently, a review of the current harmonized standards and standards valid in the year of construction is conducted. Another part of the thesis is the identification of hazards and the proposal of preventive measures to reduce risks. In conclusion, acquired knowledge is summarized.
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Manufacture of Chandelier Hinge
Mergeščíková, Lenka ; Jopek, Miroslav (oponent) ; Žák, Ladislav (vedoucí práce)
The master’s thesis presents a design for the technology of manufacture of a chandelier hinge from the material ČSN 42 3005 (Cu99.5) with a sheet thickness of 0.5 mm. Due to the spherical shape of the part and the series 40 000 parts per year, the technology of deep drawing was chosen for two drawing operations, while the redrawing is performed by reverse deep drawing. Due to the nature of the component, the additional technology is shearing. The manufacturability of the part was verified using numerical simulation in the PAM-STAMP software. The forming process is performed using three forming tools on three different presses. For the first, combined tool, an LE 160C eccentric press is used. A hydraulic press ZHO100 is applied in the second tool for the reverse drawing, and finally, an eccentric press LEK160 is applied for the shearing in the third operation. With the selected profit value of 25 %, the final price for the component was set at CZK 104.17. The turning point occurs after reaching 16 248 parts.
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Manufacture of Chandelier Hinge
Mergeščíková, Lenka ; Jopek, Miroslav (oponent) ; Žák, Ladislav (vedoucí práce)
The master’s thesis presents a design for the technology of manufacture of a chandelier hinge from the material ČSN 42 3005 (Cu99.5) with a sheet thickness of 0.5 mm. Due to the spherical shape of the part and the series 40 000 parts per year, the technology of deep drawing was chosen for two drawing operations, while the redrawing is performed by reverse deep drawing. Due to the nature of the component, the additional technology is shearing. The manufacturability of the part was verified using numerical simulation in the PAM-STAMP software. The forming process is performed using three forming tools on three different presses. For the first, combined tool, an LE 160C eccentric press is used. A hydraulic press ZHO100 is applied in the second tool for the reverse drawing, and finally, an eccentric press LEK160 is applied for the shearing in the third operation. With the selected profit value of 25 %, the final price for the component was set at CZK 104.17. The turning point occurs after reaching 16 248 parts.
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Risk analysis of operated horizontal milling machine
Mergeščíková, Lenka ; Rozehnalová, Jana (oponent) ; Blecha, Petr (vedoucí práce)
This bachelor thesis concerns about the risk analysis of the operated console horizontal milling machine produced in 1963. The thesis contains an overview of the valid legislation of the European Union and the Czech Republic concerning occupational safety and health. Subsequently, a review of the current harmonized standards and standards valid in the year of construction is conducted. Another part of the thesis is the identification of hazards and the proposal of preventive measures to reduce risks. In conclusion, acquired knowledge is summarized.
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