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Manufacturing of the support arm
Melichar, Ivo ; Staněk, Vojtěch (referee) ; Podaný, Kamil (advisor)
The thesis introduces a design for the technology of manufacturing the supporting arm used for positioning and rigidity of the front plate in relation to the metal socket in the container box. The arm is made of a 2 mm thick steel sheet and of a quality according to ČSN 411331 in a production series of 14,700 units / year of the left modification and 14,700 pieces / year of the right modification. After the assessment of individual production options, the cutting technology in a progressing tool and bending technology in a simple tool were selected. Based on a literary study on cutting and bending, an optimal process of arm manufacturing was proposed. After the design, technological and control calculations for individual technologies, the tools were designed, and the technical documentation for those tools was developed. For the cutting technology, an Andritz Kaiser press with a PV120F / 1 labelling was selected. For the second production step, bending technology, a press from Šmeral Brno a.s. with a LEN 63 labelling was selected. Both of these presses meet the requirements of both the forming force and the tool dimensions. After the economy of production was assessed, production costs of one piece were determined with a 30 % profit assumed to 28.47 CZK. The turning point when production became profitable was found after the production of 18,121 units.
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Manufacturing of the support arm
Melichar, Ivo ; Staněk, Vojtěch (referee) ; Podaný, Kamil (advisor)
The thesis introduces a design for the technology of manufacturing the supporting arm used for positioning and rigidity of the front plate in relation to the metal socket in the container box. The arm is made of a 2 mm thick steel sheet and of a quality according to ČSN 411331 in a production series of 14,700 units / year of the left modification and 14,700 pieces / year of the right modification. After the assessment of individual production options, the cutting technology in a progressing tool and bending technology in a simple tool were selected. Based on a literary study on cutting and bending, an optimal process of arm manufacturing was proposed. After the design, technological and control calculations for individual technologies, the tools were designed, and the technical documentation for those tools was developed. For the cutting technology, an Andritz Kaiser press with a PV120F / 1 labelling was selected. For the second production step, bending technology, a press from Šmeral Brno a.s. with a LEN 63 labelling was selected. Both of these presses meet the requirements of both the forming force and the tool dimensions. After the economy of production was assessed, production costs of one piece were determined with a 30 % profit assumed to 28.47 CZK. The turning point when production became profitable was found after the production of 18,121 units.
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