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Progress in technology of mold milling with coated profile tools
Doležel, Ondřej ; Bumbálek, Bohumil (referee) ; Píška, Miroslav (advisor)
This diploma thesis is involved in possible development of different types of milling molds coated with modern plows. The first part is devoted to an analysis of contemporary trends in forms production technology. The analysis includes the different types of machines and tools for making various kinds of molds and dies. Another part deals with design of dies for sheet metal shears. The thesis continues by design of the production procedure after heat treatment and finishing die by miling. For milling of die are designed miling tools, the NC program and the possible development of manufacturing the die using a new machining center and the possibility of production optimization. The penultimate point of the thesis is technical and economical evaluation of the direction of development and comparison of positives and negatoves of each method. At the final evaluation is all summed up.
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Electro discharge machining with a focus on graphite and copper electrodes
KOLÁŘ, Zbyněk
The entry part introduce into the problematic of rework processes by molding injection tools for thermoplastic. Aim is necessity of change current rework process usage by electro discharge machining (EDM) technology.The theoretical part of the thesis describes the physical essence of EDM technology, the system of production of cutting electrodes and related issues. The practical part of work compare the process of production of copper and graphite electrodes with focus on production time and costs. The production parameters of the EDM process were analyzed and the wear of copper and graphite electrodes during the production process was compared. Main result of the thesis is an evaluation of the research activity, interpretation of the results of this activity and a proposal of measures to shorten the production time of the cutting electrodes and the time of the EDM machining by these electrodes.
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Progress in technology of mold milling with coated profile tools
Doležel, Ondřej ; Bumbálek, Bohumil (referee) ; Píška, Miroslav (advisor)
This diploma thesis is involved in possible development of different types of milling molds coated with modern plows. The first part is devoted to an analysis of contemporary trends in forms production technology. The analysis includes the different types of machines and tools for making various kinds of molds and dies. Another part deals with design of dies for sheet metal shears. The thesis continues by design of the production procedure after heat treatment and finishing die by miling. For milling of die are designed miling tools, the NC program and the possible development of manufacturing the die using a new machining center and the possibility of production optimization. The penultimate point of the thesis is technical and economical evaluation of the direction of development and comparison of positives and negatoves of each method. At the final evaluation is all summed up.
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