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Rationalization of holder production
Šidlák, Jaromír ; Zemčík, Oskar (referee) ; Sliwková, Petra (advisor)
This thesis presents a proposal to replace the weldment of a mount with a workpiece. The mount is part of a designer light and 200 of them are manufactured every year. The mount material has been changed from stainless steel 1.4301 to aluminium alloy EN AW 6082. Design modifications have been made to the part to improve its functional properties and reduce machine time when it is made. A semi-finished product from a cold-pressed and drawn round bar according to ČSN EN 755 – 1 was determined and its size was calculated. The degree of material usage was then determined, as was consumption of the material for the year’s production, which amounts to 6 bars 3 metres long. Machinery from the company’s portfolio was proposed for the modified part. The majority of the part is produced on a KL 285 CNC turning centre. Appropriate machining tools were chosen for the selected machines. The work includes the complete technological production process as well as the CNC programs for machining the part. They were created directly at the machine using the Sinumerik 828D control system, specifically its Shopturn superstructure. After debugging the program, the necessary machining tools were placed as appropriate in the machine. Prototypes were then made to verify that the technology was designed correctly and that the parts were manufacturable.
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Production of the "Pant" component
Šidlák, Jaromír ; Lidmila, Zdeněk (referee) ; Žák, Ladislav (advisor)
The thesis presents a proposal for manufacturing a basic hinge body. Together with the base, it forms an assembly that can be used, for example, in letter boxes or switchboards. The component is made of 3 mm DC01-A-m steel and has an annual production run of 10,000 pieces. The part has a galvanic zinc surface treatment. After considering possible production technologies, production in a progressive shear tool was chosen. The production process was designed to produce the hinge from steel sheets cut into strips. Based on the calculations, a suitable cutting plan was then chosen and the necessary pressing force and labour was calculated. The LEN 63 C press from the manufacturer ŠMERAL Trnava was chosen for the production. The thesis also includes designing the progressive tool, which was based on the necessary calculations. The tool itself was designed mainly from standardized parts. An economic evaluation of the design was also made. It determined the required quantity of material per production batch and the selling price of the basic hinge body, which is CZK 11.9 per piece.
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Production of the "Pant" component
Šidlák, Jaromír ; Lidmila, Zdeněk (referee) ; Žák, Ladislav (advisor)
The thesis presents a proposal for manufacturing a basic hinge body. Together with the base, it forms an assembly that can be used, for example, in letter boxes or switchboards. The component is made of 3 mm DC01-A-m steel and has an annual production run of 10,000 pieces. The part has a galvanic zinc surface treatment. After considering possible production technologies, production in a progressive shear tool was chosen. The production process was designed to produce the hinge from steel sheets cut into strips. Based on the calculations, a suitable cutting plan was then chosen and the necessary pressing force and labour was calculated. The LEN 63 C press from the manufacturer ŠMERAL Trnava was chosen for the production. The thesis also includes designing the progressive tool, which was based on the necessary calculations. The tool itself was designed mainly from standardized parts. An economic evaluation of the design was also made. It determined the required quantity of material per production batch and the selling price of the basic hinge body, which is CZK 11.9 per piece.
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