National Repository of Grey Literature 163 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Production of the "Cover" component
Král, Lukáš ; Ohnišťová, Petra (referee) ; Žák, Ladislav (advisor)
The thesis proposes the production design of a cover component used as a ventilator cover of a water pump. In compliance with the studied literature, the cover will be made from polypropylene using the injection moulding technology. Based on the technological calculations, it puts forward a complete double mould with a cold inlet. The design solution was verified by simulations of filling and cooling, and a suitable injection machine was selected as per the calculated parameters. Finally the thesis explores the possibility for defects and presents the technical-economic evaluation for the entire production.
Manufacture of furniture console
Andrle, David ; Kocich, Radim (referee) ; Žák, Ladislav (advisor)
The work focuses on designing a technology for the production of a furniture console. A sheet metal component made of steel 11 321 with a thickness of 1 mm was proposed, and it is manufactured in an annual series of 10,000 pieces. A literary study was conducted to develop the manufacturing technology for this component, which combines cutting and bending in a combined progressive tool. Technological calculations were performed to design the appropriate tool, and a suitable machine was selected based on the total forming force. As a forming machine, the eccentric press LEXN 100 C was chosen.
Proposal for the production of a two-component molding
Vašíček, Lukáš ; Ohnišťová, Petra (referee) ; Žák, Ladislav (advisor)
The thesis deals with the design of a technology for the production of two-component parts that are placed in the car body for the purpose of subsequent expansion, which results in sealing and soundproofing. The technology chosen for the production is plastic injection moulding. The components are made from PA66 and Teroson EV 6059 with a production run of 200 000 units. Before the actual design of the tool, the components were checked for manufacturability. An injection mould of frame concept with a multiplicity of 1+1 was designed for the production. Engel VC 1640/400, which has two injection units and a clamping force of 4000kN, was determined as a suitable machine based on calculations. On the basis of an economic evaluation, it was concluded that the price for one set of three left and three right parts is 22.9 CZK
Production of a headlight replica
Hanzelka, Jakub ; Císařová, Michaela (referee) ; Žák, Ladislav (advisor)
The thesis deals with the design of a headlight reflector production. The sheet thickness of DC04 material is 0,6 mm. Various technologies were evaluated, and hydromechanical deep drawing was chosen due to the complexity of the component shape. The semi-finished product will be a circular sheet with a radius of 117 mm, which will be cut out from metal sheets measuring 2500 x 1500 mm. The component will be manufactured in a single drawing operation. The total forming force is calculated 171 kN. Subsequently, a simulation of the drawing process was conducted, confirming the manufacturability of the part. The maximum forming force reached 226,6 kN. The ZH 30 press was chosen, and the tool design was proposed.
Design of production technology of the Cover
Jelínek, Jakub ; Ohnišťová, Petra (referee) ; Žák, Ladislav (advisor)
The thesis deals with the design of the production technology of the cap, the volume of which is 700 pieces, for use in low-voltage and high-voltage equipment, including switchboards, for the production of semi-crystalline plastic polyamide 6. The component will be injection moulded into a single layer mould, which will be composed of purchased normals from Meusburger. A KraussMaffei 110-380CX machine will be used for production, which will exert a clamping force of up to 1100kN. The economic evaluation showed that for the specified production run of 700 units, the cost of the part is 479,85 CZK, the price of one piece without the initial investment in the mould and without any depreciation is over 11 CZK.
Production of the Cartridge for stepper motor
Míka, Jiří ; Ohnišťová, Petra (referee) ; Žák, Ladislav (advisor)
The work deals with the production of the cartridge for stepper motor from the newly selected material polyamide PA66GF which contains 30% fiberglass. The change requires the choice of a new production technology, which is injection molding. For technological reasons, it was necessary to modify the 3D model of the part according to the chosen production method. After calculating the important technological parameters, the plastic injection mold was constructed. It is made as a quadruple with a hot runner system and a cold sub-distribution, the plastic injection mold also contains sliders for side actions. The Allrounder 420 C GOLDEN EDITION hydraulic injection molding machine with a clamping force of 1000 kN was chosen for the mold. At the end, a technical-economic evaluation and comparison of the costs for the production of one part is carried out. The necessary drawing documentation was also made for the work.
Manufacturing of the Oil Drain Tub
Hruška, Daniel ; Žák, Ladislav (referee) ; Řiháček, Jan (advisor)
The following thesis deals with the design of oil bath production by deep drawing of sheet metal. In the first part the thesis is focused on acquaintance and analysis of the proposed part. The thesis also deals with the issue of deep drawing of metal sheet. In the practical part of thesis is the design of production technology, technological calculations, the design of the drawing tool and the selection of suitable machine. The last part of the thesis is devoted to numerical simulations to verify the manufacturability of the part.
Production of the “ Hauling lug pawl“ component
Jansa, Slavomír ; Ohnišťová, Petra (referee) ; Žák, Ladislav (advisor)
This magister thesis focuses on possibilities of replacement of milled Hauling lug pawl by cheaper component made by MIM technology with additional chemical-thermal treatment. Two thirds of costs should be saved if application is fruitful. Despite huge mix of combinations of steel ASTM-A29-AISI 8620, ASTM-A29-AISI 4140 and chemical-thermal treatment, no combination was successful. Several series of samples have been created but not even the use of HIP and ARCOR technology helped to pass circuit breaker storage life tests. Successful application of MIM technology would require additional design changes or choice of different suitable part.
Verification of setting speed and building adhesion of PU adhesives depending on external conditions
Slatinská, Jana ; Žák, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
The company IFE a. S. (Knorr - Bremse) in Modřice needed to verify the curing process of glued joints with the used adhesive Sikaflex®-265. The aim was to find out whether a controlled environment is needed for curing and mainly find out influence of factors on the curing process and the velocity of building adhesion. The main factors that were investigated were temperature, humidity, the ratio of the Sikabooster® P-50 to the tested adhesive and the curing time. The result then shows which factors have an influence and which only minimal. The aim was also to verify the strength of the joint, which is stated by the manufacturer after a specific time. The impact on open technology time has not been measured.
Production of the component "Cable clamp"
Hráček, Josef ; Štroner, Marek (referee) ; Žák, Ladislav (advisor)
The bachelor thesis deals with the suggestion of a cable clamp bracket, which is used for fastening cables. The component is made from a stainless steel sheet X5CrNi18-10 with a thickness of 2 mm and manufacturing production 200 000 pieces per year. Through comparing the manufacturing options, the production based on a progressive combination tool was chosen. By considering the viability, setting the unrolled shape, placing the part on the strip, and choosing the coil as the semi-finished product, the manufacturing process, consisting of five steps, was selected. In accordance with manufacturing methods and, technological and construction calculation the tool was constructed. Eccentric press machine S 160 E, by Šmeral Brno a.s., was selected as suitable machine. Employing economical evaluation, the market value was set at 25 Kč, with a 42% margin. The turning point was set at 38 970 pieces.

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2 Žák, Luboš
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