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Manufacturing of the turnbuckle of chain
Ondráček, Pavel ; Jopek, Miroslav (referee) ; Peterková, Eva (advisor)
The diploma thesis is focused on the design of the production technology of a chain tensioner. It is a spatial component made of 1.5 mm thick steel sheet with galvanized surface treatment. DC01 steel was selected as the most suitable material. When considering the production technologies, the production in a combined process tool was selected as the most efficient one for the series of 20,000 pieces. Regarding the tool of more complex design including springs, the production will be done in four steps on the LEN 63 eccentric press with accessories used for feeding and unwinding the metal sheet belt from the coil. The final price of the chain tensioner including the bolt and two nuts is 26 CZK.
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The Antenna Bracket Manufacturing by a Compound Tool
Lipka, Ondřej ; Lidmila, Zdeněk (referee) ; Peterková, Eva (advisor)
This master’s thesis focuses on the concept of large-lot manufacturing of sheet metal component made from DC01 steel. Based on forethought, the method of compound tool combining shearing and bending was chosen. The theoretical part analyses used technologies in detail. In the next part specific course of manufacture was created and supplied with technological calculations. Based on all needed facts the tool was designed and after that forming machine, LDC 160 crank press, was chosen. At the end the usability of designed concept was confirmed with economical calculations.
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Production of the Folding meter lock
Václavek, Petr ; Lidmila, Zdeněk (referee) ; Žák, Ladislav (advisor)
The thesis proposes a concept of manufacturing the folding meter lock. The part is made from DC01+LC steel of 0,3 mm thickness. The series size is 100 000 pcs/year. A forming in a progressive combination tool combining shearing, bending and stamping was chosen for the production, based on the analysis of possible solutions. The tool, designed on the basis of literary research of used technologies, produces the part in eleven steps exerting maximal force of 38,5 kN. The production will take place on an eccentric press LEN 40 C. The market price of 3,38 Kč for one piece was established by the technical and economic evaluation.
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Manufacturing of a Component by Using Hydroforming Technology and Its Optimization
Harant, Martin ; Peterková, Eva (referee) ; Řiháček, Jan (advisor)
The project deals with analysis and optimization of the geometry of the stamped part produced by the pillow hydroforming. The blank consists of two sheets of steel DC01, which is welded by laser beam. The forming process can cause excessive thinning and cracking of the part. By evaluation of mechanical tests is created material model, which is the basis for numerical simulation created in software PAM-STAMP. The outputs are analysis which provide information about critical points, failure pressure, limiting deformations and prediction of springback. Validity of the numerical simulation is verified by comparison with the experimentally obtained data. The comparative criterions are the failure pressure and the material thickness at various locations. Based on the results of the numerical simulation, the optimization of the geometry is created. The optimization uses different values of radius at the crack point.
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Production of casing
Hájek, Pavel ; Podaný, Kamil (referee) ; Lidmila, Zdeněk (advisor)
This master’s project describes a proposal for manufacturing technology of a horizontal boring machine case. This case is manufactured by HESTEGO a.s. from a DC01 steel sheet, which is 2 mm thick and its production series is 200 pieces a year. Punching and bending were chosen as the most suitable methods from the considered manufacturing technologies. The theoretical part of the thesis includes a study of the chosen manufacturing technologies. Based on the analysis of the technological calculations and the available tools in the manufacturing company, a technological procedure was designed and these machines were chosen: punching machine TruPunch 5000 a servo-electronic press brake SAFAN E – BRAKE 100–3100. Technical and economical evaluation is also included in the proposal.
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Part Manufacturing by Using Hydroforming and Its Optimization
Chrz, Jan ; Jopek, Miroslav (referee) ; Řiháček, Jan (advisor)
The thesis presents an analysis and optimization of the manufacturing process of a part using the technology of parallel hydroforming. Two circular blanks made of DC01 steel with a thickness of 1 mm serve as a semi-manufactured part. In one of the blanks, the supply of the forming medium is constructed using Flowdrill technology. Subsequently, the two blanks are laser welded together and then formed. Numerical simulation using PAM-STAMP software was used to analyse the manufacturing process. This analysis provided information on wall thinning, deformation size, critical points on the product and springback. The numerical simulation was verified on the basis of comparison with an experiment. The criterion for verification was the course of the thickness of the part. Based on the results of the simulation, an optimization is performed in the thesis. It consists in determining the minimum required pressure of the forming medium for pressing the part, particularly for different distances between the two formed sheets.
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Design of lighting cover production
Bahula, Jan ; Žák, Ladislav (referee) ; Podaný, Kamil (advisor)
The project elaborated design of technology production of the lighting cover – rotating extract from the deep drawing sheet iron DC01 0,5 mm thick. Pursuant to analyses of production and calculation was designed drawing in conventional instrument with holder in one operation and the cup is being wiped by the die. The drawing instrument make use of standardised and construction components and it is solving forms of customary stool clamped by clamps on the hydraulic press CUPS 40 DEU, with nominal tensile force 400 kN. Drawing punch and drawing die are produced from alloyed instrumental steel 19 436.9.
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Production concept of adjustable holder
Slavík, Tomáš ; Řiháček, Jan (referee) ; Císařová, Michaela (advisor)
The discussed issue was the production of the body of the adjustable universal holder for license plates, blinkers, and reflectors for Yamaha motorcycles. The material chosen for the production of the component was DC01 steel with a thickness of 3 mm and the size of the series is 120 000 pieces per year. After evaluating considered production variants, it was decided that the part will be made in compound tool that combine shearing and bending operations. The part will be produced by four shearing operations, three inter-shearing operations, one bending operation and by shearing the finished component from the sheet metal strip. Sheet metal coil was selected as the semi-finished product, with a material usage rate of 51,46%. Based on technological calculations, it was decided that the eccentric press DM400 from Formetal will be used for production. The tool design with a spring floating guide was chosen and his parameters were derived from previous calculations and the selected production process.
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Production of a clamp
Svoboda, Petr ; Forejt, Milan (referee) ; Podaný, Kamil (advisor)
The thesis presents a proposal for the production technology of the clamp in the company FERRUM s.r.o. It is used to connect floor grates to the supporting structure. It is manufactured from 2 mm thick DC01 sheet metal in a series of 3,500 pieces per month with subsequent surface treatment in the form of hot-dip galvanizing. From the proposed production possibilities, the technology of shearing and bending in a combined tool was chosen. Production takes place in four steps, in the first the outer contour is trimmed, in the second the short arms are bent, in the third the hole for the screw is cut, in the last the long arm is bent, and the part is separated from the rest of the blank. The design of the tool has been developed considering the production capabilities of the company's machining centre. These include turning, milling, drilling and grinding. The production requires a forming force of 387 kN and will be carried out on a LEN 63 C eccentric press located in the company's machine park.
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Production concept of wall mounting bracket
Tesař, Michal ; Štroner, Marek (referee) ; Císařová, Michaela (advisor)
The thesis deals with the solution of the design of the production of a holder for compact switchgear cabinets. The production series was set at 400,000 pcs/year. The part will be made from DC01 steel with a thickness of 2 mm. The equivalent is steel 11 321. Of the possible production variants, the technology of the progressive forming tool was chosen. The arrangement of the blank on the sheet metal strip is a two-row layout, where two components will be produced at once. A coil of sheet metal with exact dimensions was chosen as the semifinished product. The material utilization coefficient is 80.18 %. The part is manufactured in 8 steps and the necessary technological and structural calculations were made for this variant. The total force to produce the part is 1,240 kN. The machine selected is an eccentric crank press from the company Formetal s.r.o., with the designation CC 160. After the actual production, the components will still be galvanized.
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