|
|
Manufacturing of chain wheel for BMX bike
Figar, Erik ; Peterková, Eva (referee) ; Řiháček, Jan (advisor)
The thesis deals with the design of suitable technology for the production of BMX sprocket made of sheet metal 14 220.3, with a thickness of 4 mm. The production series is 200,000 units per year. Following the analysis of different production options, fine-blanking technology has been chosen as the most suitable precision cutting technology. A technological proposal has been created, which includes the choice of a suitable appropriate blank (sheet metal 4x2000x6000 mm) as well as the design of a shearing tool with the corresponding drawing documentation of its selected parts. On the basis of the calculated values, HFA 4500 plus hydraulic triple action press manufactured by the Feintool company was selected as a production machine. In the last stage, technical and economic assessment of the efficiency of this production was performed.
|
|
|
The production of cover blowers
Soldán, Josef ; Řiháček, Jan (referee) ; Císařová, Michaela (advisor)
This thesis is focused on the production of cower blowers from steel sheet 1.4541. As the best method for producing of this part was selected bending in the bending press. This choice was based on literature review, geometry of bended part and amount of production order. For each bend was calculated bending force, position of the neutral layer and size of the springback. Bending tools and bending press were chosen depending on the biggest bending force from the bends. Developed length of the part was calculated by the position of the neutral layer. All of the above calculations were numericaly verified by the ANSYS simulation software for the last bend.
|
|
|
Manufacturing of swivel pin
Vávra, Roman ; Šlais, Miroslav (referee) ; Řiháček, Jan (advisor)
The thesis deals with the design of a suitable technology for serial production of a pin. The component material is structural steel 11,320 5R. Due to the series production and material savings, the molding technology was chosen to be cold. For production, the CM 4-5 ECO HATEBUR process press was designed with a nominal force of 1 700 kN. Progressive tool and drawing documentation of tools for the final operation were also designed. The tool load was verified by manual calculation, and the finite element method was calculated to heat the formed blank due to molding.
|
|
|
Cutting as a finishing operation
Bednář, Martin ; Řiháček, Jan (referee) ; Císařová, Michaela (advisor)
The project elaborated design of technology production of the cutting by shaving operation. The component is made from sheet iron 11 321. Pursuant to of the literary pursuit a problem of the shaving and calculation was designed two operations of shaving. Recommended production choice was tool with nominal cutting force 173 kN in first operation and 68 kN in second operation.
|
|
|
Manufacturing of chain wheel for motorcycle
Šarocký, Robert ; Peterková, Eva (referee) ; Řiháček, Jan (advisor)
The aim of this thesis was to propose a suitable technology for the construction process of a chain wheel, which is one of the parts of the drivetrain of a motorcycle. The production series was 200 000 pieces per year. An analysis of several different construction processes was carried out and the process chosen as the most suitable was exact cutting with compression edge. The material of the product was a metal plate (8 x 1000 x 2000) mm 14 220.3, with the width 8 mm.Furthermore, a proposal of a cutting tool was conducted with drawn documentation. Based on the calculation of the required powers the manufacturing machine was chosen, more particularly the three way hydraulic press Feintool HFA 8800 plus. In the final phase, an assessment focused on the effectiveness of the production process was carried out with focus on both the technical and the economic standpoint.
|
|
|
The Production of the Components on the Press Brake Machine
Zahradníček, Lukáš ; Řiháček, Jan (referee) ; Peterková, Eva (advisor)
The project elaborated overview of the production technology of the components on the press brake machines. It is based on study of theoretical pricniples in literature and modern practical instances as added value. It discussed about bending technology in general, about its priciple and parameters. Then there is overview of most used methods of bending at press brake. bending tools, its process of production and tool clamping. The main emphasis is placed on press brake machines. There are discussed the main types of machines, structure of machine and last but not least there are presented selected world manufaturers of press brake machines. For a better idea there is showed production of particular component in manufacturing plant in the end. Acquisition of the project is in simple description of press bending technology and way of work on press brake machines. The useful trasfer may be for example to education.
|
|
|
Manufacturing of body latch
Braško, Zdenko ; Řiháček, Jan (referee) ; Podaný, Kamil (advisor)
Bachelor thesis is concerned with the design of production a body latch. Latch is used for engaging the door in a closed position. Component is made of structural steel 11 321 with a thickness 1 mm. The batch size is 35,000 pcs/ year. As the optimal production technology was chosen method of rolling cutting with shallow drawing in the combinated tool. Technological and constructional calculations were maked and tool was designed by it. For this tool has been created drawings. Of the total work force requirements and for the production of components was set press machine LEN 40 C. The cost of production of one piece were determined to 10,57 CZK / pc. Production becomes profitable for a series of more than 25 083 pcs / year.
|
|
|
Optimalization of parts bonded by hot crimping
Liškář, Ladislav ; Řiháček, Jan (referee) ; Lidmila, Zdeněk (advisor)
The thesis describes the procedure for verifying the conceptual ideas of the company. Design and production of prototypes, testing and evaluation, quantifying savings. Two variants of crimped bond were chosen. For each was length of shaft changed to three and four crimped grooves. These prototypes were tested in two static and one dynamic tests. Recommendation for company is continue with other phases of development for shaft with four grooves.
|
|
|
System for evaluation of upsetting test
Janečka, Dominik ; Podaný, Kamil (referee) ; Řiháček, Jan (advisor)
The thesis deals with the proposal of measurement system for evaluating upsetting test. The variables for evaluating the test are obtained by using sensors of measuring devices. The necessary magnitudes are force, track and temperature. For this purpose they were used sensors HBM R6C, HBM W50 and thermocouple type K. The sensor signals are amplified by measuring modules Dewetron and transferred to a PC by measuring card NI USB-6009. There are further processed by evaluation program DEWESoft 6.5. In a final part are performed a verification measurements to assess system function.
|
|
|
The Manufacturing of the Brake Disk by Fineblanking Technology
Kantor, Miroslav ; Řiháček, Jan (referee) ; Peterková, Eva (advisor)
The purpose of the diploma thesis is to design a manufacturing technology of the Brake Disk. The component is made of stainless steel 17 023 (X30Cr13). The blank is 2 mm thick sheet metal. Within the literary study the comparison of the possible technologies of manufacturing has been carried out. With respect to the batch size 200 000 pieces the fineblanking technology has been chosen. For the manufacturing has been chosen HFA 700 press. The major point of diploma thesis is to design a cutting tool and create a drawing documentation. The part of the project is the technical and economical evaluation of the designed manufacturing process.
|
guest ::
RSS feed.