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Proposal of a tool for radial expanding of axial symetrical components
Střílka, Vlastimil ; Forejt, Milan (referee) ; Samek, Radko (advisor)
STŘÍLKA VLASTIMIL, Proposal of a tool for radial expanding of axial symetrical components Diploma work, 5th year, School year 2008/2009, educational group 5O/61, FS VUT in Brno, Institute of Manufacturing Technology, department of forming, May 2009 An object of this diploma work is location suitable manufacturing proposal for production engaged part of form ring from materials 17 246 segments tool. As a half- finished product of this part will be use a weldment metal plate from materials 17 246.1, the used welding technology is butt weld by laser beam. Choice of suitable manufacturing variety will be made from more construction proposal tool. Appearance to financial costs, mode of radial expanding and so from aspekt functionality and next processing part. We choice variety NO. 3. I implemented calculation usefull forming power and process factor. I affixed to the dokument plan configuration choose variety.
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Bulk forming technology of piston of disk brake
Toman, Svatopluk ; Samek, Radko (referee) ; Forejt, Milan (advisor)
The project of Master’s thesis elaborated within engineering studies of branch 23-03-T002 proposes a technology of production of disk brake piston made of low-carbon steel EN C10E. Supposed production amount is 300 000 pieces per year. With knowledge of literary study on the theme of cold steel bulk forming, three variants of production technique were proposed. The chosen one, for which the technological and energy computations were accomplished, consists of two basic forming operations. For manufacture realization was selected three-stage automatic forming machine TPD 630 (manufacturer Šmeral Brno) with nominal forming output of 6 300 kN. As a material of extruding punch, tool-steel EN X100CrMoV5-1was chosen. For extruding dies was selected high speed steel HS 6-5-2 and its shrink ring is made of high quality steel 60WCrV8. Optimalization of tool properties was performed with specialized PC software.
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Design of bulk cold forming technology for bicycle part
Kubíček, Lubomír ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
The diploma thesis is dealt with a project of a new manufacture method of a bicycle´s part. The part is a brake drum, which is the necessary part of a free-running charge. In an intro-duction of the diploma thesis is described a nowdays manufacture technology and its deficiencies. According to the nowdays manufacture technology was designed a new one, which is based on a cold volumetric shanking. The shanked hemihedron is consequently shaped according to the current technology. After the operation of cold shaping an instrument is projected. The project of the shaping technology is filled up by the calculation of the essential parameters, including an arrangement of the instrument and the process. An economical evaluation of the new process of the brake drum is stated and its advantages and disadvantaged were selected.
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Sheet metal forming production of automobile frame top
Marák, Daniel ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
The project, which have been created within the framework study of engineering branch N2326, submit project technology process of pressing - part from micro-alloyed steel with higher yield point H 240 LA and proposal of tool design for its pressing. Technology process was designed in ten operations, base on literary studying of cold forming technology. Design of progressive die respects type of press machine, which is specified for production this part. Press KRUPP 400t disposes pressing force 4 000kN. Materials, used for design of tool, are in use by tool shops. Punches and punching dies are produced from steels 19 573, heat-treated according drawing documentation. Drawing punches and dies are produced from steel 19 552, hardened on 56+2HRc and coated by TiCN method.
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Bulk forming technology of conecting pin
Psica, Lukáš ; Dohnal, Ivo (referee) ; Forejt, Milan (advisor)
This work introduces the suggestion of connecting pin making by method of cold bulk forming technology of steel 11 320.5R particularly by cold extrusion and upsetting. Component will be produced by multistage cold forming TMP 12 of the nominal strength of 2,000 kN. Extrusion and upsetting die will be produced from tool steel 19 830. The sleeve for extrusion and compression die will be produced from tool steel 19 740. The work deals with the study of cold bulk forming, it submits the most effective suggestion which is advantageous from both technical and economic point of production.
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Bulk forming technology of shutting nut
Votavová, Jitka ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
VOTAVOVÁ Jitka: Bulk forming technology of shutting nut. The project elaborate in frame bachelor studies submit design technology of production shutting nut by means of bulk forming from stteel 11 320 5R CSN EN 10 204. Production sequence was proposed upon linear analyse of bulk forming especially to extrusion and upsetting. Technological calculations was made. Maschine was select automatic transfer press TPM12, nominal power 2000 kN (producer SMERAL Brno). Extruder will make from tool steel 19 436, clamp ring from tool steels 19 733 and extrusion die from sintered carbide SK65. Heat-treatment extruder and clamp ring according to drawing.
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Metal forming production of bush by cold extrusion.
Šimeček, Tomáš ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
ŠIMEČEK Tomáš: Metal forming production of bush by cold extrusion. The project elaborated in frame of bachelor study degree brings a proposal of step by step metal forming production of bush by cold extrusion. Workpiece is made of normalized circle-shaped bar using 12 050 steel. The step by step production is based on literary pursuit of volumetric forming and calculation and is designed into five steps containing cutting, pressing and extrusion. These operations will be done on multistage pressing automatic machine TPZK 25 manufactured by ŠMERAL Brno, plc. with nominal pressing force of 5MN. Semi-finished product is placed into tooling´s workspace with manipulator. Final part extraction is solved with ejector integrated in automatic machine. Tools are made of tool steel, extrusion punch is designed of 19 550.4 steel, extrusion die is designed of 19 436.4 steel and extrusion die´s band is designed of 19 733.4 steel. Tools are designed to be improved by hardening and drawing.
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Forming technology production of window hanger.
Štejnar, Radek ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
An objective of the bachelor’s thesis is the solution of forming technology production of window hanger by means of backward extrusion and elaboration of study concerning cold bulk forming. Required component is made of material ČSN 41 1320 5R and rounded chock with dimension of 14,6h9 - 25,3 mm is selected as semifinished product for production. Generally 2 alternatives of technology process were assessed whereas technological and strength calculations are executed utilizing computing support of TVÁŘENÍ and OPTIM97 software. Component is produced within 4 operations including cutting of wire. Multi-stage cold forming press TPZK 25 made by ŠMERAL a.s. Brno producer was chosen for designed technology. Production tools are made of high speed tool steel 19830.
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Material models for simulation of dynamic forming operations
Fiala, Zdeněk ; Forejt, Milan (referee) ; Šlais, Miroslav (advisor)
The work deals with basic information about material models for simulation of dynamic forming processes. It describes software based on the finite element method and its use for simulation of dynamical forming processes. Next it presents basic theories about mechanical behaviour of materials under dynamical loading conditions and thein evaluation. It compares constitutive equations which describe materiál behaviour depended ontemperature and strain rate.
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Production of metal gasket by follow-on blanking die.
Hondl, Jiří ; Dvořák, Milan (referee) ; Forejt, Milan (advisor)
HONDL Jiří: Production of metal gasket by follow-on blanking die. Final term paper elaborated as part of undergraduate studies in Program B 2341 Machine Engineering, presents design of technology for blanket formation of cutouts/parts made of Al-Mg-Si alloy with cold-process die stamping. A study of literature dealing with the process of step-by-step formation and the relevant calculation, it was decided to opt for tool cutting. The cutting tool comprises standardized components consisting of a regular stand that is mounted onto an eccentric tilting press LEN 25 – C with nominal power of 250 kN. The trimming punches and blades are made of tool steel 19 436.8, thermally treated according to drawing documentation.
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