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Using of elastomers in forming technology
Drda, Ondřej ; Peterková, Eva (referee) ; Podaný, Kamil (advisor)
The purpose of this graduation thesis is to investigate and summarize the usage of elastomeric forming, which represent a uniqe method of cold forming in which the elastomeric pads overtake the function of the solid part in a forming machine. The most distinctive feature of elastomeric forming is its low price and a wide range of usage. It can be applied also to metal materials with finished surface. However the major disadvantage of this method is the need of an enormous pressing force. The elastomeric pads fall into two main categories – the open and closed ones. The open type is mostly used for metal sheets bending and roll bending, whereas the closed type finds even greater usage in processes like shearing, drawing (Guerin stamping), deep drawing (Marform, Maslenikov technique) and radial expanding. The thesis further describes the elastomers´ technical features, deformation withstandings, forming principles and their general usage.
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Forming device integration into production line
Šabata, Radek ; Dvořák, Milan (referee) ; Štroner, Marek (advisor)
ŠABATA Radek: Forming device integration into production line Due to raising need for flexible exhaust hoses made by WESTFALIA Metal s.r.o. is com-ing closer to its manufacturing limits of inner ending rings. Finding suitable layout and technological solution is needed. Inner ring is made from scroll sheet steel 17 240. Sheet is roll bended, WIG welded and formed into final shape. Problem is press PYE 160 which is used for other company needs. Replacement of this press with new machine spe-cialized for this part is solution. Thanks to its specialization it will be smaller. Two main technology variants were considered - radial expanding and thorn expanding. Radial ex-panding is not suitable for this simple ring and forming force is bigger so thorn expanding is recommended.
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The Tool for a Radial Expanding of Tubes by Liquid
Horák, Michal ; Lidmila, Zdeněk (referee) ; Peterková, Eva (advisor)
The submitted diploma thesis is focused on problematic of a radial expanding of tubes. In the first part of thesis, there is a summary of possible theoretical formulas for determining the stress-strain material parameters for biaxial bulging test of tube by liquid. Also there are showed several options for testing tools used in research abroad. The work also contains technological and control calculations for the selected test sample from the tube of steel 17 240 (1.4301). At the end of thesis, there are key points for tool design and there is also presented the proposed the test tool for a radial expanding of test sample of tube to the free space and with firmly fixed the ends of tube in the tool.
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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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Utilization liquid in tubes shaping
Vilda, Dalibor ; Císařová, Michaela (referee) ; Podaný, Kamil (advisor)
This publication elaborates on work about technologies, which utilize liquid as forming media in tubes shaping. There is a description of methods like low-pressure, high-pressure and pressure-sequence hydroforming and radial expanding by a liquid. A part of the work is also evaluation of individual methods, their advantages and disadvantages and examples of use in a practice.
|
|
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Using of elastomers in forming technology
Drda, Ondřej ; Peterková, Eva (referee) ; Podaný, Kamil (advisor)
The purpose of this graduation thesis is to investigate and summarize the usage of elastomeric forming, which represent a uniqe method of cold forming in which the elastomeric pads overtake the function of the solid part in a forming machine. The most distinctive feature of elastomeric forming is its low price and a wide range of usage. It can be applied also to metal materials with finished surface. However the major disadvantage of this method is the need of an enormous pressing force. The elastomeric pads fall into two main categories – the open and closed ones. The open type is mostly used for metal sheets bending and roll bending, whereas the closed type finds even greater usage in processes like shearing, drawing (Guerin stamping), deep drawing (Marform, Maslenikov technique) and radial expanding. The thesis further describes the elastomers´ technical features, deformation withstandings, forming principles and their general usage.
|
|
|
The Tool for a Radial Expanding of Tubes by Liquid
Horák, Michal ; Lidmila, Zdeněk (referee) ; Peterková, Eva (advisor)
The submitted diploma thesis is focused on problematic of a radial expanding of tubes. In the first part of thesis, there is a summary of possible theoretical formulas for determining the stress-strain material parameters for biaxial bulging test of tube by liquid. Also there are showed several options for testing tools used in research abroad. The work also contains technological and control calculations for the selected test sample from the tube of steel 17 240 (1.4301). At the end of thesis, there are key points for tool design and there is also presented the proposed the test tool for a radial expanding of test sample of tube to the free space and with firmly fixed the ends of tube in the tool.
|
|
|
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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|
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Utilization liquid in tubes shaping
Vilda, Dalibor ; Císařová, Michaela (referee) ; Podaný, Kamil (advisor)
This publication elaborates on work about technologies, which utilize liquid as forming media in tubes shaping. There is a description of methods like low-pressure, high-pressure and pressure-sequence hydroforming and radial expanding by a liquid. A part of the work is also evaluation of individual methods, their advantages and disadvantages and examples of use in a practice.
|
|
|
Forming device integration into production line
Šabata, Radek ; Dvořák, Milan (referee) ; Štroner, Marek (advisor)
ŠABATA Radek: Forming device integration into production line Due to raising need for flexible exhaust hoses made by WESTFALIA Metal s.r.o. is com-ing closer to its manufacturing limits of inner ending rings. Finding suitable layout and technological solution is needed. Inner ring is made from scroll sheet steel 17 240. Sheet is roll bended, WIG welded and formed into final shape. Problem is press PYE 160 which is used for other company needs. Replacement of this press with new machine spe-cialized for this part is solution. Thanks to its specialization it will be smaller. Two main technology variants were considered - radial expanding and thorn expanding. Radial ex-panding is not suitable for this simple ring and forming force is bigger so thorn expanding is recommended.
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