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Pulley cheek manufacturing
Habr, Stanislav ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
This bachelor thesis focuses on the technology of follow cutting. The purpose is to project a progressive press tool for the given component of a pulley cheek made of a stainless steel sheet with the thickness of 1 mm. The optimal variety of component production was set on the basis of the theoretical study in the first part of the project. The progressive press tool uses standardized components and it is realized by using the usual post which is fixed to the compressing machine LEN 63 C (producer TOMA Industries Ltd.). At the end of the thesis, there is an economic assessment of production of the annual batch of 200 000 pcs.
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Manufacturing of chain wheel for mountain bike
Habr, Stanislav ; Peterková, Eva (referee) ; Podaný, Kamil (advisor)
HABR Stanislav: Manufacturing of chain wheel for mountain bike The goal is to design components of chain wheel for mountain bike. It will be made of structural steel. The variant was chosen the most optimal production through precise cutting edge of pushing the system hard punch tool – movable retainer. According to the calculations and dimensions were selected from company press Feintool. The economic evaluation is the annual dose 600000 pcs fixed price of one component of 11,88 CZK.
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Compression of ecaped titanium micro-pillars for two principal orientations
Vokoun, David ; Maňák, Jan ; Tesař, Karel ; Habr, Stanislav
The thermomechanical processing by equal-channel angular pressing (ECAP) is used for certain metals and alloys in order to make their structure fine and to increase material strength. In the previous study done at our institute, grade 2 titanium was successfully processed using four consecutive route A passes via a 90° ECAP die with high backpressure at room temperature. Orientation dependence of compressive and tensile loading of ECAPed titanium samples was demonstrated at macro-scale. However, scarce attention has been paid so far to the mechanical behavior of ECAPed titanium samples at micro-scale. In the present study, compression experiments on titanium micro-pillars, fabricated using focused ion beam, are carried out for two main directions in respect to preceding ECAP pressing (insert and extrusion directions). The purpose of this study is to discuss the orientation dependence of mechanical response during compression of the as-ECAPed titanium micro-pillars.
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Manufacturing of chain wheel for mountain bike
Habr, Stanislav ; Peterková, Eva (referee) ; Podaný, Kamil (advisor)
HABR Stanislav: Manufacturing of chain wheel for mountain bike The goal is to design components of chain wheel for mountain bike. It will be made of structural steel. The variant was chosen the most optimal production through precise cutting edge of pushing the system hard punch tool – movable retainer. According to the calculations and dimensions were selected from company press Feintool. The economic evaluation is the annual dose 600000 pcs fixed price of one component of 11,88 CZK.
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Pulley cheek manufacturing
Habr, Stanislav ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
This bachelor thesis focuses on the technology of follow cutting. The purpose is to project a progressive press tool for the given component of a pulley cheek made of a stainless steel sheet with the thickness of 1 mm. The optimal variety of component production was set on the basis of the theoretical study in the first part of the project. The progressive press tool uses standardized components and it is realized by using the usual post which is fixed to the compressing machine LEN 63 C (producer TOMA Industries Ltd.). At the end of the thesis, there is an economic assessment of production of the annual batch of 200 000 pcs.
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