National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Welding of pipes made of CrMo steel
Matějek, Martin ; Sigmund, Marián (referee) ; Kubíček, Jaroslav (advisor)
The aim of this diploma thesis is to compare mechanical properties of welded joints on tubes from 32x2 mm. Tubes are made from 25CrMo4 steel, which is used for production of racing kart chassis. The steel has a tensile strength of Rm = 800 MPa and up to 1200 MPa after refinement. For welding of samples are used technologies MAG and TIG.
Verification of production technology of pneumatic mechanism for automatic weapon FN Minimi M249
Matějek, Martin ; Kalivoda, Milan (referee) ; Jaroš, Aleš (advisor)
The bachelor thesis is focused on the production of a part of the pneumatic mechanism of the automatic weapon simulator Minimi FN M249 from the design of the semi-finished product to the finished part, including the determining of further surface treatment. The part is made in piece production from two materials, the properties of which are further compared. This work is focused on the design of the technology of production of a component of steel material, the second variant is the production of a component of aluminum alloy. The main production technology here represents milling, the material being divided into a band saw. The bachelor thesis also contains the technological process of production.

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3 Matějek, Marek
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