This work deals with non-contact measurement of surface temperatures. The aim of the first part is to explain basic terms, principles and ways of measuring temperature. Furthermore, there is an overview of thermal imagining cameras usable in industry. In the practical part there is a theoretically suggested experiment, which monitors the dependence of the surface temperature on the size of the cross-section of the workpiece during the turning under unchanged cutting conditions. Experimental measurements are executed with using thermocamera ThermaCAM SC 200 and they are evaluated in software called Researcher.

This thesis deals with the wear of indexable insert during machining railway axles in BONATRAS GROUP Inc. Thesis describes the technological process of this company and basic types of wear inserts. It also assesses the development of tool wear when cutting speed is increase by 10% and also to compare the wear inserts from different suppliers for that company. This work mainly deals with development of ridge wear of the cutting tool depending on the pressure of coolant.

The aim of the paper was to proposed new manufacturing technology. In the beginning, the diploma thesis deals with the technological aspects of manufacturing hydraulic valve. Subsequently is described the usage of manufacturing technology. The existing production process is analysed in detail. Better efficiency was achieved by using hard turning instead grinding technology. Economic evaluation is described in the end of thesis, where is efficiency of hard turning technology supported by calculations.

The master thesis is about creating technological process of production of a rotational part. The specified part is crankshaft and it is a new contract in manufacturing company. The goal is to design a CNC technology and verify the technology in production. There are used turning, milling and drilling methods in the machining process. There is a hexagon presssed in to the part, which requires a special preparation. Production requires the involvement of co-operation for nitriding surface treatment of the shaft. In the end a selling price is determined.

The contens of master thesis is theoretical analysis of vibrations during turning and possibillity to eliminate them, measure dynamic compliance and modal paramteters. The goal of experimental part is to determine the effect of material and type of clamping for three shafts at natural frequency, mode shape and dynamic compliance. Using these results we can optimized cutting parameters and to better overcome vibration during machining.

This master’s thesis deals with production of grinding roller driveshaft in Bühler CZ s.r.o. in Žamberk. In the first part the attention is focused on analysis of current technology. Following chapters of thesis are focused on innovations to existing production technology, for example a technological test, CNC programming realization, machine times calculations or creating of technical documentation to ensure production of rotating part. The last chapter of the thesis focuses on economical assessment.

My diploma thesis solves project of grinding angle box unit for vertical boring and turning machine which extends technological possibilities of vertical lathe SKD 40/47D. The submitter ČKD Blansko Holding, a.s. demanded to work out assembly drawing, 3 construction drawings and necessary calculations. Spindle drive of grinding unit is implemeted by the aid of engine which is deposit in the sliding machine. Chucking equipment is realised with standart system which is used by ČKD Blansko.

This diploma thesis solves grinding box unit for vertical boring and turning machine for ČKD Blansko. For fixing is used standard fixing system used in ČKD Blansko. Spindle is drived by engine placed in slide ram. Engine can be also used for milling box unit. Grinding box unit must stand operating load. Using of automatic balancing system is also solved in this project.

The master thesis deals with the use of the Sinumerik 840D control system for programming of blanks for gear manufacturing. The first part of the thesis is focused on analysis of machinability of the material followed by experimental testing of machinability of material 16MnCr5. An experimental evaluation of the effect of cutting parameters was carried out to force load of semi roughing cutting tool CoroTurn 300. In the next part of the thesis there is a technical documentation of gearing parts, for which a NC program is created. Finally, the possibilities of using the Sinumerik 840D control system are listed and demonstrated by workshop-oriented programming of the considered components for the SP 280 SY turning center.

abstract: When consumers find that something critically out of the ordinary has occurred, they direct attention to evaluate such a critical incident more closely. The results of this evaluation may put consumers on a switching path or it might lead them to engage in unfavorable behaviors from the perspective of the organization, such as engaging in negative word-or-mouth online. The negative consequences of some product (goods or services) failures go beyond simple product attribute defects, leading customers to terminate the relationship with the organization. This dissertation, which is composed of three essays, investigates how consumers engage in negative word-of-mouth on social media channels in response to their various product failures and explores an important relationship event of betrayal, which can be triggered by certain product failures. It investigates how betrayal is perceived by customers and influences a range of their behaviors across business-to-consumer and business-to-business contexts. / Dissertation/Thesis / Doctoral Dissertation Business Administration 2019