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The textbook provides the main stages, sequence and general methodology for the development of technological processes of mechanical processing of parts and assembly of mechanical engineering products. In the main sections, after the presentation of the elements of the theory, students are assigned project tasks. Many sections are accompanied by examples of their specific implementation. It is compiled to help students of engineering specialties of full - time and part-time education, mastering the methodology of technological design and performing course and diploma projects and works.

In the paper there is presented a procedure for the life testing of a hinge pivot in a dump car. This unit is one of the most significant elements in the design on which depends traffic safety. As a method for the estimate of reliability and life of the element under consideration there are chosen accelerated life tests allowing the definition of fatigue strength characteristics using a limited number of samples at the specified forced mode. Particular attention is paid to the circuit of sample installation on a plant, to the circuit of loading, to the estimate and substantiation of load values at the known loading range of the hinge pivot unit corresponding to speed motion distribution of a car under operation. The analysis of acting loads in operation is carried out, a total damaging impact during car operation and an equivalent force of sample loading are defined identical by a damaging impact to an acting loading range of a sample under testing are defined. According to the investigation results there is developed and approbated successfully a new procedure for the fulfillment of bench tests allowing more complete and reliable estimates of hinge pivot unit life for a dump car in comparison with computational methods.

On the basis of a new approach to restoring the accuracy of parts with uncertain bases, mobile technologies for recovering the accuracy of large-sized parts without their dismantling in the workplace have been developed, which significantly reduces the cost of repairs. Much of the in-formation is devoted to the issue of the layout and design of the plug-in machine modules, al-lowing the implementation of mobile technologies. The design of machine modules is given. The new technology is consid-ered with reference to the equipment of cement plants (bandages and rollers of cement kilns). The technology can be extend-ed to large-sized parts of equip-ment of other industries.

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