Abstract
The analysis of literature sources showed that gears are the most common types of mechanical gears. They are widely used in all branches of mechanical engineering, in particular in metal-cutting machines, cars, tractors, agricultural machines, etc. Among the many advantages of this type of gear, there are disadvantages, among which it is worth noting increased demands on precision manufacturing and Assembly, which results in a greater complexity of the collaborative process of finishing gears in view of their complicated shape and heavy-duty loads for contour and complex mode of interaction.
 This makes it particularly difficult to increase the durability when running gears. They require increased surface hardness, which is associated with small contact areas (in most cases-in line) and large specific loads. Even small distortions in this case lead to a significant complication of the process of their burn-in.
 The results of experimental studies have shown that for elimination of inaccuracies of form of details and errors of assembling mechanism expose to running-in which running- in of the surfaces take place. The most effective factor of acceleration of running-in is to use the combined processes at running- in surfaces. One of them is the electrochemical - mechanical running-in (ECMR)
Highlights
For the development of effective methods to improve the durability by eliminating micro geometrical deviations while running-mate details of components and machines' assemblies it is necessary to study the patterns of development of the area of the contact patch in Sк at running-in details from the initial contact to the maximum possible, taking into account the mode coupling parts and the value micro geometrical deviations
The aim of the work is to increase of formation efficiency of gears contact spot at electrochemicalmechanical running-in
According to [1], the loads in any mating of parts in the running-in process must correspond to the contact loads, which is especially important for the initial contact moment in the mating
Summary
For the development of effective methods to improve the durability by eliminating micro geometrical deviations while running-mate details of components and machines' assemblies it is necessary to study the patterns of development of the area of the contact patch in Sк at running-in details from the initial contact to the maximum possible, taking into account the mode coupling parts and the value micro geometrical deviations. Many researchers associate the solution of the problem of increasing the durability of various mating of nodes and assemblies with the processes occurring in them, characteristic of this interface, and the specifics of its failures. Increasing the duration of lapping is leading to distortion of the teeth's profile. A special allowance for lapping is usually not left and only at very small tolerances on the thickness of the teeth it is provided with a size of not more than 0,03 mm
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