Изучен процесс нарезания резьбы в отверстиях сверхмалого диаметра (d ≤ 1,4 мм). Показано, что в процессе обработки существует большая вероятность поломки режущего инструмента, которая приводит к возникновению брака. Установлено влияние конструкторских особенностей отверстия на поломку инструмента и степень его изнашива-ния. Показано влияние СОТС и анодномеханической обработки (АМО) на надёжность процесса резьбонарезания. Ключевые слова: нарезание резьбы, сверхмалый диаметр, надёжность процесса, количество отказов, СОТС, АМО.

Приведены результаты исследования влияния некоторых технологических режимов матирования на свойства получаемой поверхности. Ключевые слова: обработка свободным абразивом, шероховатость поверхности, матирование.

ОСОБЕННОСТИ ФОРМИРОВАНИЯ ШЕРОХОВАТОСТИ ПОВЕРХНОСТИ ПРИ АНОДНО-МЕХАНИЧЕСКОЙ ОБРАБОТКЕПредставлены различные технологические показатели эффективности протекания процесса формообразования в условиях фрезерования алю-миния и его сплавов. Рассмотрены возможности обеспечения качества получаемой поверхности при обработке и снижения интенсивности нежелатель-ных динамических и тепловых воздействий на тех-нологическую систему и процессы формообразова-ния в современных условиях обрабатывающей промышленности.Ключевые слова: алюминий, фрезерование, формообразование, чистовая обработка, шерохова-тость, комбинированная обработка, параметры ка-чества, АМО.M.Yu. Kulikov, V.E. Inozemtsev, A.A. Bocharov, Myo Naing Oo PECULIARITIES IN SURFACE ROUGHNESS FORMATION AT ANODIC-MECHANICAL TREATMENTThe solution of problems belonging to assurance of high quality and accuracy of a surface at machining in mechanical engineering was always one of the primary and priority tasks. A considerable part of all technological operations connected with shaping falls at machining. At that the operations connected with milling occupy a rather large share of all processes of machining in a variety of production branches. In the course of the study of shaping and aspects of quality formation at machining it is established that anodicmechanical operation can promote effectively the quality increase of aluminum surface and its alloys at turning. Unlike turning at milling it is necessary to take into account other character of the interaction of a cutter with a surface worked and also the existence of some cutting edges which can contribute to the roughness growth at the macro-level.A considerable influence upon quality of a surface under formation at aluminum alloy anodic milling have: materials of a work piece and a tool, technical and geometrical parameters of a tool, a milling direction, scale formation, a magnitude of current and voltage in the area of a contact of a tool and a work piece, the availability and a type of cutting emulsion (or a mixture and concentration of electrolyte), and also a way of its feed.

The article describes the technology solution provides the desired surface quality of products from aluminum alloys during their machining. Serves processing method, which is a complex effect on the treated surface of the blade of the tool and electroplating processes.

The purpose of the work consists in the investi-gation of the process of the properties required and shaping control possibilities obtaining by a surface. It is well-known that a shaping process affects a factor quantity particularly in the course of complex methods of processing. And at the same time a consi-derably important factor is also a preliminary state of a surface since a final result of processing depends upon a totality of all factors. The time alignment of anode dissolution process with a blade treatment and a chem-ical reaction process on the surface under working dur-ing processing allows forming different conditions for shaping. The study of machining conditions impact upon quality of a surface layer in parts allows defining optimum cutting parameters and increasing operation properties of many parts. Conclusion: surface quality is affected not only by basic factors such as tool geometry, kinematics of a tool displacement, oscillations impact due to the level of technological system rigidity, plastic deformations in a cutting area conditioned on force effects of a cut-ting process, tool surface roughness, cutting speed, electrolyte concentration and electric circuit voltage, processing time and a temperature in a cutting area, but also physical-mechanical properties of a near-surface layer up to finishing, and also an alignment degree of different shaping methods and their impact intensity.