International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

In this article, the objects of research are 40 pieces sleeves made from aluminum alloy 6080 and results were obtained from the measurement of the observed sign of inner cylindrical surface runout relative to the external one. The graphical visualizations of the analyzed data were made. A comparison is made between the amount of error obtained by two setting methods on a CNC lathe- in a universal self-centering chuck and between centers.

Processing of thin-walled parts with large dimensions in conditions of wide range production poses a number of technological problems. One of the most important among them is the provision of alignment on both sides of the hole who passing through the opposite walls of the part. Is essential the alignment of the spindles while processing of the hole , if used for this purpose machining center with two horizontal spindles . In the publication is presented research about possibilities to solve the problem by controlling of spindles alignment. For this purpose are carried out contact coordinate measurements of the hole in one spindle using 3D touch probe which is fixed in the other spindle.

Aluminum nanostructured coatings are the promising alternatives to transparent semiconductors or metals. In this paper we describe the fabrication of these coatings by electrochemical anodization of aluminum deposited by magnetron sputtering on a glass substrate. The process of anodization is strictly controlled by process parameters followed by selective chemical etching of aluminum oxide. Optical transmittance and surface resistance depend on the mesh dimensions of Al nanostructured coatings and have been investigated theoretically and experimentally.