ANALYSIS OF THE POSSIBILITY AND PROSPECTS OF USING THE BLASTING METHOD FOR CLEANING THE CLOSED BLADES OF TURBINE MONO WHEELS MANUFACTURED BY THE ADDITIVE METHOD OF THE SLM TECHNOLOGY
Abstract
The introduction of three-dimensional printing is an important stage in the development of the rocket and space industry. Additive production is considered as an alternative to traditional processing methods such as milling, stamping and casting. The results of this work were obtained experimentally and can be used in the development of real technological processes in the enterprise. Additive technologies allow to simplify and speed up the manufacturing process, but the problem of ensuring the required quality and roughness of the treated surface of the blades remains relevant. The reason for this is the difficult, and in some cases impossible, access to traditional cutting tools, such as end or spherical cutters. This article presents the results of scientific-analytical and experimental work, the main task of which was to assess the possibilities and prospects of using existing methods of finishing closed-type monocycles made by 3D-printing using SLM technology (Selective Laser Melting).The question of the possibility of using the blasting method to obtain the required surface quality and shape of the working profile of the blades was addressed. The object of the study is the surface treatment of the impeller of a closed type turbine (with a bandage). This type of construction is the most rational in terms of structural strength, manufacturability of gas-dynamic characteristics and has a higher level of efficiency compared to open-type turbines. This work is an urgent task for finding promising and alternative methods of surface treatment of closed turbine blades obtained by the additive method.
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