Features of organization of ship repair using additive technologies
The paper presents the concept of organizing ship repairs directly on board while the ship is on the way using additive technologies, which allows to reduce the time to eliminate breakdowns and reduce the cost of organizing transport logistics for the delivery of the necessary parts from the shore. The features of the implementation of the production of spare parts to be replaced using 3D printing are revealed. The impact of additive technologies on technical and economic indicators in the process of organizing ship repair is assessed. The basic modern consumables used in the manufacture of parts on a 3d printer are considered. An analytical systematization of their applicability to various types of objects of marine engineering of shipbuilding and ship-repair facilities was carried out. Each material was considered both from the standpoint of their physical and mechanical, and chemical properties, and in relation to the features of the shipbuilding industry. Also, the paper presents an analysis of various methods for calculating the strength and durability of final products created by means of three-dimensional printing. The calculation of the easiest method for assessing strength, which gives key information about the behavior of a part manufactured on a 3D printer under the action of a mechanical load, is selected and presented.