A Technology for Producing the Small Vessel Hull by the Additive Manufacturing Methods

Abstract

The issues of the technological complex for manufacturing the hull of a small vessel obtained using additive manufacturing methods are considered in the paper. The purpose of the work is to study the emerging problems, issues, patterns, rules and norms of the process of 3D-printing the hull of a small vessel. The objectives of the paper include presentation of previously obtained calculated and experimental results for printing and assembling the ship hull; development of a method for assembling a hull using additive technology; comparative analysis of the labor intensity of manufacturing ship hulls using traditional and additive technologies; studying the issues of the slipway period of building the hull after completing printing work. The main methods for solving problems include well-known fundamentals in the technology of shipbuilding, ship repair, optimization of ships, technical and economic analysis, materials science, etc.; information about the production of marine equipment objects by additive manufacturing from filaments; the results of our own calculations and experiments for the production of a small vessel hull using additive technologies; well-known industry regulations and standards for working with fiberglass in shipbuilding. The technique of printing and assembling the hull of a small vessel, the necessary preliminary computational-analytical and experimental studies for redesigning the hull structure for additive manufacturing, the problems arising during and after printing and assembling the hull, and the analysis of the labor intensity of manufacturing the hull using additive and traditional technologies are considered. It has been found that not all types of small vessels will have advantages in terms of labor intensity in their additive manufacturing; it is possible to use incremental production. With the right organization of production management, additive technologies will have an advantage in terms of the laboriousness of the technological process in the production of hulls of kayak-type ships, and similar structures in terms of geometry and weight, with individual piece production.