TECHNOLOGY OF MANUFACTURING BEAMS REINFORCED WITH WELDED FRAMES BY 3D PRINTING METHOD

Abstract

The publication is devoted to the technology of manufacturing beams by the method of 3D printing, reinforced with welded frames.

The aim of the study. To develop a technology for the manufacture of beams using a construction 3D printer with reinforcement of beams with welded frames.

The task of the research is the construction of beams reinforced with welded frames and the technology of their production by the method of 3D printing with the specified sequence of work, taking into account the capabilities of the construction printer. On the basis of the developed technology, make test samples of beams for further experimental research.

Research methodology. To implement the task, the beams were first modeled and designed in graphic automated complexes, taking into account the features of their further formation and production by 3D printing.

Constructions of experimental beams reinforced with welded frames were produced using a construction 3D printer by the Ukrainian company LLC "3D TECHNOLOGY UTU" based on a previously developed technological sequence of work. The work presents constructive solutions and working drawings of experimental samples. The developed technology takes into account the possibility of reinforcing the beam with welded frames. The diagram of the movement of the nozzle of the 3D printer during the formation of the beam is shown. The design is made taking into account the structural requirements.

As a result, using 3D printing technology, two beams reinforced with welded frames were obtained, further research of which is planned to be carried out in laboratory conditions. These designs can be successfully used in construction and as part of scientific experimental research.

In order to know the physical and mechanical characteristics of the materials of the beams, experimental samples of cubes and prisms, as well as fittings from the same materials as the beams, were made. The use of a construction printer and 3D printing made it possible to obtain structures that exactly corresponded to the previously developed structural solutions and were manufactured according to the developed technological solutions.