Study of the possibility of using additive technology methods in the repair of agricultural machinery parts

Abstract

Currently, maintaining agricultural machinery in a constant working condition is an urgent task. Studies carried out to study the state of the problem in the conditions of agricultural enterprises of the Republic of Kazakhstan have shown that the lack of centralized repair and restoration bases and production facilities has a negative impact on the quality organization of agricultural machinery. Because of this, it is impossible to carry out repair and restoration work in a timely and high-quality manner, as well as technical maintenance of agricultural machinery and equipment. To solve this problem, it is proposed to use АM technologies in the repair and manufacture of parts of agricultural machinery and machines. To this end, the existing methods of additive technology were investigated. An experimental study was conducted on the manufacture of a «shaft-gear» part using a Stratasys F170 3D printer in the laboratory of the Department of «Technological Machines and Equipment» of the Kazakh Agrotechnical Research University named after S. Seifullin.

The results showed that the time of 3D printing directly depends not only on the size of the model, but also on the density and shape of the filling, as well as on the thickness of the printing layer. It was found that an increase in the thickness of the layer has a twofold effect on the 3D printing process - it has a positive effect on reducing the printing time, but it has a negative effect on the rigidity of the printed sample.