Investigation of the machinability of the CuAl10Fe4 material obtained by the DMD-method

The paper considers the results of an experimental study of the machinability of the CuAl10Fe4 material obtained using the DMD-method (Direct Metal Deposition). DMD is one of the new high-tech technologies belonging to the additive group, the essence of which is the direct deposition of material from a gas-powder jet of metal particles. The use of this technology makes it possible to manufacture parts of a rather complex shape, while it becomes possible to abandon labor-intensive procurement processes. In addition, this technology allows the application of multicomponent coatings with special properties such as heat resistance, corrosion resistance, increased strength, wear resistance, etc. The object of experimental research is the milling process. The subject of research is the output parameters of the process. The purpose of the work is to assess the machinability of the deposited material by milling using the indicators of the cutting force and the quality of the machined surface. The main methods used to achieve this goal are experiment, measurement and analysis. The results of the experiment provided the data necessary for further processing. The main task of the experiments was to register the cutting force and measure the roughness of the machined surface at various feeds, which is the most important stage for establishing their relationship. As a result of the study, the relationship between the cutting force during milling and the roughness of the machined surface from the feed was established, which made it possible to determine the coefficient of relative machinability of the CuAl10Fe4 material obtained by the DMD-method. The obtained values of the coefficient of relative machinability can be used in the design of the operation of machining such a material to assign cutting conditions.