Additive manufacturing process parameters influence investigation on the operation of formed layer temperature stabilization system

In the last decade, great interest has been shown in the introduction of additive technologies, in which wire is used as a feed material. Such technologies are characterized by high productivity, low cost of the filler material and provide the possibility of forming large-sized products. The relevance of closed control systems development for additive manufacturing processes with filler wire feeding is justified. It is shown that despite the availability of publications devoted to the development of methods for controlling of the deposited layer temperature, there are currently no applying process control systems with feedback. The most rational method of developing such systems is mathematical modeling using. The paper represents a descriptive mathematical model of the additive manufacturing process based on the energy equation numerical solution. It is shown that this model can be supplemented by an algorithm for temperature stabilization that implements one of the laws widely used in control theory, which is PI, or PID–law. The results of computational experiments have shown the fundamental possibility of creating closed systems for additive manufacturing processes controlling with filler material feeding in the form of a wire.