Impact of used semi-finished products on the cost of mass production of the part in the automotive industry

The article deals with the problem of determining production costs when designing part technology for the automotive industry. In mass-production and mass production, several variants of production processes are usually prepared, which are then assessed in economic and technological terms. Technological variants most often differ in the type of semi-finished product used, which significantly affects the efficiency and cost of machining carried out in subsequent operations. The article attempts to determine the methodology of determining costs for the developed technological variants. Simulation tests were carried out on production processes based on commercial semi-finished products and involving machining with high energy absorption, as well as processes based on special semi-finished products and using high-performance machining, characterized by low material consumption.