Electrical Properties of Conductors Additively Manufactured from AlSi10Mg Aluminum Powder

Additive manufacturing technologies are actively developing worldwide. The prospects of using these technologies for making electrical machine windings are especially interesting. Additive manufacturing opens new possibilities for making windings with integrated cooling channels. As a result, it becomes possible to achieve a significantly higher current density and ensure efficient removal of releasing heat. Moreover, by using additive manufacturing, it is possible to make windings with a unique, optimized geometry that cannot be obtained in using conventional methods. The article presents an analysis of the electrical properties of additively manufactured AlSi10Mg conductors, as well as information about the equipment used in the process. Experimental results have shown that before annealing, the electrical characteristics, such as conductor resistance and resistivity, are significantly higher than their predicted values, and the electrical conductivity is lower than its expected value. However, after annealing, the values of these parameters reached 73% of those in pure aluminum, thereby pointing to a potential for further studies of additive manufacturing for making the windings. The results obtained are an important step in the development of additive manufacturing technologies and open new prospects for making next-generation electrical machines