Non-oriented electrical steel (NOES) laminations are commonly used to manufacture the rotor and stator core of electric machines. To achieve high machine efficiencies, it is desirable for these NOES be able a saturation magnetisation whilst incurring minimal losses. It known that inappropriate machining could cause significant deterioration in their magnetic properties. However, mechanisms by w...

This paper presents an experimental comparative study of iron losses obtained by means of the Epstein frame, Ring Core and dynamometer tests with non-oriented electrical steel samples. The comparisons are qualitative and they are intended to show the importance of carrying out other tests to evaluate electrical steels in addition to the standard Epstein frame method. In industry, complex or cos...

Electrical steels can be classified into two groups: grain-oriented (GO) and non-oriented (NGO) electrical steel. NGO are mainly considered as core materials for different devices, such electric motors, generators, rotating machines. The magnetic properties texture evolution of depend on multiple factors (such chemical content, heat-treatment, rolling process) making the development new product...