A new approach in the production of electrical motors using only machining processes

Abstract

As a new possibility of producing the electrical steel sheets of electrical motors, a motor sample was produced using just machining processes such as turning, drilling, milling and sawing. Therefore several strategies in the production flow were considered and tested. The idea behind this method of producing a motor is to avoid the expensive cutting processes and material deterioration. On the one hand punching, as the most common cutting method of electrical steel sheet, is only cheap for useful for high volume and not for samples or small series, on the other hand laser cutting, which is suitable for single production of motors, requires expensive tools. Moreover punching and laser cutting deteriorate the electrical steel sheets close to the cutting edges. Since machining processes can be adjusted in speed and cooled with a fluid, a less distinctive effect can be assumed.