Electrical Applications

Powder:
The specification for the powder regarding mechanical and magnetic properties (e. g. eddy current losses, mechanical strength) and the machinability determine the success. Depending on the application, PMG uses its own powders or works with the powders of experienced partners.

Production process:
In line with PM parts for combustion motors, the challenges in the production process rise with the complexity of the geometry. In a variety of projects PMG industrialized the SMC production process. Round blanks of SMC can be produced in laboratories. The production of application relevant designs unveils the challenges in process steps and competences. The compaction at high density but also the choice of heat treatment that depends on the design of the specimens have to be considered. Also the mechanical processing is a challenge in the production process.

Laboratory and quality:
PMG has set up a laboratory for the determination of magnetic properties. This is to assure quality in the production process as well as the support of the R&D efforts. In this laboratory, PMG is able to measure hysteresis loops, inductance versus frequency, resistivity and strengths.

Tooling design:
The design of the tooling – which is closely linked to the design of the electrical application – is very important. It determines the viability of the project. In the last years, PMG has gradually established in-house construction capabilities for tooling which are not available in the market.

Design support for electrical machines:
PMG works closely with engineering partners to align the design of efficient electrical machines of customers with the design of SMC.