Influences on Occurrence of Magnetism During Cutting Processes
Dirk Bähre*, Kirsten Trapp*, and Ralf Tschuncky**
*Institute of Production Engineering, Saarland University, Campus A4.2, 66123 Saarbrücken, Germany
**Fraunhofer Institute of Non-Destructive Testing (IZFP), Campus E3.1, 66123 Saarbrücken, Germany
Workpieces from ferromagnetic materials influenced by machining can build magnetic fields, which can cause problems in production or application. One of the assumed causes of magnetism occurring in cutting processes is the change in the material structure due to the impact of the tool. To study these influences, milling tests are carried out. The magnetic field is measured by means of sensors functioning on the basis of the Hall effect. The coherences between geometry, kinematics, technological parameters, time dependency, and the magnetisation characteristics of the workpiece are considered.
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