Development of Precision Controllable Magnetic Field-Assisted Platform for Micro Electrical Machining

Area of Science:

• Engineering
• Materials Science
• Physics

Background:

• Micro electrical machining (MEM) requires precise control for advanced applications.
• Introducing magnetic fields into MEM can enhance machining capabilities.
• A controllable magnetic field platform is crucial for MEM research.

Purpose of the Study:

• To develop a precision controllable magnetic field-assisted platform for micro electrical machining.
• To investigate the influence of magnetic fields on micro electrical machining processes.
• To achieve precise spatial control of magnetic fields within the workspace.

Main Methods:

• Hardware design and construction of a magnetic field generation device using electromagnetic coils and soft iron cores.
• Development and calibration of magnetic field mathematical models, including spherical harmonic expansion and magnetic multipole superposition models.
• Design of a magnetic field sampling device for workspace data acquisition and model calibration.

Main Results:

• A functional magnetic field-assisted platform capable of generating magnetic fields in any direction (0-0.2 T).
• A calibrated magnetic field model with a 2.986% error, 0.9977 variance, and 0.00071 T RMSE.
• Demonstrated precise control of the magnetic field within the workspace.

Conclusions:

• The developed platform enables precise magnetic field control for micro electrical machining.
• The advanced modeling approach accurately describes the generated magnetic fields.
• This technology facilitates further research into magnetic field-assisted micro electrical machining.