Electromechanical surface texturing

A magnetic shaping apparatus, comprising:

• a container configured to hold a magnetically responsive fluid and a workpiece immersed in a ferrofluid, the ferrofluid having abrasive particles;
• an electromagnet arranged with respect to the workpiece such that a magnetic field of the electromagnet directs movement of the ferrofluid in a path across a surface of the workpiece, wherein movement of the ferrofluid provides a cutting action sufficient for the abrasive particles to remove material from the workpiece;
• and
• a power supply configured to supply varying amounts of electric current to the electromagnet, wherein an amount of electric current supplied to the electromagnet is associated with a strength of the magnetic field.