Bonded Magnet Materials and Processing Options Bonded magnets are an important but often overlooked group of products that magnetic circuit and device designers should consider when choosing the optimum permanent magnet type for their specific application need. In their most basic form bonded magnets consist of two components; a hard magnetic powder and a non-magnetic [...]
Bonded Magnet Material And Process Options Injection Molding Compression Bonding Calendering Extrusion Bonded Magnet Material And Process Compression Bonding or Injection Molding? Injection Molding • Complex forms with good geometrical tolerances • Multi‐cavity tooling • Over and insert molding But • Expensive tooling • Lower magnetics (66% volume loading of magnetic powder) • NdFeB and ferrite Compression Bonding • Thin walled large L/D ratio rings • Simple low cost tooling • Higher magnetics (75% volume loading of magnetic powder) But • Simple geometries • Value added operations during pressing very difficult • NdFeB only CLEANING MAGNET TESTING MAGNET How long should my permanent magnet last? MAGNETIC APPLICATIONS
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