Delphi Technologies, Inc.

Madhu Sudan Chatterjee

Vinod Kumar Sikka

Andrzej Marian Pawlak

David E Witucki

Steven J Schultz

Charles T Blue

An extruded magnetic structure includes a first layer of low alloy steel compressed powder and a second layer of rare earth metal compressed powder circumferentially disposed around the first layer. A third layer of compressed powder may be circumferentially disposed around the second layer.

Manufacturing technique for multi-layered structure with magnet using an extrusion process

A method is provided for manufacturing a multi-layered magnetic rod in which a steel powder is reduced and extruded through a die. To improve the magnetic properties, a layer of rare earth magnetic power formed around the low alloy steel in the extruder chamber. A second layer of coating formed around the rare earth powder and the three layers are co-extruded through the die to produce a layered rod having improved magnetic properties. The resulting magnetic rod may be machined using conventional machining methods.

A ring assembly manufacturing apparatus ( ) and method provides heat to a ring ( ) such as a polymeric ring from an infrared source ( ). A ring assembly ( ) includes a ring ( ) and a hub ( ) within the ring. The ring ( ) is traversed into a chamber ( ) such that the ring ( ) is exposed to infrared energy from the infrared source ( ). The infrared energy causes the ring ( ) to expand thereby facilitating assembly with the hub ( ).

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Saginaw, MI, United States of America

Madhu Sudan Chatterjee