Patent ID: 11951519
Assignee: MAGNA INTERNATIONAL INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. An electromagnetic extrusion system for extruding an extrusion material, comprising:
a container defining a chamber for holding the extrusion material, wherein the container has a cup shape with a tubular side wall defining an inner surface and extending in an axial direction from a solid base;
a die located adjacent to and outside of the container and defining an opening in fluid communication with the chamber for the extrusion material to exit therefrom as an extrusion;
a ram configured to push the extrusion material out of the opening; and
an electromagnetic winding disposed about both of the chamber and the die located outside of the container and configured to carry an electrical current to generate a magnetic field to reduce flow stress of the extrusion material,
wherein the die comprises a ferromagnetic material configured to intensify the magnetic field within the extrusion material, and
wherein the die is configured to move with the ram through the chamber with the opening extending between an outer surface of the die and the inner surface of the tubular side wall of the chamber.