The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2007
Filed:
Dec. 27, 2004
Techniques for manufacturing a product using electric current during plastic deformation of material
Nader G. Dariavach, Upton, MA (US);
James A. Rice, Waukesha, WI (US);
Nader G. Dariavach, Upton, MA (US);
James A. Rice, Waukesha, WI (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A technique for manufacturing a product involves receiving material, providing plastic deformation to the material to at least partially form the product, and applying electric current to the material while providing the plastic deformation to the material. The electric current is configured to reduce flow stresses within the material during plastic deformation. In some arrangements, the electric current is a series of high-density, short electric pulses which increases plasticity due to increasing the dislocation mobility of the deformed material. In some arrangements, the electric current provides an electric current density through the material of at least 1000 Amperes per square millimeter with each electric pulse lasting no longer than 0.01 seconds.