Hot pressed magnets formed from anisotropic powders
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United States of America Patent
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Oct 4, 1994
Grant Date -
N/A
app pub date -
Nov 20, 1992
filing date -
Nov 20, 1992
priority date (Note) -
Expired
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Abstract
A method is provided for forming a high energy product, anisotropic, hot pressed iron-rare earth metal permanent magnet without the requirement for magnetic alignment during pressing or additional hot working steps. The method of this invention includes providing a quantity of anisotropic iron-rare earth metal particles and hot pressing the particles so as to form a substantially anisotropic permanent magnet. The pressed permanent magnet of this invention permits a greater variety of shapes as compared to conventional hot worked anisotropic permanent magnets. As a result, the magnetic properties and shape of the permanent magnet of this invention can be tailored to meet the particular needs of a given application.
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