BLADE USING ULTRA-HARD MICROSCOPIC PARTICLES
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United States of America Patent
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Issued Date -
Oct 1, 2009
app pub date -
Sep 26, 2008
filing date -
Mar 25, 2008
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Abandoned
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Abstract
The present invention relates to a blade that comprises a blade main body and an edge part. In the blade main body and the edge part, one or more comprising the edge part are manufactured by using a powder composition that comprises less than 5% by weight of the ultra-hard particle powder having a particle size in the range of 1 μm to 5 μm based on a total weight of the powder composition and the balance metal powder forming a matrix according to a powder metallurgy process. The blade according to the present invention has a sawlike or wavy edge part to provide an excellent cutting ability. Even though the abrasion occurs by using the blade, since the sawlike or wavy edge part is semipermanently maintained, the cutting ability is not reduced.
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