Method of making a cemented carbide or cermet body
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United States of America Patent
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Oct 3, 2017
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app pub date -
Oct 17, 2012
filing date -
Oct 17, 2011
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Abstract
The present invention relates to a method of making a cemented carbide or a cermet body comprising the steps of first forming a powder blend comprising powders forming hard constituents and metal binder. The powder blend is then subjected to a mixing operation using a non-contact mixer wherein acoustic waves achieving resonance conditions to form a mixed powder blend and then subjecting said mixed powder blend to a pressing and sintering operation. The method makes it possible to maintain the grain size, the grain size distribution and the morphology of the WC grains.
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