Method of improving the wear resistance performance of mechanical component
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United States of America Patent
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app pub date -
Jun 28, 2004
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Jul 29, 2003
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Abstract
The invention relates to the design and manufacturing technique of mechanical component which is prone to be worn in relative movement. More particularly, it relates to a method of improving the wear resistance performance of the surface of mechanical component. In this method, a bionic non-smooth morphology is formed on the frictional surface of the mechanical component. That is, a plurality of convex units shaped as crown, dimple, scale, mesh, stripe and so on are distributed on the surface. These units are 0.01-2 mm higher than the base surface. The distributed density (S) of the units, i.e., the ratio of the geometrical area of the convex units projected on the surface of the base with respect to the whole surface area of the base, is 10-40%. The hardness difference between the units and the base is HB0-200. It breaks through the conventional concept and provides a more rational and effective way to improve the wear resistance performance of mechanical component.
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