Manufacturing method of rotary grindstone and rotary grindstone which has been manufactured by the manufacturing method
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United States of America Patent
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Jan 23, 2018
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N/A
app pub date -
Aug 8, 2014
filing date -
Apr 30, 2014
priority date (Note) -
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Abstract
A problem solved is realizing a self-sharpening of a rotary grindstone in the most efficient manner and allowing sequential appearances of sharp cutting faces. To solve the problem, the invention provides a manufacturing method of a rotary grindstone 1 with one or more sheets of glass cloth 4 as a reinforcing material, wherein the glass cloth 4 is weaved by thirl plain weave/twill weave or leno weave composed of twist yarns having a diameter of 0.1 mm or less and formed in meshes with lengthwise and crosswise lengths of 2.0 mm or less, and attaching liquid resin to the glass cloth 4 to produce a prepreg 6, attaching resin-coat abrasive grains to both faces of the prepreg 6, and pressing the prepreg 6 in a press machine and further performing predetermined press working in a metal mold, performing baking.
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