US2022143784A2PendingUtilityA2

Grinding tool and method for producing a grinding tool

Assignee: PFERD MILWAUKEE BRUSH COMPANY INCPriority: Oct 19, 2018Filed: Oct 19, 2018Published: May 12, 2022
Est. expiryOct 19, 2038(~12.2 yrs left)· nominal 20-yr term from priority
B24D 18/0072B24D 7/04B24D 3/20B24B 41/007B24D 9/08B24D 7/18B24D 18/0009B24D 11/02
36
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Claims

Abstract

A grinding tool has a main body having at least one fiber ply embedded in a binder. An abrasive layer is arranged on the main body. The at least one fiber ply is arranged in the binder in a partially movable manner. As a result, a relative movement that ensures high vibration and noise damping is achieved within the main body and within the at least one fiber ply.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 - 20 . (canceled) 
     
     
         21 . A grinding tool comprising
 a main body having   a binder,   at least one fiber ply embedded in the binder, and   an abrasive layer,   
       wherein the at least one fiber ply is arranged in the binder in a partially movable manner. 
     
     
         22 . The grinding tool as claimed in  claim 21 , wherein each fiber ply comprises a plurality of yarns that are embedded in the binder in a partially movable manner relative to one another. 
     
     
         23 . The grinding tool as claimed in  claim 21 , wherein the main body comprises a plurality of fiber plies that are embedded in the binder and are movable relative to one another in some region or regions. 
     
     
         24 . The grinding tool as claimed in  claim 21 , wherein the main body comprises a plurality of fiber plies having a plurality of yarns, and the yarns are embedded in the binder in a partially movable manner relative to one another. 
     
     
         25 . The grinding tool as claimed in  claim 21 , wherein the at least one fiber ply comprises at least one of at least one woven fabric and at least one non-crimp fabric. 
     
     
         26 . The grinding tool as claimed in  claim 21 , wherein the main body comprises a number N of fiber plies, wherein: 1≤N≤12. 
     
     
         27 . The grinding tool as claimed in  claim 21 , wherein, for a ratio M of a mass ins of the binder to a mass mF of the at least one fiber ply, the following applies: 1/25≤M≤1/2. 
     
     
         28 . The grinding tool as claimed in  claim 21 , wherein the main body comprises damping particles. 
     
     
         29 . The grinding tool as claimed in  claim 21 , wherein the binder is an organic adhesive. 
     
     
         30 . The grinding tool as claimed in  claim 21 , wherein the main body is of curved design. 
     
     
         31 . The grinding tool as claimed in  claim 21 , comprising a supporting layer, which is connected to the main body and on which the abrasive layer is arranged. 
     
     
         32 . The grinding tool as claimed in  claim 21 , wherein the abrasive layer is shaped three-dimensionally. 
     
     
         33 . A method for producing a grinding tool having the following steps:
 preparing at least one fiber ply and a binder,   producing a main body by heating and then cooling the binder, wherein the at least one fiber ply is arranged in a partially movable manner in the binder after cooling, and   forming an abrasive layer.   
     
     
         34 . The method as claimed in  claim 33 , wherein a plurality of fiber plies are used to produce the main body. 
     
     
         35 . The method as claimed in  claim 33 , wherein the heating of the binder takes place under pressure. 
     
     
         36 . The method as claimed in  claim 33 , wherein preparation takes place in such a way that the at least one fiber ply is provided with the binder on one side. 
     
     
         37 . The method as claimed in  claim 33 , wherein preparation takes place in such a way that the at least one fiber ply is provided with the binder in one of some region and regions on two sides. 
     
     
         38 . The method as claimed in  claim 33 , wherein preparation takes place in such a way that a first fiber ply without binder is arranged adjacent to a second fiber ply provided with binder. 
     
     
         39 . The method as claimed in  claim 33 , wherein preparation takes place in such a way that the at least one fiber ply is arranged adjacent to a layer of binder. 
     
     
         40 . The method as claimed in  claim 33 , wherein a supporting layer is arranged on the main body. 
     
     
         41 . The method as claimed in  claim 33 , wherein the formation of the abrasive layer is performed by electrostatic application of abrasive particles.

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