Grinding wheel

Abstract

The invention relates to a grinding wheel for the material-removing machining of at least one workpiece, preferably a grinding wheel for the simultaneous material-removing machining of at least two flat workpieces, wherein the grinding wheel is provided with a base body and a grinding layer arranged thereon for the grinding machining of the at least one workpiece, and wherein the grinding layer comprises a plurality of surface segments, wherein, in each case, a plurality of surface segments is provided both in the circumferential direction and in the radial direction. In order to specify a grinding wheel with which both harder and softer workpieces can be machined with good machining results and good wear behavior of the grinding wheel, the grinding layer should comprise at least two different types of surface segments with different degrees of hardness.

1 . Grinding wheel ( 1 ) for the material-removing machining of at least one workpiece, preferably a grinding wheel ( 1 ) for the simultaneous material-removing machining of at least two flat workpieces, wherein the grinding wheel ( 1 ) is provided with a base body ( 5 ) and a grinding layer arranged thereon for the grinding machining of the at least one workpiece, and wherein the grinding layer comprises a plurality of surface segments ( 2 ,  3 ), wherein, in each case, a plurality of surface segments ( 2 ,  3 ) is provided both in the circumferential direction and in the radial direction, characterized in that the grinding layer comprises at least two different types of surface segments ( 2 ,  3 ) which have different degrees of hardness. 
     
     
         2 . Grinding wheel ( 1 ) according to  claim 1 , characterized in that at least a first group of harder surface segments ( 2 ) and a second group of softer surface segments ( 3 ) are provided. 
     
     
         3 . Grinding wheel ( 1 ) according to  claim 2 , characterized in that the harder surface segments ( 2 ) have a hardness that is at least 5% harder than the hardness of the softer surface segments ( 3 ), preferably 10% to 20% harder than the hardness of the softer surface segments ( 3 ). 
     
     
         4 . Grinding wheel ( 1 ) according to  claim 1 , characterized in that at least some of the surface segments ( 2 ,  3 ) are either circular or annular, or even hexagonal. 
     
     
         5 . Grinding wheel ( 1 ) according to  claim 1 , characterized in that at least some of the surface segments ( 2 ,  3 ) are quadrangular with straight and/or curved side edges. 
     
     
         6 . Grinding wheel ( 1 ) according to  claim 1 , characterized in that at least two adjacent surface segments ( 2 ,  3 ) are separated from one another by a recessed area ( 4 ), for example in the form of a groove. 
     
     
         7 . Grinding wheel ( 1 ) according to  claim 6 , characterized in that, viewed in the radial direction, at least one recessed area ( 4 ) extends over the entire radial extension of the grinding wheel ( 1 ) and/or, viewed in the radial direction, at least one recessed area ( 4 ) extends only over a partial area of the radial extension of the grinding wheel ( 1 ). 
     
     
         8 . Grinding wheel ( 1 ) according to  claim 6 , characterized in that at least one recessed area ( 4 ) extends radially or in the form of an involute. 
     
     
         9 . Grinding wheel ( 1 ) according to  claim 6 , characterized in that at least one recessed area ( 4 ), preferably each recessed area, is at least partially, preferably completely, filled with a filling material, such as epoxy resin. 
     
     
         10 . Grinding wheel ( 1 ) according to  claim 6 , characterized in that at least one recessed area ( 4 ), preferably each recessed area, has a width of at least 1 mm, preferably 3 mm to 5 mm. 
     
     
         11 . Grinding wheel ( 1 ) according to  claim 1 , characterized in that at least one harder surface segment ( 2 ) and at least one softer surface segment ( 3 ) are provided at each radial position when viewed in the circumferential direction. 
     
     
         12 . Grinding wheel ( 1 ) according to  claim 1 , characterized in that the material thickness of the surface segments ( 2 ,  3 ) is at least 3 mm, preferably 5 mm to 10 mm. 
     
     
         13 . Grinding wheel set having two grinding wheels ( 1 ) for the simultaneous material-removing machining of both sides of at least two flat workpieces, characterized in that at least one grinding wheel ( 1 ) is formed as a grinding wheel ( 1 ) according to  claim 1 , and preferably each of the two grinding wheels ( 1 ) is formed as a grinding wheel ( 1 ) according to  claim 1 .