Rotating Disc for Machining Material Surfaces

Abstract

Proposed is a method for producing a rotating disc for machining material surfaces, said disc comprising a disc-shaped main body ( 10 ), which has a central receptacle ( 14 ) for direct or indirect connection to a drive shaft, and a material machining coating ( 18 ), which is applied to a ring zone ( 12 ) of the main body ( 10 ) that is arranged on an end face, comprising the following steps: placing glass fabric mats in a mold cavity of a production tool; compressing the glass fabric mats in the production tool to form the main body ( 10 ) having a lip ( 16 ) which is configured in a section at least close to the edge; demolding the main body ( 10 ); applying the material machining coating ( 18 ) to the end face of the main body that faces away from the lip ( 16 ); stacking main bodies ( 10 ) of the same kind, each having a material machining coating ( 18 ) applied thereto, so that the lip ( 16 ) of one main body ( 10 ) is directly supported on the material machining coating ( 18 ) of a next main body ( 10 ); exerting a pressure on the stack of main bodies ( 10 ), each of which has the material machining coating ( 18 ) applied thereto, parallel to the rotation axis of the main bodies ( 10 ); releasing the pressure and destacking the main bodies ( 10 ) which have the material machining coatings ( 18 ) applied thereto.

1 . A method for producing a rotating disc for machining material surfaces, said disc including a disc-shaped main body, which has a central receptacle for direct or indirect connection to a drive shaft, and a material machining coating applied to a ring zone of the main body that is arranged on an end face, said method comprising the following steps:
 placing glass fabric mats in a mold cavity of a production tool;   compressing the glass fabric mats in the production tool to form the main body having a lip which is configured in a section at least close to the edge;   demolding the main body from the mold cavity of the production tool;   applying the material machining coating to the end face of the main body that faces away from the lip;   producing more than one main body to form a plurality of main bodies and stacking said plurality of main bodies, each main body of said plurality of main bodies having a material machining coating applied thereto, so that the lip of one main body of said plurality of main bodies is directly supported on the material machining coating of a next main body of said plurality of main bodies;   exerting a pressure on the stack of main bodies, each of which has the material machining coating applied thereto, parallel to a rotation axis extending through the central receptacle of the main body;   releasing the pressure and destacking the main bodies which have the material machining coatings applied thereto.   
     
     
         2 . The method as set forth in  claim 1 , in which said stack of main bodies when exerting a pressure is heated so that an adhesive is activated for bonding each material machining coating to the corresponding main body. 
     
     
         3 . The method as set forth in  claim 1 , in which said stack of main bodies each of which has the material machining coating applied thereto is centered by means of a rod passing through the central receptacle of the main body. 
     
     
         4 . The method as set forth in  claim 1 , in which said lips of the main bodies are finished smoothened. 
     
     
         5 . A rotating disc for machining material surfaces, said disc comprising:
 a disc-shaped main body, which has a central receptacle for direct or indirect connection to a drive shaft; and   a material machining coating applied to a ring zone of the main body, said ring zone being arranged on an end face of the main body, the main body being made of glass fabric mats and featuring a lip which is configured in a section at least close to an edge of a side facing away from the material machining coating, said lip surrounding said central receptacle at least in part.   
     
     
         6 . The rotating disc as set forth in  claim 5 , in which said lip is fully surrounding said central receptacle. 
     
     
         7 . The rotating disc as set forth in claim, in which said lip forms a rim of the main body. 
     
     
         8 . The rotating disc as set forth in  claim 5 , in which said lip is a bead in the structure of the glass fabric material and spaced away from the rim of the main body. 
     
     
         9 . The rotating disc as set forth in  claim 5 , in which said main body has a diameter ranging from 90 mm to 230 mm and the lip a height ranging from 1 mm to 8 mm. 
     
     
         10 . A tool for producing a main body of a rotating disc for machining material surfaces formed of a plurality of interconnected glass fabric mats, the tool comprising a mold cavity to nest the glass fabric mats corresponding in shape to that of the main body and a portion for configuring an at least partly surrounding lip of the main body. 
     
     
         11 . The tool as set forth in  claim 10 , in which said portion for configuring the lip is a kink formed cross-sectionally in the edge of the mold cavity. 
     
     
         12 . The tool as set forth in  claim 11 , in which said portion for configuring the lip is a bend having a wavy cross-section and being close to the edge of the mold cavity.