A method and an apparatus for abrading, and products and uses for such

Abstract

A continuous abrasive product includes predetermined length and number of predetermined kind of abrasive areas on an abrasive surface, A method for abrading a workpiece, includes arranging an abrasive area of an abrasive product at an abrading zone for abrading the workpiece, and after abrading, replacing the abrasive area at the abrading zone with an another abrasive area of the abrasive product for abrading the workpiece according to a subsequent abrading phase. The used abrasive area is replaced by an unused abrasive area of a different kind. The abrasive product comprises a continuous longitudinal abrasive material including at least two longitudinally sequential different abrasive areas having different kind of abrasive properties.

1 . A method for abrading a round-shaped workpiece, comprising:
 arranging an abrasive area of an abrasive product at an abrading zone for abrading the round-shaped workpiece,   pressing the abrasive area around the round-shaped workpiece such that the abrasive area and the round-shaped workpiece are arrangeable in contact at the abrading zone, and   replacing the abrasive area at the abrading zone with an another abrasive area of the abrasive product for abrading the round-shaped workpiece,   wherein the another abrasive area is different from the abrasive area, wherein the abrasive product comprises a continuous longitudinal abrasive product including at least two longitudinally sequential different abrasive areas having different kind of abrasive properties.   
     
     
         2 . The method for abrading a round-shaped workpiece according to  claim 1 , further comprising feeding the different abrasive areas of the continuous longitudinal abrasive product to the abrading zone constantly, in a continuous manner. 
     
     
         3 . The method for abrading a round-shaped workpiece according to  claim 1 , further comprising feeding to the abrading zone the abrading product comprising three or at least three different abrasive areas. 
     
     
         4 . The method for abrading a round-shaped workpiece according to  claim 1 , wherein the method is repeated one or more times by replacing the abrasive area at the abrading zone, being a used abrasive area, with different kind of abrasive area of the abrasive product, being an unused abrasive area, optionally by feeding an unused abrasive area to the abrading zone, and at the same time removing the used abrasive area of the abrasive product from the abrading zone. 
     
     
         5 . (canceled) 
     
     
         6 . (canceled) 
     
     
         7 . The method for abrading a round-shaped workpiece according to  claim 1 , further comprising abrading the round-shaped workpiece continuously during feeding the abrasive material replacing the abrasive area at the abrading zone. 
     
     
         8 . The method for abrading a round-shaped workpiece according to  claim 1 , further comprising abrading the round-shaped workpiece:
 after the abrasive area of the abrasive product is arranged at the abrading zone and   after the abrasive area at the abrading zone is replaced with the another abrasive area of the abrasive product.   
     
     
         9 . The method for abrading a round-shaped workpiece according to  claim 1 , wherein the abrasive product comprises two or more different abrasive areas comprising abrasive grains of different kind, size, order and/or density. 
     
     
         10 . The method for abrading a round-shaped workpiece according to  claim 1 , further comprising receiving an abrasive material on a support at the abrasive zone, and moving the abrasive area towards the round-shaped workpiece in order to arrange the abrasive area in contact with the round-shaped workpiece. 
     
     
         11 . The method for abrading a round-shaped workpiece according to  claim 10 , wherein the support comprises an abrasive support, a roll, a clamp shoe, a contact piece, an abrading base or a contact roll, wherein the clamp shoe is optionally arranged to conform shape and size of the round-shaped workpiece. 
     
     
         12 . The method for abrading a round-shaped workpiece according to  claim 1 , further comprising:
 feeding an abrasive area of an abrasive product between the round-shaped workpiece and a support at the abrading zone,   arranging the support around the round-shaped workpiece in order to arrange the abrasive area of the abrasive product in contact with the round-shaped workpiece,   after abrading, arranging the support away from the round-shaped workpiece in order to separate the abrasive area of the abrasive product, being the used abrasive area, apart from the round-shaped workpiece,   feeding another abrasive area of the abrasive product, being an unused abrasive area, at the abrading zone between the round-shaped workpiece and the support, in order to replace the used abrasive area of the abrasive product, and   before abrading, arranging the support around the workpiece in order to arrange the another abrasive area in contact with the round-shaped workpiece.   
     
     
         13 . An apparatus for abrading a round-shaped workpiece, comprising:
 an arrangement configured to feed to an abrading zone an abrasive area of an abrasive product and to replace the abrasive area at the abrasive zone with an another abrasive area of the abrasive product,   wherein the another abrasive area is different from the abrasive area,   wherein the abrasive area of the abrasive product is arrangeable in contact around the round-shaped workpiece in the abrading zone, and   wherein the abrasive product comprises continuous longitudinal abrasive product including at least two longitudinally sequential different abrasive areas having different kind of abrasive properties.   
     
     
         14 . The apparatus for abrading a round-shaped workpiece according to  claim 13 , further comprising an arrangement configured to feed an abrasive area to the abrading zone constantly, in a continuous manner. 
     
     
         15 . The apparatus for abrading a round-shaped workpiece according to  claim 13 , wherein the abrasive product comprises three or at least three different abrasive areas. 
     
     
         16 . The apparatus for abrading a round-shaped workpiece according to  claim 13 , wherein the arrangement configured to replace the abrasive area at the abrading zone, being a used abrasive area, is configured to replace the abrasive area one or more times with a different kind of abrasive area of the abrasive product, being an unused abrasive area, and optionally the arrangement configured to replace the abrasive area at the abrasive zone is configured to feed the another, unused abrasive area of the abrasive product, and configured to, at the same time, remove the abrasive area, being the used abrasive area of the abrasive product, from the abrading zone. 
     
     
         17 . (canceled) 
     
     
         18 . (canceled) 
     
     
         19 . The apparatus for abrading a round-shaped workpiece according to  claim 13 , wherein the abrasive product comprises two or more different abrasive areas comprising abrasive grains of different kind, size, order and/or density. 
     
     
         20 . The apparatus for abrading a round-shaped workpiece according to  claim 13 , further comprising a support at the abrasive zone, wherein the support optionally comprises an abrasive support, a roll, a clamp shoe, a contact piece, an abrading base or a contact roll, and wherein the clamp shoe is optionally arranged to conform the shape and the size of the round-shaped workpiece. 
     
     
         21 . The apparatus for abrading a round-shaped workpiece according to  claim 13 , further comprising a support at the abrasive zone, wherein the support is arranged moveable towards and away from the round-shaped workpiece in order to arrange the abrasive surface towards and in contact with the round-shaped workpiece, and away from the round-shaped workpiece. 
     
     
         22 . The apparatus for abrading a round-shaped workpiece according to  claim 13 , wherein the abrading comprises sequential abrasive phases, which comprise at least one of: predetermined kind of abrasive surface, predetermined time of different abrading phases, predetermined time of total abrading, predetermined movement between the abrasive surface and the round-shaped workpiece, speed of relative movement, speed of feeding the abrasive material. 
     
     
         23 . The apparatus for abrading a round-shaped workpiece according to  claim 13 , wherein the abrading comprises sequential abrasive phases, which comprise at least one of: a predetermined oscillation of the support a predetermined pressure between at the contact area of the round-shaped workpiece and the abrasive surface, a predetermined rotation speed of the round-shaped workpiece, a predetermined speed for feeding the abrasive material to the abrasive zone, a predetermined abrading manner of dry or wet abrading. 
     
     
         24 . An abrasive product comprising a continuous longitudinal abrasive product and at least two sequential different kind of abrasive areas along the longitudinal dimension of the abrasive product, the at least two sequential different kind of areas having different kind of abrasive properties, wherein the continuous longitudinal abrasive product is feedable in an abrading zone of an abrading apparatus in order to arrange continuous abrading sequentially with the corresponding at least two sequential different kind of abrasive areas, and wherein an intersection between the at least two sequential different kind of abrasive areas is angled line across width of the continuous longitudinal abrasive product. 
     
     
         25 . (canceled) 
     
     
         26 . (canceled)