Texture pattern for abrasive tool
OwnerCharles NEFFinventor
Life of this patent
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Abstract
The present disclosure relates to abrasives surfaces located on an outer diameter of a grinding wheel to provide grinding characteristics of both coarse and fine abrasive textures. The grinding wheel has a coarse abrasive portion located at one disclosure uses a transition band formed at an interface between the abrasive surfaces, that has an abrasive coating with a gradual change in texture from a coarse surface to a fine surface.
Claims19
An abrasive tool including a tool base having a supporting surface and an abrasive surface layer located on the supporting surface, wherein the abrasive surface layer is generally cylindrical and rotatable about a central axis for removing material from a workpiece surface by contact therewith and by relative movement thereof along a working path parallel to and spaced from the abrasive tool axis, the abrasive tool comprising:
- an outer circumferential portion having abrasive particles deposited thereon, said abrasive particles arranged to provide a range of textures from fine to coarse at opposed axial extremes of said outer circumferential portion, and wherein said abrasive particles intermediate said axial extremes are arranged to provide a gradation of textures from fine to coarse when moving between axial extremes.
A grinding wheel including abrasive surface layer located at an outer circumferential portion thereof, the abrasive surface layer defining a grinding surface with first and second axial ends, comprising:
- a first coating portion having a first coarseness located on the abrasive surface layer proximate to the first axial end;
- a second coating portion having a second coarseness, different from the first coarseness, located on the abrasive surface layer proximate to the second axial end;
- and
- a transition coating portion disposed at an interface between the first coating portion and the second coating portion, the transition coating portion having textures that vary from the coarseness of the first coating portion to the coarseness of the second coating portion.
A method for grinding a work piece with grinding wheel including abrasive surface layer located at an outer circumferential portion thereof, the abrasive surface layer defining a grinding surface with first and second axial ends, the abrasive surface layer including a first coating portion having a first coarseness located on the abrasive surface layer proximate to the first axial end, a second coating portion having a second coarseness, different from the first coarseness, located on the abrasive surface layer proximate to the second axial end, and a transition coating portion disposed at an interface between the first coating portion and the second coating portion, the transition coating portion having textures that vary from the coarseness of the first coating portion to the coarseness of the second coating portion, the method including the steps of
- arranging the grinding wheel and the work piece in spaced axial relation to each other,
- initiating rotating movement of the grinding wheel, and
- translating the grinding wheel in an axial direction to thereby initiate relative axial movement between the work piece and the grinding wheel such that the first coating portion contacts the work piece, the transition portion thereafter contacts the work piece, and the second coating portion finally contacts the work piece in a single pass.
A method for making an abrasive tool including a substrate layer and an abrasive surface layer defining a grinding surface with first and second ends, comprising, in any order, the following steps:
- (a) defining a pattern corresponding to a first coating portion having a first spacing defining a first coarseness to be located on the abrasive surface layer, a second coating portion having a second spacing defining a second coarseness, and a transition coating portion disposed at an interface between the first coating portion and the second coating portion, the pattern for the transition coating portion having spacings that vary in displacement from one another to define a varying coarseness ranging from the first coating portion to the second coating portion;
- (b) depositing a plurality of abrasive elements on a surface according to the pattern;
- (c) forming a matrix including the plurality of abrasive elements to provide an abrasive surface layer;
- and
- (d) adhering the abrasive surface layer to the substrate.
Dependencies are inferred from the claim text.