Abrading – Rigid tool – Rotary cylinder
Patent
1997-05-15
1999-03-30
Rose, Robert A.
Abrading
Rigid tool
Rotary cylinder
451544, B24D 514
Patent
active
058881298
ABSTRACT:
A grinding wheel having a portion of its leading radially extending wall dome-shaped and having a sector thereof coated with a coarse-textured abrasive coating that performs rapid material removal from a workpiece. Radially outward of the coarse sector, the remainder of the radially extending wall and the outer (circumferential) portion are coated with a fine-textured abrasive coating for providing a smooth finish. The working surface of the coarse-textured abrasive coating extends to an outermost radial dimension that is smaller than the radial dimension of the working surface of the finer-textured coating. The differential in dimensions defines the incremental material removal that is accomplished by the fine-textured abrasive coating. The change of textures occurs at a transition line along the radially extending surface of the grinding wheel and therefore localizes stresses in a region of the workpiece that is located radially outward of the portion of the workpiece that will constitute the final surface finish. The coarse-textured and fine-textured abrasive coating are preferably in orderly patterns shaped and oriented to optimize the finish of the workpiece, the speed of processing and the ease of manufacture when used in conjunction with the stepless dual-textured construction.
REFERENCES:
patent: 3537216 (1970-11-01), Borgh
patent: 3802130 (1974-04-01), Lindenbeck
patent: 5496208 (1996-03-01), Neff
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