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A self-bonded foamed abrasive article and a method of machining using such an article. The machining method includes providing a workpiece having a worksurface and removing material from the worksurface by moving an abrasive relative to the worksurface, wherein the abrasive comprises a foamed abrasi

A self-bonded foamed abrasive article and a method of machining using such an article. The machining method includes providing a workpiece having a worksurface and removing material from the worksurface by moving an abrasive relative to the worksurface, wherein the abrasive comprises a foamed abrasive body consisting of abrasive grains and a porosity of at least about 66 vol %.

대표청구항 ▼

1. A method of machining comprising: providing a workpiece having a worksurface; andremoving material from the worksurface by moving an abrasive relative to the worksurface, wherein the abrasive comprises a self-bonded foamed abrasive body comprising abrasive grains and a porosity of at least about

1. A method of machining comprising: providing a workpiece having a worksurface; andremoving material from the worksurface by moving an abrasive relative to the worksurface, wherein the abrasive comprises a self-bonded foamed abrasive body comprising abrasive grains and a porosity of at least about 70 vol %. 2. The method of claim 1, wherein the porosity is within a range between about 75 vol % and about 95 vol %. 3. The method of claim 1, wherein the abrasive grains are selected from the group of materials consisting of oxides, borides, nitrides, carbides, and any combination thereof. 4. The method of claim 1, wherein the self-bonded foamed abrasive body comprises pores having an average size of at least about 1 micron. 5. The method of claim 4, wherein the self-bonded foamed abrasive body comprises a fraction of pores having an average diameter greater than 300 microns (PF300) of at least about 15%. 6. The method of claim 4, wherein the self-bonded foamed abrasive body comprises a fraction of pores having an average diameter greater than 450 microns (PF450) of at least about 5%. 7. The method of claim 4, wherein the self-bonded foamed abrasive body comprises a fraction of pores having an average diameter greater than 750 microns (PF750) of not greater than about 10%. 8. The method of claim 1, wherein the self-bonded foamed abrasive body has a thickness greater than about 60 mm. 9. An abrasive tool comprising: a self-bonded foamed abrasive body having abrasive grains and a porosity of at least about 70 vol %, wherein the abrasive body is configured for engagement with a chuck of a grinding machine. 10. The abrasive tool of claim 9, wherein the abrasive body has a circular cross sectional contour. 11. The abrasive tool of claim 9, wherein a coupling portion of the abrasive body comprises an opening extending through a center of the abrasive body and defining a rotational axis of the abrasive body, the opening configured for engagement with the chuck of a grinding machine. 12. The abrasive tool of claim 9, wherein the abrasive body has an elongated shape defined by a length, width, and thickness. 13. The abrasive tool of claim 12, wherein the length