Protected super-abrasive grinding tool
First Claim
1. In a rotary grinding tool comprising a generally annularly-configured super-abrasive matrix having an outer peripheral, configured working surface and a relatively-wear-prone, concentrically-disposed support structure therefor with continuous radial marginal portions laterally abutting and supporting marginal side portions of the super-abrasive matrix continuously around the periphery thereof, the improvement wherein said support structure has at least one peripherally-exposed recess in said continuous radial marginal portions contiguous with said super-abrasive matrix and having imbedded in said recess a peripherally-exposed super-abrasive medium.
1 Assignment
0 Petitions
Accused Products
Abstract
This improved rotary-type, super-abrasive grinding tool is designed to cope with a longstanding problem heretofore encountered when subjecting such tools to periodic dressing operations. The improved tool comprises an annular hub having a periphery or rim with a generally U-shaped slot therein, and a generally annularly-configured super-abrasive matrix supported in said slot and having an outer peripheral, configured working surface. The axially opposed walls of the slot buttress and support the sides of the super-abrasive matrix. Each of the walls have a plurality of peripherally-exposed, radially-disposed recesses therein containing a super-abrasive medium, preferably having the same composition and integral with the super-abrasive matrix. The exposed periphery of the super-abrasive medium protects peripherally-aligned portions of the rim from excessive wear when improperly contacted with the dressing medium.
22 Citations
12 Claims
- 1. In a rotary grinding tool comprising a generally annularly-configured super-abrasive matrix having an outer peripheral, configured working surface and a relatively-wear-prone, concentrically-disposed support structure therefor with continuous radial marginal portions laterally abutting and supporting marginal side portions of the super-abrasive matrix continuously around the periphery thereof, the improvement wherein said support structure has at least one peripherally-exposed recess in said continuous radial marginal portions contiguous with said super-abrasive matrix and having imbedded in said recess a peripherally-exposed super-abrasive medium.
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8. A protected rotary grinding tool comprising:
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(a) a generally annularly-configured super-abrasive matrix having an outer peripheral, configured working surface; (b) a relatively-wear-prone, concentrically-disposed support structure for said super-abrasive matrix with continuous radial marginal portions laterally abutting and supporting marginal side portions of the super-abrasive matrix continuously around the periphery thereof, said support structure having a plurality of peripherally-exposed recesses in said continuous radial margin portions contiguous with said super-abrasive matrix and having imbedded in said recesses a super-abrasive medium having the same composition as said super-abrasive matrix and integrally formed therewith. - View Dependent Claims (9, 10)
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11. A protected super-abrasive grinding tool comprising:
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(a) an annular relatively-wear-prone hub having a periphery with a generally U-shaped slot with continuous axially-opposed side walls therein; (b) a generally annularly configured super-abrasive matrix supported in said slot and having an outer peripheral, configured working surface; (c) the axially opposed side walls of said slot laterally buttressing axial extremities of said super-abrasive matrix continuously around the periphery thereof; and (d) each of said side walls having a plurality of peripherally-exposed recesses therein containing a super-abrasive medium of the same composition and integral with said super-abrasive matrix, the exposed periphery of the super-abrasive medium protecting peripherally aligned portions of said hub. - View Dependent Claims (12)
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Specification