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US 8,851,058 B2Granted
Slot wear indicator for a grinding tool
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorsMarc Linh Hoang, Rodolphe Martin
Life of this patent
Estimating the term…
Abstract
Wear indicators for abrasive articles are presented. Specifically, indicator marks that are parallel to a bonding edge of a grinding element are presented. Tools comprising a carrier element and one or more grinding elements comprising one or more indicators are also presented.
Claims20
A tool comprising
- a carrier element comprising an outer circumferential edge;
- and
- a grinding element comprising:
- abrasive particles embedded in a metal matrix having a network of interconnected pores;
- a first face;
- a second face;
- a grinding edge between the first face and the second face, where the grinding edge wears in use;
- a bonding edge between the first face and the second face and opposite the grinding edge, where the bonding edge of each grinding element is bonded to the outer circumferential edge of the carrier element;
- a height H equal to the distance between the grinding edge and the bonding edge;
- a first indicator mark disposed on the first face of the grinding element;
- and
- a second indicator mark disposed on the first face of the grinding element, wherein the first and second indicator marks comprise arc segments that each have a height h, are parallel to one another and are both parallel to the outer circumferential edge of the carrier element, wherein the first and second indicator marks run the full length of the grinding element, and wherein the first and second indicator marks partition the grinding element into three segments having a height equal to (H−(2×h))/3.
9 more elements
A tool comprising:
- a carrier element comprising an outer circumferential edge;
- and
- a plurality of grinding elements, each grinding element comprising:
- abrasive particles embedded in a metal matrix having a network of interconnected pores;
- a first face;
- a second face;
- a grinding edge between the first face and the second face, where the grinding edge wears in use;
- a bonding edge between the first face and the second face and opposite the grinding edge, where the bonding edge of each grinding element is bonded to the outer circumferential edge of the carrier element;
- a height H equal to the distance between the grinding edge and the bonding edge;
- and
- N indicator marks disposed on a face of the grinding element, wherein the indicator marks comprise arc segments that are parallel to the outer circumferential edge of the carrier element;
- where the N indicator marks divide each grinding element into (N+1) segments.
9 more elements
A grinding element configured to be coupled to a carrier element comprising:
- abrasive particles embedded in a metal matrix having a network of interconnected pores;
- a first face;
- a second face;
- a grinding portion between the first face and the second face, where the grinding portion wears in use;
- a bonding portion between the first face and the second face and opposite the grinding edge, where the bonding portion of each grinding element is configured to be bonded to the carrier element;
- a height equal to the distance between the grinding portion and the bonding portion;
- and
- a first indicator mark comprising an arc segment disposed on the first face of the grinding element at a first distance from the bonding portion and parallel to the bonding portion, wherein the first indicator mark comprises a contrasting color.
5 more elements
Dependencies are inferred from the claim text.