Patterned abrasive material and method

B - Operations – Transporting – 44 – C

Patent

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Details

B44C 1/165 (2006.01) B24D 3/06 (2006.01) B24D 5/10 (2006.01) B24D 5/12 (2006.01) B24D 11/00 (2006.01) B24D 18/00 (2006.01)

Patent

CA 2163030

An abrasive material is formed by coating a substrate (10) with an adhesive (11) contacting the substrate with a quantity of hard; abrasive particles (12) then removing all particles not held by the adhesive. The remaining particles are surrounded with a sinterable or fusible material while the particles are temporarily held. The substrate can have the adhesive applied in a pattern, or covering uniformly and masked (14) to cause particles to adhere in certain areas to achieve a desired pattern. While the particles are held on the substrate physical force can be applied to orient the particles uniformly; then, a powder can be applied, or the substrate can be applied to a preform Subsequent treatment with heat and/or pressure will complete the abrasive material.

La formation d'un matériau abrasif consiste à enduire un substrat (10) d'un adhésif (11) mettant le substrat en contact avec une quantité de particules abrasives dures (12), puis à retirer toutes les particules non maintenues par l'adhésif. Les particules restantes sont entourées d'un matériau frittable ou fusible tandis que les particules sont temporairement maintenues. L'adhésif recouvrant le substrat peut être appliqué en une configuration, une couverture uniforme et à l'aide de masques (14) destinés à faire coller les particules dans certaines zones afin d'obtenir la configuration voulue. Tandis que les particules sont maintenues sur le substrat, on peut appliquer une force physique destinée à orienter uniformément les particules, ensuite on peut appliquer une poudre, ou le substrat peut être appliqué sur une préforme. Le traitement ultérieur à la chaleur et/ou à la pression achève le matériau abrasif.

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