Brazed diamond tools and methods for making the same
View Patent ↗Superabrasive tools and methods for the making thereof are disclosed and described. In one aspect, superabrasive particles are chemically bonded to a matrix support material according to a predetermined pattern by a braze alloy. The brazing alloy may be provided as a powder, thin sheet, or sheet of amorphous alloy. A template having a plurality of apertures arranged in a predetermined pattern may be used to place the superabrasive particles on a given substrate or matrix support material.
1. A superabrasive tool having a superabrasive impregnated segment, comprising:
a metal matrix configured for bonding superabrasive particles, wherein the metal matrix comprises an alloy of copper and manganese; and
a plurality of superabrasive particles held in the metal matrix at specific positions according to a predetermined pattern, wherein tips of each of the plurality of the superabrasive particles protrude from the metal matrix to a uniform height.
2. The tool of claim 1 , wherein the predetermined pattern is a uniform pattern.
3. The tool of claim 1 , wherein the plurality of superabrasive particles is diamond or cBN.
4. The tool of claim 1 , wherein the plurality of superabrasive particles is diamond.
5. The tool of claim 1 , wherein the uniform height is an equal height.
6. A method for making a superabrasive tool, comprising:
arranging a plurality of superabrasive particles in a metal matrix at specific positions such that the plurality of superabrasive particles are held in the metal matrix according to a predetermined pattern, wherein tips of each of the plurality of the superabrasive particles protrude from the metal matrix to a uniform height, and wherein the metal matrix comprises an alloy of copper and manganese.
7. The method of claim 6 , wherein arranging the plurality of superabrasive particles includes:
placing a template with a plurality of apertures formed therein on the metal matrix;
filling the apertures of the template with superabrasive particles;
pressing the superabrasive particles at least partially into the metal matrix; and
removing the template.
8. The method of claim 6 , wherein the template is configured to hold only one superabrasive particle in each aperture.
9. The method of claim 6 , wherein the predetermined pattern is a uniform pattern.
10. The method of claim 6 , wherein the uniform height is an equal height.
11. The method of claim 6 , wherein the plurality of superabrasive particles is diamond or cBN.
12. The method of claim 6 , wherein the plurality of superabrasive particles is diamond.
13. A method for making a superabrasive tool, comprising:
providing a template with a plurality of apertures formed therein;
filling the apertures of the template with superabrasive particles;
removing the template such that the plurality of superabrasive particles are maintained at specific positions according to a predetermined pattern; and
forming a metal matrix to hold the plurality of superabrasive particles in the predetermined pattern, wherein tips of each of the plurality of the superabrasive particles protrude from the metal matrix to a uniform height, and wherein the metal matrix comprises an alloy of copper and manganese.
14. The method of claim 13 , wherein the template is configured to hold only one superabrasive particle in each aperture.
15. The method of claim 13 , wherein the predetermined pattern is a uniform pattern.
16. The method of claim 13 , wherein the plurality of superabrasive particles is diamond or cBN.
17. The method of claim 13 , wherein the plurality of superabrasive particles is diamond.