Wire drawing die and method of making

1. A disposable diamond die comprising:

a die core comprised of diamond; and

a ring container system comprising at least two pre-stressed rings of increasing diameter placed around the die core, the pre-stressed condition of the rings establishing a deformed fit between the rings and the ring container system further providing a compression against the die core,

wherein the at least two rings form a container housing the die core; and

a housing comprising a housing container and a cap surrounding the two rings and die core.

2. The disposable die of claim 1 , wherein the at least two rings comprise split rings, washers, sleeves, bands, wires, braids, or a combinations thereof.

3. The disposable die of claim 1 , wherein the diamond comprise synthetic diamond, natural diamond, polycrystalline diamond, or a mixtures thereof.

4. The disposable die of claim 3 , wherein the die is comprised of polycrystalline diamond.

5. The disposable die of claim 1 , wherein at least one ring is comprised of a metal, a fiber reinforced composite, or a combination thereof.

6. The disposable die of claim 1 , further comprising a retaining material positioned between the die core and a first of the rings or between a pair of consecutive rings.

7. The disposable die of claim 6 , wherein the retaining material comprises a spot weld, a thin metal film, a foil, an adhesive foil, a coating, an adhesive, a wedge, a lubricant, or a combinations thereof.

8. The disposable die of claim 6 , wherein the retaining material is located between each of the die core and a first ring, and each pair of consecutive rings.

9. The disposable die of claim 1 , wherein the die has a diameter of about 1 to about 50 mm.

10. The disposable die of claim 1 , wherein the die core and the rings have mating geometrical features.

11. The disposable die of claim 1 , wherein the die core is generally cylindrical in shape.

12. A method for forming a disposable diamond die assembly comprising the steps of:

providing a die core comprised of diamond;

providing at least two rings of increasing diameter by establishing a pre-stressed condition between the at least two rings to form a pre-stressed ring container system;

securing the die core in the pre-stressed ring container system by contacting respective mating geometrical features between the ring container system and die core and causing a deformation in at least one of the mating geometrical feature, the deformation providing mechanical compression forces sufficient to secure the die core in the ring container system; and

placing the ring container system with the secured die core into a container assembly.

13. The method of claim 12 , wherein the securing comprises press fitting of the mating geometric features.

14. The method of claim 12 , wherein the securing comprises shrink fitting of the mating geometric features.

15. The method of claim 12 . wherein the mating geometric features have dimensions that creates an interference fit.

16. The method of claim 12 , wherein the diamond comprises synthetic diamond, natural diamond, polycrystalline diamond, or a mixtures thereof.

17. The method of claim 12 , wherein the at least two rings comprise at least one of a metal and a fiber reinforced composite.

18. The method of claim 12 , further comprising the step of heat-treating the die at a temperature of at least about 300° C.

19. The method of claim 12 , further comprising providing a retaining device positioned between the die core and a first of the rings.

20. The method of claim 19 , wherein the retaining device comprises one or more of a spot weld, a thin metal film, a foil, an adhesive foil, a wedge, a lubricant, and a combination thereof.