초록

Sharp-edged cutting tools and a method of manufacturing sharp-edged cutting tools wherein at least a portion of the sharp-edged cutting tool is formed from a bulk amorphous alloy material are provided.

대표청구항 ▼

1. A cutting tool comprising:a blade portion having a sharpened edge and a body portion; wherein at least one of the blade portion and the body portion are formed from a bulk amorphous alloy material, and where at least one portion of the bulk amorphous alloy material has a thickness of at least 0.5

1. A cutting tool comprising:a blade portion having a sharpened edge and a body portion; wherein at least one of the blade portion and the body portion are formed from a bulk amorphous alloy material, and where at least one portion of the bulk amorphous alloy material has a thickness of at least 0.5 mm. 2. The cutting tool as described in claim 1, wherein the bulk amorphous alloy is described by the following molecular formula:(Zr,Ti)a(Ni,Cu)b(Be)c, wherein “a” is in the range of from about 40 to 75, “b” is in the range of from about 5 to 50, and “c” in the range of from about 5 to 50 in atomic percentages. 3. The cutting tool as described in claim 1, wherein the bulk amorphous alloy is described by the following molecular formula:Zr41Ti14Ni10Cu12.5Be22.5. 4. The cutting tool as described in claim 1, wherein the bulk amorphous alloy has an elastic limit of at least about 1.2%.5. The cutting tool as described in claim 1, wherein the bulk amorphous alloy is based on iron, cobalt, and/or nickel wherein the elastic limit of the bulk amorphous alloy is about 1.2% and higher.6. The cutting tool as described in claim 1, wherein the bulk amorphous alloy is described by a molecular formula selected from the group consisting of: Fe72Al5Ga2P11C6B4 and Fe72Al7Zr10Mo5W2B15.7. The cutting tool as described in claim 1, wherein the at least one portion formed from the bulk amorphous alloy has an elastic limit of at least about 2.0%.8. The cutting tool as described in claim 1, wherein the bulk amorphous alloy further comprises a ductile metallic crystalline phase precipitate.9. The cutting tool as described in claim 1, further comprising a handle mounted onto the body portion.10. The cutting tool as described in claim 9, wherein the handle is formed from a material selected from the group consisting of: a plastic, a metal and wood.11. The cutting tool as described in claim 1, wherein at least the blade portion is formed from the bulk amorphous alloy.12. The cutting tool as described in claim 1, wherein the sharpened edge is formed from a bulk amorphous alloy and has a radius of curvature of about 150 Angstroms or less.13. The cutting tool as described in claim 1, wherein the blade portion is further coated with a high-hardened material selected from the group consisting of: TiN, SiC and diamond.14. The cutting tool as described in claim 1, wherein the cutting tool is anodized.15. The cutting tool as described in claim 1, wherein the cutting tool is in the form of one of either a knife or a scalpel.16. The cutting tool as described in claim 1, wherein the sharpened edge is serrated.