Insert casting or tack welding of machinable metal in bulk amorphous alloy part and post machining the machinable metal insert

Patent metadata

Field	Value
Publication number	US-9027630-B2
Application number	US-201213541481-A
Country	US
Kind code	B2
Filing date	Jul 3, 2012
Priority date	Jul 3, 2012
Publication date	May 12, 2015
Grant date	May 12, 2015

Abstract

Provided in one embodiment is a method of forming a connection mechanism in or on a bulk-solidifying amorphous alloy by casting in or on, or forming with the bulk-solidifying amorphous alloy, a machinable metal. The connection mechanism can be formed by machining the machinable metal.

First claim

What is claimed:

1. A method of forming a connection mechanism in a bulk-solidifying amorphous alloy comprising:
forming an object or part formed in whole or in part of a bulk-solidifying amorphous alloy, the bulk-solidifying amorphous alloy having positioned therein at least one cavity, the at least one cavity having at least one contact surface;
insert casting or tack welding into the at least one cavity a machinable metal having a hardness lower than the bulk-solidifying amorphous alloy and being capable of forming a metal-to-metal bond with the at least one contact surface of the cavity; and
machining the machinable metal to form the connection mechanism.

2. The method of claim 1 , wherein the machinable metal is selected from the group consisting of aluminum, zinc, magnesium, tin, nickel, indium, antimony, copper, aluminum alloy, zinc alloy, magnesium alloy, tin alloy, nickel alloy, indium alloy, antimony alloy, copper alloy, and mixtures thereof.

3. The method of claim 1 , wherein machining is selected from the group consisting of grinding, threading, milling, drilling, carving, cutting, turning, routing, and combinations thereof.

4. The method of claim 1 , further comprising surface treating the at least one contact surface of the cavity prior to insert casting or tack welding.

5. The method of claim 1 , wherein the object or part is formed entirely of a bulk-solidifying amorphous alloy material.

6. The method of claim 1 , wherein the alloy is described by the following molecular formula: (Zr, Ti) a (Ni, Cu, Fe) b (Be, Al, Si, B) c , wherein “a” is in the range of from 30 to 75, “b” is in the range of from 5 to 60, and “c” is in the range of from 0 to 50 in atomic percentages.

7. The method of claim 1 , wherein the alloy is described by the following molecular formula: (Zr, Ti) a (Ni, Cu) b (Be) c , wherein “a” is in the range of from 40 to 75, “b” is in the range of from 5 to 50, and “c” is in the range of from 5 to 50 in atomic percentages.

8. The method of claim 1 , wherein the bulk solidifying amorphous alloy can sustain strains up to 1.5% or more without any permanent deformation or breakage.

9. A method of forming a connection mechanism in a bulk-solidifying amorphous alloy comprising:
forming an object or part formed in whole or in part of a bulk-solidifying amorphous alloy by forming the bulk-solidifying amorphous alloy portion so that it has positioned therein at least one cavity, the at least one cavity having at least one contact surface, and while forming the bulk solidifying amorphous alloy portion, also forming a machinable metal insert in the at least one cavity whereby the machinable metal insert has a hardness lower than the bulk-solidifying amorphous alloy and is capable of forming a metal-to-metal bond with the at least one contact surface of the cavity; and
machining the machinable metal to form the connection mechanism.

10. A method of forming a connection mechanism in a bulk-solidifying amorphous alloy comprising:
forming an object or part formed in whole or in part of a bulk-solidifying amorphous alloy part having at least one extending protrusion, the protrusion having at least one contact surface;
insert casting or tack welding onto the extending protrusion a machinable metal having a hardness lower than the bulk-solidifying amorphous alloy and being capable of forming a metal-to-metal bond with the at least one contact surface of the at least one protrusion; and
machining the machinable metal to form the connection mechanism.

11. The method of claim 10 , wherein insert casting or tack welding is carried out using a mold to form a machinable metal protrusion surrounding the extending protrusion.

12. The method of claim 10 , wherein the machinable metal is selected from the group consisting of aluminum, zinc, magnesium, tin, nickel, indium, antimony, copper, aluminum alloy, zinc alloy, magnesium alloy, tin alloy, nickel alloy, indium alloy, antimony alloy, copper alloy, and mixtures thereof.

13. The method of claim 10 , wherein machining is selected from the group consisting of threading, milling, drilling, carving, cutting, turning, routing, and combinations thereof.

14. The method of claim 10 , further comprising surface treating the at least one contact surface of the extending protrusion prior to insert casting or tack welding.

15. The method of claim 10 , wherein the object or part is formed entirely of a bulk-solidifying amorphous alloy material.

16. The method of claim 10 , wherein the alloy is described by the following molecular formula: (Zr, Ti) a (Ni, Cu, Fe) b (Be, Al, Si, B) c , wherein “a” is in the range of from 30 to 75, “b” is in the range of from 5 to 60, and “c” is in the range of from 0 to 50 in atomic percentages.

17. The method of claim 10 , wherein the alloy is described by the following molecular formula: (Zr, Ti) a (Ni, Cu) b (Be) c , wherein “a” is in the range of from 40 to 75, “b” is in the range of from 5 to 50, and “c” is in the range of from 5 to 50 in atomic percentages.

18. The method of claim 10 , wherein the bulk solidifying amorphous alloy can sustain strains up to 1.5% or more without any permanent deformation or breakage.

19. A method of forming a connection mechanism in a bulk-solidifying amorphous alloy comprising:
forming an object or part formed in whole or in part of a bulk-solidifying amorphous alloy part having an external surface, the external surface optionally having at least one extending protrusion having at least one contact surface, and while forming the bulk-solidifying amorphous alloy portion, forming a machinable metal protrusion extending from the bulk-solidifying amorphous alloy portion, the machinable metal having a hardness lower than the bulk-solidifying amorphous alloy and being capable of forming a metal-to-metal bond with the external surface of the bulk-solidifying amorphous alloy part, or optionally with the at least one contact surface of the at least one extending protrusion; and
machining the machinable metal to form the connection mechanism.

20. The method of claim 19 , wherein the machinable metal protrusion is formed using a mold.

Assignees

• Prest Christopher D
• Scott Matthew S
• Zadesky Stephen P
• Stratton Dermot J
• Poole Joseph C
• Heley Richard W
• Apple Inc

Inventors

• Prest Christopher D
• Scott Matthew S
• Zadesky Stephen P
• Stratton Dermot J
• Poole Joseph C
• Heley Richard W

Classifications

• B23K2103/02

  Iron or ferrous alloys · CPC title

• B23K2103/12

  Copper or alloys thereof · CPC title

• B23K2103/08

  Non-ferrous metals or alloys · CPC title

• B32B15/01 Primary

  all layers being exclusively metallic {(making layered metal workpieces by pressure cladding B23K20/22; making coatings with a metallic material characterised by its composition C23C30/00)} · CPC title

• C22C1/11

  Making amorphous alloys · CPC title