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-10131116-B2
Application number	US-201514709280-A
Country	US
Kind code	B2
Filing date	May 11, 2015
Priority date	Jul 3, 2012
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

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. An object or part formed in whole or in part of:
a bulk-solidifying amorphous alloy defining a first cavity having at least one contact surface; and
an insert, formed of a non-amorphous metal having a hardness lower than the bulk-solidifying amorphous alloy, positioned in the first cavity and joined to the contact surface of the bulk-solidifying amorphous alloy via a metal-to-metal bond, the insert defining:
a second cavity within the insert and within the first cavity; and
a threaded connection mechanism within the second cavity for joining another component to the insert.

2. The object or part of claim 1 , wherein the non-amorphous 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 object or part of claim 1 , wherein the insert is bonded to the bulk-solidifying amorphous alloy via tack welding.

4. The object or part of claim 1 , wherein the bulk-solidifying amorphous 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.

5. The object or part of claim 1 , wherein the bulk-solidifying 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 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.

6. The object or part of claim 1 , wherein the bulk solidifying amorphous alloy has an elastic strain limit of 1.5% or more.

7. The object or part of claim 1 , wherein:
the first cavity is defined by a sidewall and a bottom surface; and
the insert completely covers the sidewall and the bottom surface.

8. A part comprising:
a bulk-solidifying amorphous alloy defining a first cavity; and
an insert within the first cavity and defining a threaded second cavity positioned within the first cavity, the insert formed from a metal having a lower hardness than the bulk-solidifying amorphous alloy.

9. The part of claim 8 , wherein the insert is fused to the bulk-solidifying amorphous alloy.

10. The part of claim 8 , wherein a longitudinal axis of the threaded second cavity is parallel to a longitudinal axis of the first cavity.

11. The part of claim 8 , wherein the bulk-solidifying alloy has an amorphous content of more than 90% by volume.

Assignees

• 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

• C22C45/02

  with iron as the major constituent · CPC title

• B23K35/284

  Mg as the principal constituent · CPC title

• B22D19/16

  for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills (casting compound ingots B22D7/02) · CPC title

• B23K2103/12

  Copper or alloys thereof · CPC title