Die casting system and method

Patent metadata

Field	Value
Publication number	US-2016167122-A1
Application number	US-201615050532-A
Country	US
Kind code	A1
Filing date	Feb 23, 2016
Priority date	Jul 29, 2011
Publication date	Jun 16, 2016
Grant date	—

Abstract

A die casting system includes a die having a plurality of die elements that define a die cavity. A charge of material is received in the die cavity. The charge of material comprises a refractory metal intermetallic composite based material system. A die casting method includes casting a component from the refractory metal intermetallic composite based material system.

First claim

What is claimed is:

1 . A method of die casting a component, comprising:
injecting a refractory metal intermetallic composite based material system into a die cavity of a die of a die casting system.

2 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes molybdenum di-silicide (MoSi2).

3 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes Nb 5 Si 3 +NbO+SiO 2 .

4 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes NbSi 2 +Nb 5 Si 3 +SiO 2 .

5 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes TaSi 2 +Ta 5 Si 3 +SiO 2 .

6 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes W 5 Si 3 +W+SiO 2 .

7 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes WSi 2 +W 5 Si 3 +SiO 2 .

8 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes a nickel aluminide based composite material.

9 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes a titanium aluminide based composite material.

10 . The method as recited in claim 1 , wherein the refractory metal intermetallic composite based material system includes a platinum aluminide based composite material.

11 . The method as recited in claim 1 , comprising heating the die prior to or during the injecting of the refractory metal intermetallic composite based material system.

12 . The method as recited in claim 1 , comprising cooling the die prior to or during the injecting of the refractory metal intermetallic composite based material system.

13 . The method as recited in claim 1 , comprising solidifying the refractory metal intermetallic composite based material system within the die cavity to form a gas turbine engine airfoil.

14 . The method as recited in claim 13 , wherein the gas turbine engine airfoil includes an internal geometry that is cast into the airfoil.

15 . The method as recited in claim 13 , wherein the internal geometry defines a microcircuit cooling scheme.

16 . A method of die casting a component, comprising:
pouring a charge of material into a shot tube of a die casting system, the charge of material comprising a refractory metal intermetallic composite based material system selected from the group consisting of a nickel aluminide based composite material, a titanium aluminide based composite material, and a platinum aluminide based composite material; injecting the charge of material into a die cavity of a die of the die casting system by actuating a shot tube plunger within the shot tube; and solidifying the charge of material within the die cavity to form a gas turbine engine component.

17 . The method as recited in claim 16 , wherein the gas turbine engine component includes an equiaxed structure having a randomly oriented grain structure.

18 . The method as recited in claim 16 , wherein the nickel aluminide based composite material includes a general composition of NiAl and Ni3Al.

19 . The method as recited in claim 16 , wherein the titanium aluminide based composite material includes a general composition of TiAl, TiAl2, and TiAl3.

20 . The method as recited in claim 16 , wherein the platinum aluminide based composite material includes a general composition of PtAl.

Assignees

• United Technologies Corp

Inventors

• Bochiechio Mario P
• Marcin John Joseph
• Shah Dilip M

Classifications

• B22D25/02

  by its peculiarity of shape; of works of art {(cylinders, pistons B22D15/02)} · CPC title

• B22D21/06 Primary

  Casting non-ferrous metals with a high melting point, e.g. metallic carbides (B22D21/02 takes precedence) · CPC title

• B22D17/10

  with horizontal press motion · CPC title

• B22D17/2218

  Cooling or heating equipment for dies (for permanent moulds B22C9/065; for plastics B29C45/73) · CPC title

• B22D17/2209

  Selection of die materials (for permanent moulds B22C9/061) · CPC title