Low cost feedstock for titanium casting, extrusion and forging
AssigneeDynamet Technology, Inc.
InventorsStanley Abkowitz, Susan M. Abkowitz, Harold L. Heussi, Kevin M. McCarthy
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Abstract
A low cost titanium, titanium alloy material, or Ti matrix composite comprising clean and divided titanium turnings that are blended with titanium, titanium alloy powder, and/or ceramic powder and consolidated is provided. A method of making the material is also provided. The low cost material is formed into preshapes, such as a billet, which is subsequently used as feedstock for extrusion, forging, casting, or rolling.
Claims14
A titanium or titanium alloy material comprising from about 10% to about 80% clean and divided titanium turnings, wherein said turnings are blended with titanium or titanium alloy powder and consolidated to at least 90% of theoretical density.
A titanium or titanium alloy material, comprising from about 10% to about 80% clean and divided titanium turnings blended with titanium or titanium alloy or master alloy powder, and consolidated to at least 90% of theoretical density, wherein said material is preformed feedstock that is forged into a final shape.
A titanium alloy matrix composite material comprising from about 10% to about 90% clean and divided titanium turnings blended with titanium powder, master alloy powder, and ceramic particles consolidated to at least 90% of theoretical density, wherein said material is in the form of a feedstock billet or preform shape.
A method of making pure titanium billet feedstock using titanium machining turnings, said method comprising:
- blending titanium powder with titanium turnings;
- isostatically pressing the blended titanium powder and titanium turnings to form a compact;
- vacuum sintering and/or hot isostatic pressing the compact to form a high density billet that can subsequently be processed by extrusion, forging, casting, or rolling.
A method of making Ti-6Al-4V alloy billet feedstock using Ti-6Al-4V machining turnings, said method comprising:
- blending titanium powder with titanium Al—V master alloy powder, and Ti-6Al-4V turnings;
- isostatically pressing the blended powder and turnings to form a compact;
- vacuum sintering, and hot isostatic pressing the compact to form a high density billet that can subsequently be processed by extrusion, forging, casting, or rolling.
A method of making Ti metal matrix composite billet feedstock using Ti-6Al-4V machining turnings, said method comprising:
- blending titanium powder with titanium Al—V master alloy powder, at least one ceramic powder, and Ti-6Al-4V turnings;
- isostatically pressing the blended powder and turnings to form a compact;
- and
- vacuum sintering and/or hot isostatic pressing the compact to form a high density billet that can subsequently be processed by extrusion, forging, casting, or rolling.
A Ti metal matrix composite billet feedstock comprising:
- a blend of titanium powder, titanium Al—V master alloy powder, at least one ceramic powder, and Ti-6Al-4V turnings,
- wherein said at least one ceramic powder is a carbide, boride, nitride, or oxide of Ti, Si, Al, and W.
Dependencies are inferred from the claim text.