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US 7,842,375 B2Granted
Fiber retention system for metal matrix composite preform
AssigneeROLLS-ROYCE plc
InventorDaniel Kent Vetters
Life of this patent
Estimating the term…
Abstract
A metal matrix composite preform including an angled curved groove in the surface of the matrix material. A reinforcing fiber is placed within the angled curved groove and the stiffness of the fiber causes it to be pressed against an outer wall member defining the groove. The fiber is retained within the metal matrix composite preform prior to hot isostatic pressing.
Claims17
A matrix composite preform comprising:
- a metallic or intermetallic body having an outer surface with a groove formed therein and having a first portion of the groove extending about an axis, said first portion defined by a first sidewall and a second sidewall that are both oriented at an acute angle relative to said outer surface, said second sidewall is located further from said axis than said first sidewall;
- and
- a fiber reinforcement is located in said first portion of the groove and internally biased against said second sidewall.
A preform comprising:
- a metallic or intermetallic material having a substantially planar outer surface with at least one groove formed therein about an axis;
- a reinforcing fiber located within said at least one groove;
- and
- said at least one groove including fiber retention means for retaining said reinforcing fiber therein.
1 more element
Dependencies are inferred from the claim text.