METHOD OF MAKING A ROTOR YOKE AND ROTOR YOKE THEREOF
摘要
A method of making a rotor yoke includes preparing a cured composite rotor yoke preform on a single-sided curing tool and machining at least one portion of the cured rotor yoke preform to form a rotor yoke. In one embodiment, preparing the cured composite rotor yoke is accomplished by applying successive layers of uncured polymeric composite material to a single-sided tool in a configuration to produce an uncured rotor yoke preform; disposing a semi-rigid caul to an untooled side of the uncured rotor yoke preform; enclosing the uncured rotor yoke preform and the semi-rigid caul by substantially hermetically sealing a vacuum bag to the tool; substantially evacuating a volume defined by the vacuum bag and the tool of air; and heating the uncured rotor yoke preform, sometimes under pressure, to form the cured composite rotor yoke preform.
申请公布号
CA2712638(A1)
申请公布日期
2009.08.06
申请号
CA20082712638
申请日期
2008.01.31
申请人
BELL HELICOPTER TEXTRON INC.
发明人
HIROS, TRICIA;STAMPS, FRANK BRADLEY;TISDALE, PAT;MEASOM, RON;BRASWELL, JIM;CAMPBELL, TOM;OLDROYD, PAUL K.;BARBOUR, RICHARD