Electroformed sheath and airfoiled component construction,申请号US19970811628-传众专利搜索

Electroformed sheath and airfoiled component construction

申请公布号：US5881972(A)

申请号：US19970811628

申请日期：1997.03.05

申请公布日期：1999.03.16

申请人：

UNITED TECHNOLOGIES CORPORATION

发明人：SMITH, BLAIR A.;GRAFF, JOHN M.

分类号：B64C11/20;C25D1/00;C25D3/56;(IPC1-7):B64C3/36

主分类号：B64C11/20

摘要：A sheath for covering and protecting a component leading edge of an airfoiled component is disclosed. The sheath includes a sheath leading edge, and a first protective side and a second protective side, wherein the first and second protective sides are merged at the sheath leading edge. A cavity is formed between the first and second protective sides, wherein the cavity is adapted to have the airfoiled component positioned therein and engage an inside surface of each of the first and second protective sides. The sheath is formed from a material including cobalt, and preferably a nickel-cobalt composition. Preferred embodiments include cobalt in the nickel-cobalt composition present between 8-32 wt. % and 30-54 wt. %, based on the weight of the sheath. An airfoiled component construction is also disclosed. This construction includes a main structural component formed in the shape of an airfoil, wherein the main structural component has a leading edge, and a sheath covering and protecting the leading edge, wherein the sheath is formed from a material including cobalt such as a nickel-cobalt composition. Preferred embodiments include cobalt in the nickel-cobalt composition present between 8-32 wt. % and 30-54 wt. %, based on the weight of the sheath.