公开(公告)号：US06709771B2

公开(公告)日：2004-03-23

申请号：US10155257

申请日：2002-05-24

Applicant: James Allister

Inventor： James Allister

IPC: B22F704

CPC classification number: C22C19/03 ,  B22F5/04 ,  B22F7/08 ,  B22F2998/10 ,  B32B15/01 ,  C22C19/058 ,  F01D5/187 ,  F05C2201/0463 ,  F05C2201/0466 ,  F05D2230/00 ,  F05D2230/21 ,  F05D2300/11 ,  F05D2300/121 ,  F05D2300/131 ,  F05D2300/132 ,  F05D2300/133 ,  F05D2300/607 ,  Y10T428/12944 ,  B22F3/15 ,  B22F2202/01

Abstract: A hybrid component (30) having a cast single crystal superalloy portion (32) and an attached powder metallurgy material portion (34). The component may be a blade (30) of a gas turbine engine having a single crystal airfoil section and a powder metallurgy material root section. The powder metallurgy material may extend to form a core (36) within the airfoil section and may include cooling passages 38. The single crystal portion has a relatively simple geometry so that casting yields are optimized. The powder metallurgical portion includes the lower stressed and more complicated geometry sections of the component. A method of forming such a component includes casting the single crystal superalloy portion, then using that portion to form part of the mold for forming the powder metallurgy material portion.

Abstract translation: 具有铸造单晶超合金部分（32）和附着的粉末冶金材料部分（34）的混合部件（30）。 该部件可以是具有单晶翼型部分和粉末冶金材料根部的燃气轮机的叶片（30）。 粉末冶金材料可以延伸以在翼型部分内形成芯部（36）并且可以包括冷却通道38.单晶部分具有相对简单的几何形状，使得铸造产量被优化。 粉末冶金部分包括部件的较低应力和更复杂的几何形状部分。 形成这种组分的方法包括浇铸单晶超合金部分，然后使用该部分形成用于形成粉末冶金材料部分的模具的一部分。