公开(公告)号：US09488053B2

公开(公告)日：2016-11-08

申请号：US14591332

申请日：2015-01-07

Applicant: ALSTOM Technology Ltd

Inventor： Tobias Schmitt ,  Hans Bissig ,  Stefan Schlegel ,  Guenter Ambrosy ,  Michael Seemann ,  Hermann Emminger

IPC: F01D5/00 ,  B23P6/00 ,  F01D5/18 ,  F01D5/20

CPC classification number: F01D5/005 ,  B23K2101/001 ,  B23P6/007 ,  F01D5/186 ,  F01D5/20 ,  F05D2230/10 ,  F05D2230/232 ,  F05D2230/234 ,  F05D2230/235 ,  F05D2230/31 ,  F05D2230/80 ,  F05D2230/90 ,  F05D2300/607

Abstract: A method is provided for repairing a single crystal turbine blade, which includes an airfoil with a tip having a tip cover plate, tip cooling air holes and a tip crown. The method includes removing the tip crown by manual grinding, thereby preserving the underlying tip cover plate; preparing the tip cooling air holes by manual grinding; closing said prepared tip cooling air holes by manual welding; and building-up a new tip crown by a LMF (Laser Metal Forming) process.

Abstract translation: 提供了一种用于修复单晶涡轮叶片的方法，其包括具有尖端的翼型件，其具有尖端盖板，尖端冷却空气孔和尖端冠部。 该方法包括通过手动研磨来去除尖端冠，从而保留下面的顶盖板; 通过人工研磨制备尖端冷却空气孔; 通过手动焊接关闭所述制备的尖端冷却空气孔; 并通过LMF（激光金属成形）工艺来建立一个新的尖端冠。