公开(公告)号：US20150184514A1

公开(公告)日：2015-07-02

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 ,  F01D5/18

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。

公开(公告)号：US20160114433A1

公开(公告)日：2016-04-28

申请号：US14886164

申请日：2015-10-19

Applicant: ALSTOM Technology Ltd

Inventor： Dirk JAEKEL ,  Balint HORVATH ,  Sorin KELLER ,  Guenter AMBROSY

IPC: B23K26/348 ,  B23K9/16 ,  B23K26/12 ,  B23K26/21

CPC classification number: B23K26/348 ,  B23K9/0213 ,  B23K9/16 ,  B23K9/167 ,  B23K26/067 ,  B23K26/123 ,  B23K26/21

Abstract: The present relates to a method of welding in deep joints in narrow-gap geometry. The two metallic components are arranged next to each other such that there is nearly a zero gap between the two components. The step of joining two metallic components is performed in two stages, the first stage being a root weld and the second stage being a fill up weld. The root weld is completed at the joining of the two discs starting from a middle portion to a point up to which there is still a zero gap between the two discs. From the point there exists a non-zero gap between the two discs up to an outer portion. The filler gap is filled by fill up welding. During fill up welding, a filler wire is melted along with the two discs by using the first source of energy, and to fill the filler gap along with molten material of the two discs.

Abstract translation: 本发明涉及一种在狭缝间几何形状的深接头焊接方法。 两个金属部件彼此相邻布置，使得两个部件之间几乎有零间隙。 连接两个金属部件的步骤分两个阶段执行，第一阶段是根焊，第二阶段是填充焊缝。 在从中间部分到两个盘之间仍然有零间隙的点处的两个盘的连接处完成根焊接。 从这一点开始，在两个盘之间存在直到外部的非零间隙。 填充间隙通过填充焊接填充。 在填充焊接期间，通过使用第一能量源将填充线与两个盘一起熔化，并且与两个盘的熔融材料一起填充填料间隙。