Unlock instant, AI-driven research and patent intelligence for your innovation.

Turbine component repair with additive manufacturing

A technology of additive manufacturing and turbine, which is applied in the field of repairing components in turbines, and can solve problems such as difficult accurate blade assembly

Inactive Publication Date: 2018-09-07
GENERAL ELECTRIC CO
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, when attempting to repair / replace blades in a steam turbine, the small distances between adjacent blades and between the blades and surrounding components can make it difficult to accurately fit those blades into their desired positions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Turbine component repair with additive manufacturing
  • Turbine component repair with additive manufacturing
  • Turbine component repair with additive manufacturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0097] As indicated herein, the disclosed subject matter relates to turbomachines. More particularly, the subject matter disclosed herein relates to repairing components in turbomachines.

[0098] Aspects of the present disclosure include systems and methods for repairing turbine components without the need for subsequent heat treatment, as opposed to conventional methods. That is, the methods disclosed herein can utilize additive manufacturing to fill defects in turbine components (e.g., steam turbine components) during the repair process, and particularly with methods that do not require subsequent heat treatment (e.g., direct metal laser melting ( DMLM) or Direct Metal Laser Deposition (DMLD)).

[0099] In the following description, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration specific exemplary embodiments in which the present teachings may be practiced. These embodiments are described in sufficie...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Various embodiments include approaches for repairing a turbine component (12). In some cases, a method includes: removing a turbine component (12) from a turbine rotor assembly (14); identifying at least one flaw (16) in the turbine component (12); and performing direct metal laser melting (DMLM) or direct metal laser depositing (DMLD) on a fill material (90) to fill the at least one flaw (16) inthe turbine component (12), forming a repaired turbine component (100).

Description

technical field [0001] The subject matter disclosed herein relates to turbines. More particularly, the subject matter disclosed herein relates to repairing components in turbomachines. Background technique [0002] Turbines, for example steam turbines such as steam turbines, are designed to have useful lifetimes spanning years and even decades. During the course of their useful life, these machines and their components require repair and / or maintenance. For example, in a steam turbine, the rotor is often inspected and repaired to account for any imbalance in rotation, or wear and tear on components such as turbine blades. Repairing blades can be especially challenging due to the short pitch of the blades when they fit into rotor slots. That is, when attempting to repair / replace blades in a steam turbine, the small distances between adjacent blades and between the blades and surrounding components can make it difficult to accurately fit those blades into their desired posi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00B22F3/105
CPCB22F3/105B23P6/007B22F10/25B22F12/90B22F10/28F01D5/005F05D2230/80F05D2230/30Y02P10/25B22F7/062B33Y10/00B33Y50/02B22F5/04B23K26/342B23K26/032F01D5/12F01D9/04F01D25/243B22F2007/068F05D2220/31F05D2300/177F05D2300/171B23K2101/001B23K2103/04B23K2103/05B23K2103/08
Inventor D.斯里尼瓦桑M.库尔卡尼
Owner GENERAL ELECTRIC CO