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Structural repair using cold sprayed aluminum materials

A technology of nozzle and alloy aluminum, which is applied in the direction of metal material coating process, coating, fusion spraying, etc., and can solve the problems of unusability, negative impact on the performance of the base material, and the benefit of the structure.

Inactive Publication Date: 2006-07-12
UNITED TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these repairs applied to the affected zone do not provide benefits to the structure
Therefore, these existing repair methods cannot be used when the underlying structure is compromised to its minimum size despite component size restoration, because the repaired component does not have the required strength
Fusion welding processes enable structural repairs but often result in unacceptable deformations
Additionally, fusion welding and similar processes generate high temperatures that can negatively affect the properties of the base material

Method used

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  • Structural repair using cold sprayed aluminum materials

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Embodiment Construction

[0009] The present invention relates to the repair of elements or parts, such as elements and parts of turbine engines, using powdered aluminium-containing repair materials.

[0010] Over the past few years, a technique called cold gas dynamic spraying (cold spraying) has been developed. The advantage of this technique is that it can provide enough energy to accelerate the particles to a high enough velocity that when the initial coating collides, the particles are plastically deformed and bonded to the surface of the deposited component, forming a relatively dense coating or structural deposit . When subsequent coatings are applied, the particles adhere to previously deposited coatings. Cold spray does not exhibit solid metallurgical transfer particles. The cold spray process has been found to be most suitable for the repair of parts formed from plastic materials. The cold spray process can be used to repair turbine engine components made of aluminum or magnesium-based mat...

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Abstract

A method for repairing components comprises the steps of providing a component having a defect to be repaired and depositing an aluminum containing repair material over an affected area on a surface of the component so that the repair material plastically deforms and bonds to the affected area upon impact with the affected area and thereby covers the affected area .

Description

technical field [0001] The present invention relates to a method for repairing components, such as turbine engine components, using cold spray powdered aluminium-containing materials. Background technique [0002] Current repair methods perform dimensional repairs on aluminum and magnesium material structures through various techniques such as plasma spraying, high vacuum pumping, and epoxy bonding. However, these repairs applied to the affected zone provide no benefit to the structure. Therefore, these existing repair methods cannot be used when the underlying structure is compromised to its minimum dimensions despite the restoration of component dimensions, because the repaired component does not have the required strength. Fusion welding processes enable structural repairs but often result in unacceptable deformations. In addition, fusion welding and similar processes generate high temperatures that can negatively affect the properties of the base material. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/04B05B7/14
CPCC23C24/04B23P6/007C23C4/12C23C4/06C23C4/18C23C4/02
Inventor A·德比卡里J·D·海恩斯D·A·鲁茨
Owner UNITED TECH CORP