Ultrathin unequal-width blade laser internal powder feeding spot-changing cladding repairing method and repairing device

A repair method and wide blade technology, applied in the direction of coating, process efficiency improvement, energy efficiency improvement, etc., can solve problems such as difficult repair and large machining allowance, achieve unequal width variation strength, improve utilization rate, The effect of dense tissue

Pending Publication Date: 2022-06-03
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide an ultra-thin unequal width blade laser internal powder feeding spot cladding repair method and repair device, which solves the technical problems of the current general laser cladding method, which is difficult to repair and has a large processing allowance after repair

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  • Ultrathin unequal-width blade laser internal powder feeding spot-changing cladding repairing method and repairing device
  • Ultrathin unequal-width blade laser internal powder feeding spot-changing cladding repairing method and repairing device
  • Ultrathin unequal-width blade laser internal powder feeding spot-changing cladding repairing method and repairing device

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Embodiment Construction

[0037] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

[0038] In the description of this application, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientations or positional relationships indicated by vertical, horizontal, top, bottom, inner, and outer are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and The description is simplified rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used for descriptive pu...

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Abstract

The invention discloses an ultra-thin unequal-width blade laser internal powder feeding spot-changing cladding repairing method and device, and the repairing method comprises the following steps that 10, a light path system, a powder pipe and a to-be-repaired blade are arranged, laser converts a solid cylindrical light beam into an inverted-cone-shaped hollow light beam through the light path system, and the inverted-cone-shaped hollow light beam passes through the powder pipe; the powder tube is located in a hollow light-free area of the inverted-cone-shaped hollow light beam. According to the invention, an in-light powder feeding technology is adopted, the powder is vertically injected into the laser from the nozzle to be fully molten, and the conveying of the collimated gas around the powder pipe ensures the good centrality of the powder beam, so that the powder utilization rate is improved, and the phenomenon that the powder which is not fully molten is adhered to the surface of a cladding layer due to powder dispersion is reduced. The method is not limited by the shape of a machined part, and irregular curved surface and multi-angle cladding can be achieved.

Description

【Technical field】 [0001] The invention relates to the technical field of repairing turbine blades, in particular to a method and a repairing device for cladding and repairing ultrathin unequal width blades by internal powder feeding and spotting. 【Background technique】 [0002] In practical applications, turbine blades are one of the core components in aero-engine manufacturing. They have been in a complex and harsh working environment for a long time, and are prone to various damage and defects, but the replacement of blades is expensive. Therefore, it is necessary to carry out research on blade repair technology to reduce the manufacturing cost, which plays a very important role in extending the service life of the blade and exerting the potential of the material, and has huge economic benefits. [0003] At present, the traditional blade repair methods mainly include brazing technology, argon arc welding technology and laser cladding technology. Brazing technology is wide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B23P6/00
CPCC23C24/103B23P6/007Y02P10/25
Inventor 傅戈雁庄锐曹浩金磊
Owner SUZHOU UNIV
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