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Composite Blade Made by Additive Manufacturing

A blade, most of the technology, applied in the field of composite blades, can solve problems such as limited mechanical strength, increased plate manipulation, etc., to achieve the effect of improving firmness and uniform resistance

Active Publication Date: 2015-03-18
SAFRAN AERO BOOSTERS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical strength of such blades is limited
Furthermore, its production requires more preparatory operations as well as plate handling which increases the cost of such blades

Method used

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  • Composite Blade Made by Additive Manufacturing
  • Composite Blade Made by Additive Manufacturing
  • Composite Blade Made by Additive Manufacturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] In the following description, the terms "inner" or "inner" and "outer" or "outer" refer to a position relative to the axis of rotation of the axial turbine.

[0059] figure 1 An axial turbine is shown schematically. In this case it is a two-way turbojet. The turbojet engine 2 comprises a first compression stage (designated low-pressure compressor 3 ), a second compression stage (designated high-pressure compressor 6 ), a combustion chamber 8 and one or more turbine stages 10 . During operation, the mechanical power of the turbine 10 , transmitted via the central shaft to the rotor 12 , drives the two compressors 3 and 6 . Means for providing higher gear ratios increase the rotational speed delivered to the compressor. Alternatively, different turbine stages can be connected to the compressor stage via concentric shafts. The compressor stages include several rows of rotor blades associated with rows of stator blades. The rotation of the rotor about its axis of rotat...

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PUM

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Abstract

The present application relates to a blade of a rectifier of a low pressure compressor of an axial turbomachine. The blade can also be a rotor and / or turbine blade. The blade includes a composite material with a matrix and a reinforcement comprising a mesh with rods. The rods of the reinforcement are connected to each other and are distributed throughout the volume between the pressure side surface and the suction side surface of the blade. The mesh forms a three-dimensional structure extending over the majority of the thickness of the blade between the pressure side surface and the suction side surface and / or the majority of the length of the blade between the leading edge and the trailing edge. The present application also relates to an iterative method for manufacturing a blade composite where the reinforcement is formed by additive layer manufacturing based on titanium powder and then placed in an injection mold.

Description

technical field [0001] The invention relates to a composite blade of a turbomachine. More specifically, the present invention relates to a composite blade having reinforcements and a matrix. The invention also relates to a turbine engine with a blade according to the invention. The invention also relates to a method of manufacturing a composite blade with reinforcements and a matrix. Background technique [0002] An axial turbine comprises an annular row of rotor blades for accelerating the airflow and an annular row of stator blades for regulating or rectifying the accelerated airflow. The blades must be lightweight to reduce the mass of the turbine. In particular, the reduction of the rotor blades reduces the inertia of the rotor. [0003] However, the reduction in blade weight must meet mechanical strength criteria. The blades must withstand the vibrations and possible ingestion in the turbine. Furthermore, the rotor blades must withstand centrifugal forces. The co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D5/14
CPCB29K2309/02B29K2305/00F05D2230/31F05D2230/30F05D2300/6032B22F5/04B33Y80/00F01D5/282B29K2079/085F05D2300/6033B29C70/08B29L2031/08F05D2300/44F05D2300/6031B28B1/001B33Y10/00B29C45/14631B29C70/70B29D99/0025Y02T50/60F01D5/147
Inventor R.佩雷斯
Owner SAFRAN AERO BOOSTERS SA
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