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Metal edge wrapper for aircraft engine fan blade, machining tool and machining method

An aircraft engine and metal edging technology, which is applied in the direction of machines/engines, metal processing equipment, engine components, etc., can solve the problems of metal edging processing difficulties, poor matching of fan blades, etc., to reduce processing costs, ensure orthopedic effects, The effect of improving efficiency

Pending Publication Date: 2019-11-12
上海两擎机电科技合伙企业(有限合伙)
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AI Technical Summary

Problems solved by technology

[0004] Therefore, a new manufacturing method is needed for the metal edging of fan blades to avoid the difficulty of processing integrated metal edging and the poor matching of fan blades with complex shapes

Method used

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  • Metal edge wrapper for aircraft engine fan blade, machining tool and machining method
  • Metal edge wrapper for aircraft engine fan blade, machining tool and machining method
  • Metal edge wrapper for aircraft engine fan blade, machining tool and machining method

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Embodiment Construction

[0032] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] See figure 1 with figure 2 , An aircraft engine fan blade with a metal edging, the metal edging includes side plates (1, 2) and a nose 3, the outer side of the nose 3 is formed into a large curvature convex from bottom to top, and The bottom of the nose wing 3 is concave to form an inner concave surface, at least one of th...

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Abstract

The invention discloses a metal edge wrapper for an aircraft engine fan blade, a machining tool and a machining method and belongs to the aircraft component manufacturing technology. The metal edge wrapper comprises side plates and a nose wing. The machining tool comprises a pressure part, an inner strutting piece, side pressing plates, end clamping plates, a built-in fixing part and an external pull fixed base. The pressure part and the side pressing plates are in pivot connection through four-link pressing and locating assemblies. The machining method comprises the steps of preparing the tool, clamping the metal edge wrapper, welding the metal edge wrapper, conducting distressing heat treatment and removing the tool to complete machining. The machining method is adopted for conducting welding on the metal edge wrapper clamped and located by the tool and can adapt to multi-curvature complicated 3D-shape metal edge wrappers. The clamped metal edge wrapper is leveled first. Implementation of the machining method is not limited to the welding manners such as electron beams, CMT or laser. The welded metal edge wrapper can be subjected to heat treatment along with the machining tool. The shaping effect is ensured. Through the machining method, the machining cost of the metal edge wrapper can be remarkably reduced, and the efficiency can be improved.

Description

Technical field [0001] The invention relates to the manufacturing field of aircraft engine fan blades, in particular to metal edging, processing tooling and processing methods for aircraft engine fan blades. Background technique [0002] In the manufacture of aircraft engine fan blades, metal edging has been commonly used to enhance the performance of composite fan blade bodies. Aircraft engine design and manufacturing companies represented by General Electric and Snecma, in GENX, GE9X, LEAP and other engine models, have now generally used metal edging reinforced composite materials to make their fan blades. Commercial Aviation Engine Corporation of China is also developing the design and manufacturing of fan blades based on composite materials and metal edging (CN 109723671A; CN 103628923B). The new composite fan blades can help the engine significantly reduce weight, improve fuel efficiency and thrust-to-weight ratio, and have significant economic benefits. The design of the ...

Claims

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Application Information

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IPC IPC(8): F01D5/14F04D29/26C21D1/00C21D9/00B23K26/21
CPCF01D5/147F04D29/26C21D1/00C21D9/0068B23K26/21
Inventor 贾明徐惠宇吴勇刘荣勇
Owner 上海两擎机电科技合伙企业(有限合伙)
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