Aero-engine W-shaped sealing ring manufacturing method

Abstract

The invention discloses an aero-engine W-shaped sealing ring manufacturing method. The aero-engine W-shaped sealing ring manufacturing method includes the steps that step 1, the number of required rolling passes for forming is calculated according to a structural form of a W-shaped sealing ring required to be formed; step 2, rollers for each rolling pass are designed, and all roller pairs are machined and produced; and step 3, technological machining of the W-shaped sealing ring is carried out. According to the aero-engine W-shaped sealing ring manufacturing method, by roll bending and circlebending forming, the continuous technological manufacturing method within a tolerance range can be guaranteed, the production cost can be reduced, the degree of technology automation is high, the technical risk is low, and the improvement of forming quality is facilitated; and by using rubbers or rubber bags filled with liquids as moulds, and sheet metal can be wrapped and pasted on the corresponding rigid moulds for forming under the action of pressure, so that the rubbers are in contact with the surfaces of materials when parts are formed, the surface quality of workpieces can be protected without mechanical damages, energy can be absorbed, impact time is prolonged, and metal sheets produce more plastic deformation, so that parts which meet production requirements are formed, the energyis saved, and the efficiency is high.

Description

technical field [0001] The invention relates to a method for manufacturing a W-shaped sealing ring of an aero-engine, which belongs to the technical field of sealing rings, in particular to a method for manufacturing a W-shaped sealing ring of an aero-engine based on roll bending-round-bending-shaping-butt welding . Background technique [0002] With the integration and lightweight development of parts and components in manufacturing fields such as aviation and aerospace, difficult-to-deform materials and parts with complex shapes and structures are widely used, which brings challenges to forming manufacturing technology. Complex thin-walled sheet metal parts occupy a considerable proportion in aero-engines, and play an increasingly important role in reducing mass, improving performance, and so on. The special-shaped sealing ring is installed in the key part of the aero-engine. It is a type of stator sealing structure with a new type of sealing form and better sealing effec...

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Problems solved by technology

However, it is limited to finite element simulation and has not been applied in actual process production. The real sealing ring development process also needs to consider the influence of many factors such as its elastoplasticity, so it is still necessary to explore the effects of different factors on the sealing ring. influence, and verify the theory through specific experiments

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