Magneto-rheological composite soft mold and plate forming method based on same

A magnetorheological and magnetorheological elastic technology, applied in the field of sheet metal forming, can solve the problems of different, incapable of forming and processing of sheet metal parts, and inability to realize local differential pressure distribution, so as to promote full filling and solve local differential pressure distribution , the effect of avoiding forming defects
CN109746302AActive Publication Date: 2019-05-14HENAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN UNIV OF SCI & TECH
Publication Date
2019-05-14

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Abstract

The invention relates to a magneto-rheological composite soft mold and a plate forming method based on the same. The magneto-rheological composite soft mold comprises a soft mold matrix constituted byI-type magneto-rheological elastic materials, and one or more II-type magneto-rheological elastic units or one or more magneto-rheological visco-plastic units are packaged at the predetermined position in the soft mold matrix; the II-type magneto-rheological elastic units are constituted by II-type magneto-rheological elastic materials; the magneto-rheological visco-plastic units are constitutedby magneto-rheological visco-plastic materials; and in an applied magnetic field, the pressure response characteristics of the I-type magneto-rheological elastic materials, the II-type magneto-rheological elastic materials and the magneto-rheological visco-plastic materials are different. The magneto-rheological composite soft mold is used as a plate forming force-transmitting medium, full fillingof plate local complex structural characteristics can be promoted, the forming defects are avoided, and the problem that an existing magneto-rheological elastomer soft mold cannot achieve local differential pressure distribution is effectively solved.
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Description

technical field

[0001] The invention relates to a magnetorheological composite soft mold and a plate forming method based on the magnetorheological composite soft mold, belonging to the technical field of plate forming. Background technique

[0002] Thin-walled shell parts with complex shapes, such as aero-engine heat shields, hollow blades, special-shaped nozzles, etc., can realize special part functions, improve the lightweight level of equipment, and improve equipment performance. Due to the comprehensive consideration of assembly position, weight reduction, aerodynamics and other factors, such thin-walled shell parts with complex shapes have structural characteristics such as thin walls, non-rotation, and local curvature mutations, which increase the stress in the sheet forming process. Control difficulty.

[0003] If such parts are formed by stamping in pieces and combined welding, there will be problems such as difficult positioning, thermal deformation of welding, an...

Claims

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