Warm electromagnetic forming device and method of skin piece

A technology for electromagnetic forming and skin parts, which is applied in the field of sheet metal forming, can solve problems such as the forming of skin parts that are not suitable for double curvature or multi-curvature, and achieves less energy required for equipment, high forming efficiency, and good forming accuracy. Effect
CN108856442AActive Publication Date: 2018-11-23CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2018-11-23

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Abstract

The invention discloses a warm electromagnetic forming device of a skin piece. The warm electromagnetic forming device comprises a base plate, a die, a plate material and clamping plate assemblies used for fixedly clamping the plate material, the clamping plate assemblies are arranged on the base plate, the plate material is fixedly clamped between the clamping plate assemblies, the warm electromagnetic forming device further comprises a discharge coil and heating pieces used for heating the plate material, the discharge coil is arranged above the plate material, and the heating pieces are arranged on the two sides of the plate material. The invention further discloses a warm electromagnetic forming method which comprises the steps of plate material fixing, plate material stretch forming,plate material heating, electromagnetic forming and the like; and complete attachment of the plate material and a forming face of a mold is achieved by repeatedly executing plate material stretch forming, heating and electromagnetic forming. The warm electromagnetic forming device has the advantages that the forming accuracy is high, the forming quality is good, the forming efficiency is high, andthe requirement of the equipment for the discharge energy and the coil strengthen is low.
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Description

technical field

[0001] The invention belongs to the technical field of sheet metal forming, and in particular relates to a thermal electromagnetic forming device and method for skin parts. Background technique

[0002] The skin is a key part of the aerodynamic shape of the aircraft, and its forming quality is directly related to the aerodynamic performance and service life of the aircraft. The skin is mainly manufactured by stretch forming process. On the CNC skin stretching machine, tension and bending moment are applied to the jaws at both ends, so that the sheet slowly fits the mold surface. In the skin stretch forming method, the tension is mainly provided by the downward movement of the material clamping frame, so that the skin wool wraps a large area of ​​the lower model surface tightly. After that, in order to reduce springback after forming, continue to apply a small amount of supplementary pull. Therefore, the process parameters of the whole forming process are co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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