An asymmetric cyclic bending deformation device for metal sheet and strip

Abstract

The invention relates to an asymmetrical cyclic bending deformation device for sheet metal strip. The technical solution is: the device includes a large bending roll (1), a small bending roll (2), a support roll set (3) and a clamping roll (4); the large bending roll (1) and the small bending roll (2) The sum of the quantity is 3, or is 5, or is 7, or is 9, or is 11, and the number of groups of supporting roller group (3) is identical with the roller number of small bending roller (2), and supporting roller group (3) It consists of 1 to 2 supporting rollers. The roll diameter of the large bending roll (1): the roll diameter of the small bending roll (2) is (1.6-9.9): 1; the support roll is a solid roll in the through section, or a solid roll in 3-11 sections, or a solid roll made of 3 to 11 backing bearings are assembled. The device can not only realize the continuous plastic deformation of the metal plate and strip, but also have large cumulative deformation, and the bent and deformed metal plate and strip have large size and uniform deformation structure.

Description

technical field [0001] The invention relates to a deformation device for metal sheet and strip. In particular, it relates to an asymmetrical cyclic bending deformation device for sheet metal strips. Background technique [0002] The plastic deformation of the metal sheet and strip is often accompanied by a change in size. However, sometimes it is hoped that the properties of the metal sheet and strip can be adjusted through deformation while keeping the size of the metal sheet and strip basically unchanged. Therefore, technicians are constantly developing and researching New sheet metal strip deformation unit to produce sheet metal strip that meets performance requirements. [0003] The equal-channel angular pressure device with the same cross-sectional size and shape but a certain angle between the cross-sectional normals can make the metal plate and strip obtain a super-large equivalent strain and refine the grain size to the nanometer level, but this technology does not ...

AI Technical Summary

Problems solved by technology

[0003] The equal-channel angular pressure device with the same cross-sectional size and shape but a certain angle between the cross-sectional normals can make the metal plate and strip obtain a super-large equivalent strain and refine the grain size to the nanometer level, but this technology does not affect the mold The requirements are high, the size of the prepared sample is small, the organization and control of the production process are difficult, and it is difficult to achieve continuous production

Although the constrained tooth pressure device can achieve continuous large deformation of the plate and strip, the deformation structure is often very uneven

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