Plate rolling process and device thereof

Abstract

The invention provides a plate rolling process and device. The plate rolling process comprises the steps that pressure is applied to a first area of a plate so that the first area can generate first preset deformation at least in the depth direction; driving force is applied to the first area of the plate, so that the plate moves in the length direction; in the process that the plate moves in the length direction, a second area of the plate is heated, and pressure is applied to the second area according to preset rolling displacement parameters so that the second area can generate second preset deformation in the width direction and/or the depth direction; wherein the width direction, the depth direction and the length direction are perpendicular to one another. According to the plate rolling process, the shape change of the high-strength steel plate in the depth direction and the width direction can be realized, so that the geometrical shape of a part is more flexible to adapt to the lightweight requirement of an automobile; and in addition, the sheet metal is heated before roll forming, so that the strength grade, the forming quality, the forming geometric limit and the like of the formed plate are greatly improved.

Description

technical field [0001] The invention relates to the field of sheet metal processing, in particular to a sheet material rolling process and a device thereof. Background technique [0002] Compared with steel structural parts with a relatively single shape, under the condition that the structural rigidity and strength are satisfied, the high-strength steel with variable cross-section can make the structural design of automobile parts more flexible, and can make full use of the limited space of the car body, so it can better meet The demand for lightweight and structural complexity in modern automobile design, so the application of high-strength steel with variable cross-section is one of the important paths for future body weight reduction. [0003] However, at present, the main forming method of steel structure plates is roll forming, that is, a steel plate is finally formed into the required part shape through multi-pass rolling of rollers. This traditional rolling method ca...

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Problems solved by technology

[0004] In view of this, the present invention provides a sheet material rolling process, which can solve the problem that the traditional roll forming technology cannot form variable cross-section parts

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