Roll forming process and roll structure of a convex and concave special-shaped plate

Abstract

The invention relates to a rolling forming process of a convex and concave special-shaped plate. The special-shaped plate is formed by rolling a flat plate. The upper surface of the plate has a raised special-shaped structure, and the lower surface of the plate is a concave structure; The plate is rolled and formed by a pair of profiled rolls, in which the upper roll has a groove that matches the profiled structure, and the lower roll has a protrusion that matches the concave structure, and the plate is formed into a convex shape after rolling Concave profiled plate. The invention can better control the flow of metal in the rolling process through the cold finish rolling technology, and more effectively control the shape and size of the special-shaped cross-section plate, thereby realizing no cutting or less cutting processing of the special-shaped plate, saving materials, reducing costs, Increase productivity.

Description

technical field

[0001] The invention belongs to the technical field of rolling, and in particular relates to a rolling forming process of a convex and concave special-shaped plate and a roll structure. Background technique

[0002] Special-shaped plates are often used in the automotive industry and other fields. The main features are high forming precision, reduced welding links, and high production efficiency. Cutting, rolling, welding and other methods can be used to produce special-shaped cross-section plates. The rolling method saves metal materials, reduces additive manufacturing and subtractive manufacturing processes, and reduces costs.

[0003] The most difficult point in the forming of special-shaped plates lies in the forming of special-shaped structures of plates. The traditional cold finish rolling technology is used for the rolling of equal-thickness plates and rings. The rolling of longitudinal ribs does not solve the problem of longitudinal rib size control ve...

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