Method and device for producing metal profiles having a closely toleranced chamber dimension

摘要

The invention relates to a method and device for producing metal sections having two profile flanges arranged opposite one another and having flange inner faces that are to be kept apart from each other by a closely toleranced final chamber dimension. In order to adapt the chamber dimension from a starting chamber dimension K0 to a desired final chamber dimension K1, the metal section is passed through the device, which forms working gaps between an inner working roll pair and outer support rolls. The working rolls that form the inner working roll pair roll over each other in order to brace the forming forces exerted on the working roll pair from the flange inner faces against each other.

主权项

1. A method for producing a metal section having a first flange and a second flange opposite the first flange, which are to be spaced apart from another by a closely toleranced final chamber dimension, the method comprising:
positioning the first flange in a first working gap that is formed between a first outer support body and a first inner working roll of a working roll pair of a device; positioning the second flange in a second working gap that is formed between a second outer support body and a second inner working roll of the working roll pair; and displacing the metal section and the device relative to one another in a lengthwise direction of the section, wherein the inner working rolls roll on the flange inner faces and reshape the flange material in a cold forming process and the material of the inner faces of the first and second flanges is work-hardened, wherein the first inner working roll and the second inner working roll roll over each other and the forming forces acting on the working roll pair transversely to the lengthwise direction of the section from the flange inner faces are braced against each other, and wherein a web height of a profile of the metal section is maintained substantially unchanged.