Method and apparatus for forging sections

An apparatus for manufacturing sections, preferably so-called beam preforms, from blanks with preferably rectangular section, where two web tools are provided, which by means of a press, forging machine or the like of a type known per se are moved to and from each other and at the limit of movement toward each other form between themselves a space of predetermined size and shape for forming a web portion on said section, and that at least one flange tool is provided, which by means of a press, forging machine or the like of a type known per se is moved to and from said web tools in a direction substantially perpendicular to the direction of movement of the web tools, and at the limit of movement toward the web tools form between the flange tool and the web tools a space of predetermined size and shape, where the height of the flange tool forging face is substantially greater than the smallest gap occurring between the web tools, and the side surfaces of the web tools which face the flange tool together with the flange tool form a tool pair intended to upset a flange portion on said section, and between which web and flange tools a blank is intended to be fed in successively and in steps and be deformed by forging successively and in steps, the apparatus comprising:

• said tools arranged to be moved simultaneously, at least during part of each step of the blank;
• the side of each web tool which faces the other web tool includes an inclined entrance part which in the longitudinal direction of the web tool transforms to a plane containing an outlet part, the outlet parts of the web tools being parallel, and the distance between said entrance parts being greater than the distance between said plane outlet parts;
• and a ridge projects from said inclined entrance part of each web tool, said ridge being located centrally and extending from the transition of said entrance part to said outlet part along substantially the entire length of the entrance part.