| 摘要 |
The invention relates to a method for forming a pipe (21), preferably a plastic pipe, in several steps. In a first step, the initial and essentially circular cross-section of said pipe is radially flattened on at least one side by forming the pipe in a first deforming direction. In a second step, said cross-section is formed in a second deforming direction that is essentially vertical in relation to the first deforming direction. After deforming, the final cross-section is provided with a reduced outside diameter and at least one section that is folded towards the inside. The aim of the invention is to provide such methods in a more cost-effective manner. According to the invention, the pipe (21) rests on a holding device (12) and a diametrically opposing support device after the pipe has been deformed in the first deforming direction (6). The holding device (12) rests on the flattened section. The flattened section is automatically spaced apart from the holding device (12) by deforming in the second deforming direction and for producing the section (21) that is folded towards the inside. |
