Hot air riveting

The riveting process creates irresolvable interlocking bonds. This is achieved by forming or reforming of thermoplastics. In most cases in this procedure only point-shaped or segmented joints are realized. In contrast to welding of two components there cannot be achieved hermetic joints. A particular version of this procedure is the bonding of plastics with metals, textiles and cardboard. The method is frequently used for wooden decoration parts, into which a chrome decoration strip has to be embedded. During the heating-up phase the hot air riveting does not get into contact with the material. A continous hot air flow heats up the riveting pin. Here the forming of the riveting head is carried out with a cold stamp in a separate station. By the cooling phase next in line a lower relaxation of the plastic material is achieved by pressure and mold constraint