B29C 65/568

Joining {or sealing} of preformed parts {, e.g. welding of plastics materials}; Apparatus therefor using mechanical means {or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined using a swaging operation, i.e. totally deforming the edge or the rim of a first part to be joined to clamp a second part to be joined}