Manufacturing a decoupling element useful in motor cars, comprises assembling outer ring, damping element and inner ring, and laser welding damping element with an inside surface of outer ring and an outer surface of inner ring in regions

摘要

The method for manufacturing a decoupling element (10) comprising an outer ring (16), a damping element (14) and an inner ring (12), comprises initially assembling the metallic outer ring, the damping element and the metallic inner ring to form an intermediate product, and welding the damping element with an inside surface of the outer ring and an outer surface of the inner ring in regions by laser welding. A laser beam is focused on the outer surface of one of the rings when the damping element is welded without impairing the appearance of the outer surface of the other ring. The method for manufacturing a decoupling element (10) comprising an outer ring (16), a damping element (14) connected with the outer ring and an inner ring (12) connected with the damping element, comprises initially assembling the metallic outer ring manufactured from a metal wire, the damping element and the metallic inner ring to form an intermediate product, and welding the damping element with an inside surface of the outer ring and an outer surface of the inner ring in regions by laser welding. A laser beam is focused on the outer surface of one of the inner and outer rings when the damping element is welded with the inside surface of the outer ring and the outer surface of the inner ring without impairing the appearance of the outer surface of the other one of the two inner and outer rings. Focal points of the laser beam are focused when the damping element is welded with the inside surface of the outer ring and the outer surface of the inner ring without impairing the appearance of the outer surface of the outer ring. The focal points of the laser beam are shifted after welding the damping element with the inner and outer rings such that the laser beam closes a formed channel during welding the rings, on which the laser beam is focused. The laser beam is focused relative to a transverse plane under an angle transverse to a symmetry axis of a decoupling element bent on the surface of the ring. A precursor is injected before welding the inner ring, the outer ring and the damping element such that the outer ring with the damping element and the damping element with the inner ring form a press fit. The decoupling element is subjected to an artificial aging after the welding, in which the damping element is compressed in the finished welded decoupling element with a predetermined pressing force for multiple times. A molding part formed from a wire mesh is used as the damping element. An independent claim is included for a plant for manufacturing a decoupling element.