Method of making ventilator blower wheel involves sliding blades into openings in support plates and expanding them to clamp them in place

摘要

The method of making a ventilator blower wheel (1) involves sliding the blades (9) into receiving openings (11) in the support plates (3,5,7). The profile height of the blades is increased individually by plastic deformation in the area of the receiving openings (11) to clamp the blades in the openings.