Attachment Methods for Somaloy® components in Mechanical Constructions

Sammanfattning: Höganäs AB is asking for a way to attach Somaloy® components onto aluminum in electric motors. Gluing, Crimping and Clamping are the attachment methods that are investigated. For the Gluing part, tensile tests are made at different temperatures. The tests are performed with six different adhesive combinations on aluminum and two separate Somaloy® materials. The adhesive’s ability to attach onto the different sides of the Somaloy® component is also investigated. The Crimping part is performed with an aluminum housing and a Somaloy® component. The housing is heated until expansion and the Somaloy® component is placed inside. When the objects are cooled down, the component is pressed out. The Clamping part is only performed as calculations. The results show that it is possible to attach Somaloy® components with the use of different adhesives, such as the epoxy, Permabond ES550. The tested adhesives are more willing to attach to the punch side of the component. Crimping can be used, but it should be noted that the method has been tested only at room temperature. Clamping is also an alternative for attaching the components; however, the design of the component would have to be remade to obtain a wider clamping edge. Moreover, only calculations and no testing were performed on the clamping method.