B-16 CAULKING OF DISSIMILAR MATERIALS USING SHOT PEENING(Session: Surface Modification)

抄録

In this work, caulking of a dissimilar material using shot peening was investigated. The availability of the plastic flow, i.e., the peening droop makes the joining of the dissimilar material possible. This method is similar to caulking. In the experiment, two kinds of shot peening machines, air type and centrifugal type, were employed. In order to examine experimentally the influence of working temperature on bondability, equipment with a heating furnace was produced. The influence of processing conditions on the joining of the dissimilar material and the substrate was examined. The bond strength was evaluated by tensile test. The dissimilar materials were successfully joined to the substrate by the peening droop. The bond strength increased with kinetic energy of shots and processing temperature. It was found that the present method using the peening droop was very effective for joining dissimilar materials.