Abstract
AbstractDouble metal composite ring has the advantages of two materials, and is used in specific fields. The traditional manufacture method is welding. And some scholars try to use ring rolling process to produce a composite ring. However, the interface connection quality is not good. In this paper, a novel constructive hot ring rolling process to manufacture a seamless double metal composite ring is proposed. First, two separate rings with different metals are assembled together. And then the surface interface area on the upper and lower of the assembled ring are welded in an oxygen-free environment, which can suppress the interfacial oxidation during heating process. After that, the surface welded ring is cleaned and heated. Finally, the target double metal composite ring is formed by hot ring rolling. An experiment of constructive hot ring rolling process for double metal composite ring was done. The interface healing effect of the composite ring was studied. The result indicated that the interface healing degree was significantly improved by this method.KeywordsComposite ringRing rollingConstructiveInterface healing
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