VERFAHREN ZUR HERSTELLUNG EINER ROHRFOERMIGEN NOCKENWELLE

摘要

The invention relates to a process for the manufacture of a tubular camshaft in accordance with which process individual cams are subsequently attached to a prefabricated tubular shaft. Such processes acquire ever increasing importance in view of the multivalve technology utilized in automobile construction vis-a-vis processes still predominantly in use today employing casting and subsequent lathing and grinding of camshafts. In accordance with the invention, powdery cam material is directly compressed onto the prefabricated tubular shaft and sintered. With this process, utilization of a single-use compression jacket mold is critical, which jacket mold is preferably manufactured according to the synthetic blow mold process. In addition to its economical nature, this process provides the advantages of enabling greater design flexibility with respect to molding and selection of materials to be used.