Non-cutting manufacturing method for V-belt pulley uses pressure roller for cold-forming of aluminum/alloy round blank with integral hub section

摘要

The belt pulley (1) is manufactured from a round blank of aluminum or aluminum alloy, by cold-forming only. The inner hub section is created by material-compacting and thickening formed from the blank, and the outer part of the blank is formed dependent upon the desired profiling of the pulley, after the hub section has been formed. The process is carried out by a pressure roller. The round blank may have an integrally formed hub section (2) with hub profiling.