Studies of the wear processes of dies for aluminum profile extrusion with prototyped nitrided layers

摘要

In this publication are presented the results of SEM examinations of the structure and distribution ofVickers HV0.1 hardness in open and closed dies (die cores) made from WCLV steel for extrusion of aluminum profiles, whose surface layer had been hardened as a result of a two-step gaseous nitriding with the Zero Flow method. The main processes causing wear of the studied dies were determined. Dies with the aforementioned nitrided layers can fulfill requirements for operational durability in the case of medium production runs of aluminum profiles, without needing to undergo regenerative processes.