Manufacture of Toothed Elements in Nanoausferritic Ductile Iron

• Main Authors: Myszka D., Skołek E., Wieczorek A.
• Format: Article
• Language: English
• Published: Polish Academy of Sciences 2014-10-01
• Series: Archives of Metallurgy and Materials
• Subjects: austempered ductile iron; nanoausferritic matrix; austempering; toothed elements
• Online Access: http://www.degruyter.com/view/j/amm.2014.59.issue-3/amm-2014-0211/amm-2014-0211.xml?format=INT

The technology currently used for the fabrication of toothed wheels, gear couplings and chain drums involves the induction hardening process or hardening and tempering after carburising. All these processes take a long time and cause adverse changes in the dimensions and surface quality of products, requiring post-treatment machining to remove the resulting cavities. The paper proposes the implementation of gear elements made of ductile iron with nanoausferritic matrix obtained by a new appropriate heat treatment process. The new material offers good performance characteristics and nearly no need for the application of other technological processes commonly used in the manufacture of gears.