Machinability of austempered gray iron (AGI)


Nowadays gray cast iron still represents an adequate material for many products. But if the requirements on strength increase, gray cast iron bows out because of the limited tensile strength. In this case compacted graphite iron is the material of choice. But in past years the increasing material costs and the poor castability expedited the development of new materials. In this development austempered gray iron is of utmost importance. By a special heat treatment a microstructure is generated which is comparable to ADI materials an which causes a clearly higher tensile strength without alloying. But for a wider industrial use the knowledge about machining this material is missing. In context of a research project which is aided by the Aif over the FVG at the WZL the cutting properties of this innovative material group is investigated.

The IGF-research project 17578 N of the Research Association Foundry Technology e.V. (FVG) Hansaallee 203, 40549 Düsseldorf, is funded by the AiF within the program to promote Joint Industrial Research (IGF) by the Federal Ministry for Economic Affairs and Energy, following a decision of the German Bundestag.


Do you have questions concerning this project?

Your contact:

Dipl.-Ing. Sven Lung
Tel.: +49 241 80-20523, Fax: +49 241 80-22293