free-machining steel

free-machining steel

[′frē mə¦shēn·iŋ ′stēl]
(metallurgy)
Steel to which impurities have been added to improve machinability.
References in periodicals archive ?
In a related matter, the Institute of Advanced Manufacturing Sciences Inc (IAMS), Cincinnati, OH, is leading the Steel Machinability Research Consortium to select a non-toxic additive for free-machining steel and develop manufacturing processes for the new material.
The XPET inserts are intended for use with nonferrous materials such as stainless steels, copper alloys, and aluminum, as well as gummy, free-machining steels. The pressed inserts are particularly effective when used with helical roughing end mills (HREM) that are engineered for heavy-duty square shoulder roughing applications such as long-edge profiling and step milling.