Production and Machining of Thin Wall Gray and Ductile Cast Iron

Fleischman, E. H. ; Li, H. ; Griffin, R. ; Bates, C. E. ; Eleftheriou, E.

United States. Department of Energy. Idaho Operations Office.

关键词: Copper;    Machining;    Gray;    Production Machinability;    Machinability;   

DOI  :  10.2172/769201
RP-ID  :  DOE/ID/13555
RP-ID  :  FC07-97ID13555
RP-ID  :  769201

美国|英语

来源: UNT Digital Library

【 摘 要 】

The University of Alabama at Birmingham, in cooperation with the American Foundry Society, companies across North America, with support from the U.S. Department of Energy, is conducting a project to develop an understanding of the factors that control the machinability of cast gray and ductile iron. Differences of as much as 500% have been found in machinability have been observed at the same strength. The most machinable irons were those with a high cell counts and few carbonitride inclusions. Additions of tin and copper can be added to both gray and ductile iron to stabilize the pearlite, but excessive additions (above those required to produce the desired pearlite content) degrade the machinability.