20 - Machinability of Ductile Iron Castings

Abstract:

The current study, which analyzes factors affecting machinability of ductile iron castings, is an extension of earlier studies. This earlier work was conducted at the Georgia Institute of Technology and is covered in DIS Research Report No. P14- October 1987. While the previous work showed how microstructure affects machinability, and developed quantitative relationships to show tool wear rates versus pearlite content, gri:lphite quality, and casting hardness, the study was limited to only turning operations. Additionally, this study was limited since it did not include an in depth assessment of all the factors affecting machinability.