Design Consideration for Lightweighting With Ductile Iron Castings 2020-01-0656
There are opportunities for lightweighting with ductile iron castings. Current research shows ductile iron castings free of massive carbides can be achieved at under 2 mm (0.080”) through alloying or process changes which means that significant weight reductions are possible. In fact for aluminum components over 0.250” thick ductile iron may provide lightweighting opportunities at a cost savings. However, the conventional guidelines for casting design are inadequate when using ductile iron at dimensions less than the typical machine stock. This paper will discuss the current research on thin walled ductile iron, when it is superior to aluminum, design considerations, and current DOE SBIR funded research efforts to address these inadequacies.
Sarah Jordan, Mark DeBruin, Christopher Brown, Hudson Gasvoda
Skuld LLC, Worcester Polytechnic Institute