Cast Iron Deep Hole Drilling: Graphite Dust, Abrasive Wear, and What I've Learned
Cast Iron Deep Hole Drilling: Graphite Dust, Abrasive Wear, and What I’ve Learned Cast iron is one of those materials that looks easy on paper. It is machinable, it is relatively cheap, and the chips come off short and brittle. But after drilling thousands of holes in gray iron, ductile iron, and compacted graphite iron (CGI) for hydraulic valve bodies, pump housings, and machine tool components, I can tell you that “cast iron” is not one material — it is a family, and each member treats your tooling differently. ...