Metal production mills produce flat metal sheet and strip products into coil forms that are subjected to further fabrication for shape correction. This article provides a discussion on the principle of shape correction and describes the role of various fabrication processes in shape correction. These processes include flattening, leveling, slitting, and cut-to-length.

Direct powder rolling (DPR) is a process by which a suitable powder or mixture of powders is compacted under the opposing forces of a pair of rolling mill rolls to form a continuous green strip that is further densified and strengthened by sintering and rerolling. This article discusses the basic principle, process considerations, and advantages of DRP, and describes the application of this process in the manufacture of powder titanium and titanium alloy components. It further illustrates the complexity of the process and describes the benefits of using DRP in terms of economics and product quality.