Forming
Economical forming is determined by volume and tolerances of the final part. Dry pressing to size is the most economical forming method for volumes of 300 pieces or more, which help to justify the initial expense of tooling designed specifically for each part. Injection molding is used for complex parts where dry pressing isn't possible. Isostatic pressing is suited to low volumes and prototype items. Slip casting makes thin-walled uniform shapes possible for low- and medium-volume production, while extrusion is used for high-volume, constant cross-section long-length tubing and rod.