Process	Uniaxial pressing
	This shaping method is inexpensive and suitable for high-volume production of simple shapes (limited geometrical possibilities) such as refractories, tiles, electronic ceramics, etc. The uniformity of compaction is not very high. Uniaxial pressing involves the compaction of powder into a rigid die by applying pressure in a single axial direction through a rigid punch or piston. The presses are usually mechanical or hydraulic and the pressing cycle repeats 6 to 100 times/min. There are two kinds of uniaxial pressing. Dry pressing: for spray-dried powders containing 0-4% moisture; easy to automate; tight tolerances. Wet pressing: for 10-15% moisture, clay-containing powders; not well-suited for automation; larger tolerances.
Category	Mass conserving processes, Powder technology
Materials	Ceramics Metal powders Cermet
Typical products	Ceramic tile Harrow pin Sealing disc Self-lubricating bearings Toothed wheel
Competing processes	CIP (cold isostatic pressing) Investment casting Forging
References	Dansk Sintermetal A/S FJ Sintermetal
Price notes	Cycle times are 6-100 pieces a minute. Setup times are relatively low (a few hours). Tooling cost is 10,000 - 100,000 DKK.
Environmen- tal notes	Creation: There is almost no waste of material.
Photo	Thomas Nissen (Compuer graphics)
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