Nanoceram > Expertises > Forming > Pressing ceramic

Pressing: Preliminary step and Manufacturing process

Pressing is a technique that can be used both directly to produce the finished ceramic product and as a preliminary forming stage ahead of another production process.

Uniaxial pressing or Isostatic pressing

As its name indicates, with uniaxial pressing the force is applied in a single axial direction. It can be used to obtain finished parts, however, these parts must be very simple, small and with relaxed dimensional tolerances.

Isostatic pressing is usually used to complement uniaxial pressing. The aim is to produce a more highly-pressed product whose firing-induced shrinkage is easier to control.

It can also be used to form simple parts such as discs, bars or tubes.

Production method Pros Cons Type of part
  • Economical use of material
  • Industrial process
  • Medium and large production runs
  • Fast and inexpensive process
  • Requires a mould
  • Shrinkage is difficult to control
  • Not suitable for large parts
  • Not suitable for complex parts if used as the only manufacturing method
Ceramic discs manufactured by uniaxial pressing

Decorative discs obtained by uniaxial pressing

Ceramic bar manufactured by isostatic pressing

Ø 40 bar obtained by isostatic pressing

Ceramic discs produced from a bar made by isostatic pressing

Discs obtained by machining a bar pressed using an isostatic process

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