For instance, the radial expansion of Distaloy AE powder compacted at 600 MPa/150°C is about 10% lower than the cold
compacted part.
It should be noted that the amount of spring back depends on the tooling materials and compaction pressure. The beneficial effect of
warm compaction on radial expansion is more pronounced for carbide dies
compared to high-speed steels. Although the green expansion increases at
higher densities (compaction pressures), the spring back is still lower than
when compacting at room temperature.